{"title":"21700 BATTERY","description":null,"products":[{"product_id":"samsung-inr21700-50s-5000mah-25a-li-ion-battery-for-power-tools-e-bikes-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-50S 5000mAh 25A Li-ion Battery for Power Tools, E-Bikes \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-50S ultra-high capacity, high-drain lithium-ion cells for your power tools, electric mobility, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-50S 5000mAh 25A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an industry-leading high-capacity, high-drain 21700 cylindrical power cell. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5000mAh typical capacity (4800mAh minimum) on a 3.6V–3.7V nominal platform with a proven 25A constant continuous discharge rating (up to 45A continuous when monitored with an 80°C thermal cut-off). Combining extraordinary runtime with serious high-current discharge capability, it is the premier choice for high-power cordless tools, electric bicycles, e-scooters, high-lumen flashlights, robotics, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 50S Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell widely recognized for delivering an unmatched combination of 5000mAh capacity and high-drain power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25A Constant Discharge Rating:\u003c\/strong\u003e Delivers true 25A constant continuous current without temperature monitoring (and up to 45A continuous with 80°C thermal monitoring)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5000mAh Ultra-High Capacity:\u003c\/strong\u003e 5000mAh typical (4800mAh minimum) for maximum runtime and energy density in high-performance portable applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast CC-CV Charging:\u003c\/strong\u003e Supports up to 2.5A standard charging and up to 6A (6000mA) maximum fast charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Standard dimensions (21.15 ± 0.1mm diameter × 70.52 ± 0.15mm height) with flat top terminal, ideal for spot-welded packs and modular battery sleds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or bulk pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, low internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e INR21700-50S (50S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType Capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Capacity:\u003c\/strong\u003e 4800mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V – 3.7V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Charging Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinal Discharge Voltage:\u003c\/strong\u003e 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Current Output Constant (Continuous):\u003c\/strong\u003e 25A (up to 45A temperature-monitored up to 80°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Current:\u003c\/strong\u003e 0.xx – 2.5A (2500mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Current:\u003c\/strong\u003e 6A (6000mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e No (Unprotected industrial cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 21.15 mm ± 0.1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 70.52 mm ± 0.15 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 72 g ± 1 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Cordless power tools, electric bicycles, e-scooters, electric skateboards, high-output flashlights, robotics, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-50S 5000mAh 25A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Tool Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding heavy-duty cordless power tool battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Modules:\u003c\/strong\u003e Ideal for 36V or 48V auxiliary modules, robotics, and DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – Mobility \u0026amp; Energy Modules:\u003c\/strong\u003e Tailored for high-performance electric bike packs, e-scooters, and portable power stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.2V per cell or discharge below 2.5V per cell.\u003c\/li\u003e\n\u003cli\u003eDo not exceed cell surface temperature of 80°C during heavy continuous discharge.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 50S cells with true 5000mAh capacity and 25A high-drain output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance under demanding operational loads\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for contractors, e-mobility builders, DIY pack fabricators, and torch enthusiasts demanding industry-leading 5000mAh capacity and 25A continuous output for high-drain cordless tools, electric transport, robotics, and custom energy modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung INR21700-50S - 5000mAh  BATTERY","offer_id":46145662648483,"sku":"INR21700-50S-5000mAh-1PCS","price":23.64,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung INR21700-50S - 5000mAh  BATTERY","offer_id":46145662681251,"sku":"INR21700-50S-5000mAh-10PCS","price":76.47,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung INR21700-50S - 5000mAh  BATTERY","offer_id":46145662714019,"sku":"INR21700-50S-5000mAh-20PCS","price":135.18,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung INR21700-50S - 5000mAh  BATTERY","offer_id":46145662746787,"sku":"INR21700-50S-5000mAh-50PCS","price":311.3,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung INR21700-50S - 5000mAh  BATTERY","offer_id":46145662779555,"sku":"INR21700-50S-5000mAh-100PCS","price":604.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_ebd7247b-238f-407c-8b92-c41321fc1f9a.jpg?v=1790604201"},{"product_id":"samsung-inr21700-58e-5500mah-11a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-58E 5500mAh 11A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left: 3px solid #d9d9d9; padding: 14px 18px; margin-bottom: 22px;\"\u003e\n\u003cp style=\"margin: 0 0 12px; font-size: 18px; font-weight: bold; color: #1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" rel=\"noopener\" style=\"color: #d64224; text-decoration: underline;\" target=\"_blank\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-58E ultra-high capacity 5500mAh 3.64V lithium-ion cells for your electric mobility, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width: 100%; height: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-58E 5500mAh 11A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e represents the cutting edge of energy density in the 21700 form factor. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5500mAh typical capacity (5330mAh minimum) on a 3.64V nominal platform with a reliable 11A constant continuous discharge rating. Engineered for maximum runtime per charge, long cycle life, and excellent thermal stability, the 58E is the premier high-capacity power cell for electric bicycles (e-bikes), electric scooters, long-range LED torches, robotics, and custom DIY battery packs.\u003c\/p\u003e\n\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 58E Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell engineered by Samsung SDI for class-leading energy density and endurance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11A Constant Continuous Discharge:\u003c\/strong\u003e Delivers true 11A continuous current output for dependable energy delivery in electric mobility and power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5500mAh Ultra-High Capacity:\u003c\/strong\u003e 5500mAh typical (5330mAh minimum) offers exceptional operating runtime for long-distance transport and lighting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCC-CV Fast Charging Support:\u003c\/strong\u003e Charges to 4.20V with up to 5,500mA maximum charging constant current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Bare Cell Format:\u003c\/strong\u003e Flat-top design (21.78 mm maximum diameter × 71.0 mm maximum height) optimized for spot-welded custom battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-58E (58E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e None (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Capacity:\u003c\/strong\u003e 5500mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Capacity:\u003c\/strong\u003e 5330mAh (at 0.2C discharge to 2.5V after standard charge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e ≤ 3.636V (3.64V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Constant Current:\u003c\/strong\u003e 5,500mA (5.5A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.50V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Maximum Discharge Current:\u003c\/strong\u003e 11A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e 1 year: -20°C to 23°C; 3 months: -20°C to 45°C; 1 month: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Dimensions:\u003c\/strong\u003e Diameter: 21.78 mm (max) × Length: 71.0 mm (max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (Max.):\u003c\/strong\u003e 74 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSamsung INR21700-58E 5500mAh 11A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Small Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding portable power banks and handheld devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Auxiliary \u0026amp; Mobility Modules:\u003c\/strong\u003e Ideal for 24V\/36V auxiliary modules, robotics, and compact DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Tailored for ultra-high capacity 36V\/48V electric bike packs, e-scooters, and portable energy stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Pack Assembly:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\n\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\n\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.20V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\u003cli\u003eNever exceed the maximum continuous discharge current of 11A.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; special insulated battery cases are recommended.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 58E cells with authentic 5500mAh capacity and 11A continuous output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance and high energy density\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\u003cp\u003eEngineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5500mAh capacity, reliable 11A continuous output, and long cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung    Samsung INR21700-58E 5500mAh   BATTERY","offer_id":46147615326371,"sku":"INR21700-58E-5500mAh -1PCS","price":23.91,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung    Samsung INR21700-58E 5500mAh   BATTERY","offer_id":46147615359139,"sku":"INR21700-58E-5500mAh -10PCS","price":79.21,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung    Samsung INR21700-58E 5500mAh   BATTERY","offer_id":46147615391907,"sku":"INR21700-58E-5500mAh -20PCS","price":140.66,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung    Samsung INR21700-58E 5500mAh   BATTERY","offer_id":46147615424675,"sku":"INR21700-58E-5500mAh -50PCS","price":324.99,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung    Samsung INR21700-58E 5500mAh   BATTERY","offer_id":46147615457443,"sku":"INR21700-58E-5500mAh -100PCS","price":632.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/3_6a3b469c-148e-4486-9846-b0e390bbdbba.png?v=1790646119"},{"product_id":"samsung-inr21700-40t-4000mah-35a-li-ion-battery-for-power-tools-e-bikes-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-40T 4000mAh 35A Li-ion Battery for Power Tools, E-Bikes \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-40T ultra-high drain lithium-ion cells for your power tools, electric mobility, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-40T 4000mAh 35A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e (40T \/ 40T5) is an elite high-drain 21700 cylindrical power cell engineered for demanding high-current applications. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a minimum 4000mAh standard capacity at 3.6V nominal platform (4.20V max charge) with an impressive 35A continuous discharge rating without temperature cut (up to 45A with an 80°C thermal cut-off). It is the premier choice for high-draw cordless power tools, electric skateboards, e-bikes, scooters, high-lumen flashlights, and custom multi-cell DIY battery packs requiring massive current delivery and robust cycle life.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 40T Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell (40T \/ 40T5) renowned for low internal resistance and massive continuous power delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e35A Continuous Discharge Rating:\u003c\/strong\u003e Delivers true 35A continuous discharge without temperature cutoff (and up to 45A with 80°C surface thermal control)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh High Capacity:\u003c\/strong\u003e Minimum 4000mAh standard discharge capacity (at 0.2C \/ 800mA) and minimum 3900mAh rated capacity at 10A discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Rated Charging:\u003c\/strong\u003e Supports 2A standard charge (approx. 180 mins) and rapid 6A rated charging (approx. 70 mins to full charge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Cycle Life \u0026amp; Storage Recovery:\u003c\/strong\u003e Retains ≥2400mAh after 250 harsh cycles (6A charge \/ 35A discharge at 25°C), and ≥3510mAh recovery after 30 days storage at 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions (21.22mm max diameter × 70.30mm max height) with flat top terminal, ideal for spot-welded packs and modular battery sleds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or bulk pack fabrication\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Variant:\u003c\/strong\u003e INR21700-40T (40T \/ 40T5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Terminal \/ Form Factor:\u003c\/strong\u003e Flat Top (Unprotected industrial cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Discharge Capacity:\u003c\/strong\u003e Minimum 4000mAh (at 0.2C \/ 800mA discharge to 2.5V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Discharge Capacity:\u003c\/strong\u003e Minimum 3900mAh (at 10A discharge to 2.5V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Cut-Off Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-Off Voltage:\u003c\/strong\u003e 2.50V (end-of-discharge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Discharge Current:\u003c\/strong\u003e 35A (without temperature cut, recommended headline rating); 45A with 80°C surface thermal control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Charge:\u003c\/strong\u003e CC-CV, 2A, 4.20V, 200mA cut-off (approx. 180 minutes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Fast Charge:\u003c\/strong\u003e CC-CV, 6A, 4.20V, 100mA cut-off (approx. 70 minutes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle-Life Criterion:\u003c\/strong\u003e ≥2400mAh after 250 cycles (6A charge, 35A discharge to 2.5V at 25°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Recovery:\u003c\/strong\u003e ≥3510mAh after 30 days at 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature:\u003c\/strong\u003e Charge: 0°C to 45°C \/ Discharge: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Temperature Limits:\u003c\/strong\u003e Charge: 0°C to 50°C \/ Discharge: -20°C to 80°C (recommended re-discharge release \u0026lt;60°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 21.22mm max diameter × 70.30mm max height (with tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 70.0g max (approx. 67g nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e No integrated protection circuit (requires device-level or pack BMS protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Cordless power tools, electric bicycles, e-scooters, electric skateboards, high-output flashlights, robotics, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-40T 4000mAh 35A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Tool Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding heavy-duty cordless power tool battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Modules:\u003c\/strong\u003e Ideal for 36V or 48V auxiliary modules, robotics, and DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – Mobility \u0026amp; Energy Modules:\u003c\/strong\u003e Tailored for high-performance electric bike packs, e-scooters, and portable power stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.20V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\u003cli\u003eDo not exceed cell surface temperature of 50°C during charging and 80°C during discharge; allow cell to cool below 60°C before recharging.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 40T cells with true 4000mAh capacity and tested 35A high-drain output\u003c\/li\u003e\n\u003cli\u003eReliable 35A continuous discharge rating under demanding industrial operational loads\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for contractors, e-mobility builders, DIY pack fabricators, and enthusiasts demanding class-leading 35A continuous output and 4000mAh capacity for high-drain cordless tools, electric transport, robotics, and custom energy modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung  INR2170040T 21700 3.6V 4000mAh BATTERY","offer_id":46147624665251,"sku":"INR21700-40T-4000mAh-1PCS","price":22.42,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung  INR2170040T 21700 3.6V 4000mAh BATTERY","offer_id":46147624698019,"sku":"INR21700-40T-4000mAh-10PCS","price":58.22,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung  INR2170040T 21700 3.6V 4000mAh BATTERY","offer_id":46147624730787,"sku":"INR21700-40T-4000mAh-20PCS","price":104.76,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung  INR2170040T 21700 3.6V 4000mAh BATTERY","offer_id":46147624763555,"sku":"INR21700-40T-4000mAh-50PCS","price":244.38,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung  INR2170040T 21700 3.6V 4000mAh BATTERY","offer_id":46147624796323,"sku":"INR21700-40T-4000mAh-100PCS","price":477.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/5_5b43a872-fe3d-44b9-bcbc-c078f4a2e5d6.png?v=1790599159"},{"product_id":"samsung-inr21700-50e-5000mah-9-8a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-50E 5000mAh 9.8A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-50E high-capacity 5000mAh lithium-ion cells for your electric mobility, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-50E 5000mAh 9.8A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an industry-benchmark high-capacity 21700 cylindrical power cell. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers a massive 5000mAh typical capacity (4753mAh minimum) on a 3.6V–3.7V nominal platform with a dependable 9.8A constant continuous discharge rating. As 21700 format batteries rapidly replace older 18650 cells across modern applications, the 50E provides maximum energy density and runtime for electric bicycles, e-scooters, long-range LED torches, robotics, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 50E Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell renowned worldwide for outstanding 5000mAh energy density and reliable cycle life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9.8A Constant Continuous Discharge:\u003c\/strong\u003e Engineered to sustain a reliable 9.8A continuous current output for energy-focused electronics and multi-cell battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5000mAh Ultra-High Capacity:\u003c\/strong\u003e 5000mAh typical (4753mAh minimum) offers exceptional operating runtime per charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCC-CV Charging Support:\u003c\/strong\u003e Supports 2.45A standard charging current with up to 4.9A maximum charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of 21.25 ± 0.1 mm diameter × 70.8 ± 0.15 mm height with flat terminals, ideal for spot-welded custom packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-50E (50E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e No (Unprotected industrial bare cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType Capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Capacity:\u003c\/strong\u003e 4753mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V – 3.7V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging End Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Constant Current Output:\u003c\/strong\u003e 9.8A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Current:\u003c\/strong\u003e 2.45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Current:\u003c\/strong\u003e 4.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 21.25 mm ± 0.1 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 70.8 mm ± 0.15 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 69 g ± 1 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-50E 5000mAh 9.8A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Small Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding portable power banks and handheld devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Auxiliary \u0026amp; Mobility Modules:\u003c\/strong\u003e Ideal for 24V\/36V auxiliary modules, robotics, and compact DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Tailored for high-capacity 36V\/48V electric bike packs, e-scooters, and portable energy stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Pack Assembly:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.2V per cell or discharge below 2.5V per cell.\u003c\/li\u003e\n\u003cli\u003eNever exceed the maximum continuous discharge current of 9.8A.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 50E cells with authentic 5000mAh capacity and 9.8A continuous output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance and high energy density\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5000mAh capacity and reliable 9.8A continuous output for electric bikes, e-scooters, robotics, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung INR21700-50E  5000mAh BATTERY","offer_id":46147679846563,"sku":"INR21700-50E-5000mAh-1PCS","price":24.61,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung INR21700-50E  5000mAh BATTERY","offer_id":46147679879331,"sku":"INR21700-50E-5000mAh-10PCS","price":86.21,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung INR21700-50E  5000mAh BATTERY","offer_id":46147679912099,"sku":"INR21700-50E-5000mAh-20PCS","price":154.65,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung INR21700-50E  5000mAh BATTERY","offer_id":46147679944867,"sku":"INR21700-50E-5000mAh-50PCS","price":359.97,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung INR21700-50E  5000mAh BATTERY","offer_id":46147679977635,"sku":"INR21700-50E-5000mAh-100PCS","price":702.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_53b99401-1faf-483d-8297-aadc9e9b3742.jpg?v=1790606103"},{"product_id":"samsung-inr21700-45t-4500mah-35a-li-ion-battery-for-power-tools-rc-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-45T 4500mAh 35A Li-ion Battery for Power Tools, RC \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-45T high-capacity 4500mAh, ultra-high drain lithium-ion cells for your high-power cordless tools, RC models, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-45T 4500mAh 35A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an ultra-high performance 21700 cylindrical power cell manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading. Designed for extreme current applications, this flat-top bare cell delivers a generous 4500mAh typical capacity (4400mAh minimum) on a 3.6V nominal platform with a massive 35A continuous discharge capability without thermal cut-off (and up to 50A continuous when monitored with an 80°C temperature cut). Combining sustained high-power output, rapid charging capability (up to 6A continuous \/ 9A step charge), and exceptional voltage retention under heavy loads, it is the premier choice for high-draw cordless power tools, RC models, electric skateboards, e-bikes, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 45T Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical power cell engineered for demanding high-drain industrial and hobby applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e35A Constant Continuous Discharge:\u003c\/strong\u003e Delivers true 35A constant current without temperature cut-off (and up to 50A continuous with 80°C thermal monitoring)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4500mAh High Capacity:\u003c\/strong\u003e Typical 4500mAh (4400mAh minimum) capacity balances extreme discharge power with long runtime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Charging Capability:\u003c\/strong\u003e Supports up to 6A continuous rated charge (full charge in approx. 75 minutes) and 9A step charging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Thermal \u0026amp; Cycle Stability:\u003c\/strong\u003e Operates across a wide temperature range (-20°C to 60°C discharge) with proven cycle retention under high-amp discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Bare Cell:\u003c\/strong\u003e Flat-top form factor (Max 21.35mm diameter × 70.62mm height) optimized for spot-welded custom battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages to suit single cell replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, low internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-45T (45T)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e No (Unprotected industrial bare cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Discharge Capacity:\u003c\/strong\u003e 4500mAh (0.2C \/ 0.9A discharge to 2.5V @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Discharge Capacity:\u003c\/strong\u003e 4400mAh (Rated min. 4300mAh at 10A discharge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Charge:\u003c\/strong\u003e CCCV, 2.25A (0.5C), 4.20V, 225mA cut-off (approx. 150 min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Fast Charge:\u003c\/strong\u003e CCCV, 6A, 4.20V, 100mA cut-off (approx. 75 min)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charge Current:\u003c\/strong\u003e 6A (continuous charge) \/ 9A (for step charge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.5V (End of discharge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge:\u003c\/strong\u003e 35A (without temperature cut) \/ 50A (with 80°C temperature cut)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e ≥ 2700mAh after 250 cycles at 35A discharge (or after 100 cycles at 50A discharge with 80°C cut-off)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: -10°C to 60°C; Discharge: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e 1 year: -20°C to 23°C; 3 months: -20°C to 45°C; 1 month: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Cell Dimensions:\u003c\/strong\u003e Diameter: Max. 21.35 mm × Height: Max. 70.62 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Max. 72.0 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Cordless power tools, RC models, high-drain electric skateboards, e-bikes, robotics, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-45T 4500mAh 35A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for tool testing, flashlight upgrade, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Cordless Tool Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding heavy-duty power tool battery packs (drills, grinders, saws)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Modules:\u003c\/strong\u003e Ideal for RC models, robotics, and compact high-drain DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – Mobility \u0026amp; Energy Modules:\u003c\/strong\u003e Tailored for high-performance electric skateboards, e-bikes, and portable power stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.20V per cell or discharge below 2.5V per cell.\u003c\/li\u003e\n\u003cli\u003eDo not exceed cell surface temperature of 80°C during heavy continuous discharge.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 45T cells with true 4500mAh capacity and 35A\/50A high-drain output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance under demanding operational loads\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for contractors, RC hobbyists, e-mobility builders, and DIY pack fabricators demanding high 4500mAh capacity and extreme 35A\/50A continuous discharge for high-power cordless tools, electric skateboards, robotics, and custom energy modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung INR21700-45T  4500mAh  50A BATTERY","offer_id":46147748626595,"sku":"INR21700-45T-4500mAh-1PCS","price":23.97,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung INR21700-45T  4500mAh  50A BATTERY","offer_id":46147748659363,"sku":"INR21700-45T-4500mAh-10PCS","price":79.82,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung INR21700-45T  4500mAh  50A BATTERY","offer_id":46147748692131,"sku":"INR21700-45T-4500mAh-20PCS","price":141.87,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung INR21700-45T  4500mAh  50A BATTERY","offer_id":46147748724899,"sku":"INR21700-45T-4500mAh-50PCS","price":328.03,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung INR21700-45T  4500mAh  50A BATTERY","offer_id":46147748757667,"sku":"INR21700-45T-4500mAh-100PCS","price":638.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_65e8c949-5de9-47d2-b0c5-eaaf032272ec.png?v=1790643204"},{"product_id":"samsung-inr21700-53g-5300mah-15-9a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-53G 5300mAh 15.9A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-53G ultra-high capacity 5300mAh 3.63V lithium-ion cells for your electric mobility, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-53G 5300mAh 15.9A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e (the enhanced next-generation successor to the popular 50G cell) represents the pinnacle of energy density in the 21700 form factor. Manufactured by Samsung SDI and supplied by DXF POWER with strict quality grading, this flat-top unprotected cell delivers an industry-leading 5300mAh typical capacity (5140mAh minimum) on a 3.63V nominal platform with a robust 3C (15.9A \/ 15,900mA) maximum continuous discharge rating. Engineered for sustained runtime, exceptional 1,000-cycle life longevity, and reliable thermal stability, the 53G is the ultimate choice for electric bicycles (e-bikes), electric scooters, high-performance LED torches, robotics, solar storage, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 53G Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell engineered in Korea\/Malaysia, offering state-of-the-art 5300mAh energy density\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15.9A (3C) Continuous Discharge:\u003c\/strong\u003e Robust 15,900mA maximum continuous current capability powers demanding electric mobility and portable devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-Leading 5300mAh Capacity:\u003c\/strong\u003e 5300mAh typical (5140mAh minimum) delivers class-leading runtime for long-distance rides and extended illumination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutstanding 1,000+ Cycle Durability:\u003c\/strong\u003e Maintains ≥80% of initial capacity even after 1,000 charge\/discharge cycles under recommended cycling conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast CC-CV Charging Support:\u003c\/strong\u003e Supports 0.33C (1,749mA) standard charging with up to 5,300mA maximum charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of Φ Max 21.30 mm diameter × Max 70.70 mm height with flat top terminal, optimized for spot welding and custom pack builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or bulk battery pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-53G (53G, Ver. 2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e No (Unprotected industrial bare cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Discharge Capacity:\u003c\/strong\u003e 5300mAh (1C = 5,300mA rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Discharge Capacity:\u003c\/strong\u003e 5140mAh (0.2C \/ 1060mA discharge to 2.5V @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.63V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV (constant voltage with limited current)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Charging Current:\u003c\/strong\u003e 0.33C (1,749mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Voltage:\u003c\/strong\u003e 4.2V (4.15V recommended for extended cycle life)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Current:\u003c\/strong\u003e 5,300mA (5.3A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.5V (3.0V recommended for extended cycle life)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge Current:\u003c\/strong\u003e 3C (15,900mA \/ 15.9A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e Capacity ≥ 80% after 1,000 cycles (80% of initial capacity @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to 45°C; Discharge: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e 1 year: -20°C to 23°C; 3 months: -20°C to 45°C; 1 month: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Cell Dimensions:\u003c\/strong\u003e Diameter: Φ Max. 21.30 mm × Height: Max. 70.70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Max. 71.5 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Sites:\u003c\/strong\u003e Korea \u0026amp; Malaysia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, portable energy storage, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-53G 5300mAh 15.9A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Small Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding portable power banks and handheld devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Auxiliary \u0026amp; Mobility Modules:\u003c\/strong\u003e Ideal for 24V\/36V auxiliary modules, robotics, and compact DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Tailored for ultra-high capacity 36V\/48V electric bike packs, e-scooters, and portable energy stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Pack Assembly:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eStandard charging voltage is 4.20V (charge to 4.15V to maximize cycle life).\u003c\/li\u003e\n\u003cli\u003eDischarge cut-off voltage is 2.5V (3.0V recommended for prolonged cycle life).\u003c\/li\u003e\n\u003cli\u003eCharge within 0°C to 45°C; discharge within -20°C to 60°C.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 53G cells with industry-leading 5300mAh capacity and 15.9A continuous output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance and outstanding 1,000+ cycle durability\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding maximum 5300mAh capacity, reliable 15.9A continuous output, and long 1,000-cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS NewSamsung INR21700-53G 5300mAh   BATTERY","offer_id":46148411228323,"sku":"INR21700-53G-5000mAh-1PCS","price":23.36,"currency_code":"USD","in_stock":true},{"title":"10PCS  NewSamsung INR21700-53G 5300mAh   BATTERY","offer_id":46148411261091,"sku":"INR21700-53G-5000mAh-10PCS","price":73.73,"currency_code":"USD","in_stock":true},{"title":"20PCS  NewSamsung INR21700-53G 5300mAh   BATTERY","offer_id":46148411293859,"sku":"INR21700-53G-5000mAh-20PCS","price":129.7,"currency_code":"USD","in_stock":true},{"title":"50PCS NewSamsung INR21700-53G 5300mAh   BATTERY","offer_id":46148411326627,"sku":"INR21700-53G-5000mAh-50PCS","price":297.62,"currency_code":"USD","in_stock":true},{"title":"100PCS  NewSamsung INR21700-53G 5300mAh   BATTERY","offer_id":46148411359395,"sku":"INR21700-53G-5000mAh-100PCS","price":577.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_65c749c8-7203-45d7-b092-29ae0a0f7d19.jpg?v=1790644790"},{"product_id":"samsung-inr21700-50gb-5000mah-15a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"Samsung INR21700-50GB 5000mAh 15A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-50GB high-capacity 3.66V lithium-ion cells for your electric mobility, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-50GB 5000mAh 15A Li-ion Rechargeable Battery\u003c\/strong\u003e is an ultra-high energy density 21700 cylindrical power cell manufactured by Samsung SDI (Korea) and supplied by DXF POWER with strict quality grading. Featuring an impressive 5000mAh typical capacity (4900mAh minimum) on a 3.66V nominal platform, this unprotected flat-top cell provides up to 15A continuous discharge, outstanding cycle stability (maintaining ≥80% capacity after 1,000 cycles), and broad operating temperatures (-30°C to 60°C discharge). It is the ideal high-capacity power solution for electric bicycles (e-bikes), electric scooters, long-runtime LED torches, robotics, solar energy storage, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 50GB Cell:\u003c\/strong\u003e Premium Grade-A 21700 cell engineered in Korea for maximum energy density and exceptional cycle life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5000mAh Ultra-High Capacity:\u003c\/strong\u003e 5000mAh typical (4900mAh minimum) ensures extended runtime in portable electric vehicles and high-drain electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15A Continuous Discharge:\u003c\/strong\u003e Reliable current delivery capable of supporting continuous draw up to 15A without compromising cell longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional 1,000+ Cycle Life:\u003c\/strong\u003e Retains ≥80% of initial capacity even after 1,000 charge\/discharge cycles under recommended cycling conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Operating Range:\u003c\/strong\u003e Discharges reliably from -30°C to 60°C and charges from 0°C to 50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Form Factor:\u003c\/strong\u003e Max dimensions (D) 21.3 × (L) 70.65 mm (±0.15 mm), flat top bare cell design ideal for spot welding and pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages to suit single replacements or volume pack assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart No. \/ Model:\u003c\/strong\u003e Samsung INR21700-50GB (50GB Bare Cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Origin:\u003c\/strong\u003e Made in Korea\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e No (Unprotected industrial bare cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Capacity:\u003c\/strong\u003e 4900mAh (1C = 4900mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.66V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.20 ± 0.03V (4.125V for cycle life)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Current Rate:\u003c\/strong\u003e 0.33C (1617mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Charge Time:\u003c\/strong\u003e 240 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut-off Voltage:\u003c\/strong\u003e 4.2V (4.125V for cycle life) max charge voltage; 2.5V (3.0V for cycle life) discharge cut-off voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge Current:\u003c\/strong\u003e 15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e Capacity ≥ 80% after 1,000 cycles (80% of initial capacity @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to 50°C; Discharge: -30°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Dimensions:\u003c\/strong\u003e Diameter: 21.3 mm × Length: 70.65 mm (±0.15 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (Max.):\u003c\/strong\u003e 72.0 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), e-scooters, electric mobility, high-output flashlights, power tools, robotics, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-50GB 5000mAh 15A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Small Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding portable power banks and handheld devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Auxiliary \u0026amp; Mobility Modules:\u003c\/strong\u003e Ideal for 24V\/36V auxiliary modules, robotics, and compact DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Tailored for high-capacity 36V\/48V electric bike packs, e-scooters, and portable energy stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Pack Assembly:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode.\u003c\/li\u003e\n\u003cli\u003eStandard charging voltage is 4.20V ± 0.03V (charge to 4.125V to maximize cycle life).\u003c\/li\u003e\n\u003cli\u003eDischarge cut-off voltage is 2.5V (3.0V recommended for prolonged cycle life).\u003c\/li\u003e\n\u003cli\u003eCharge within 0°C to 50°C; discharge within -30°C to 60°C.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 50GB cells with true 5000mAh high capacity and 15A continuous output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance and outstanding 1,000+ cycle life\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-mobility builders, DIY pack fabricators, contractors, and flashlight enthusiasts demanding high 5000mAh capacity, reliable 15A continuous output, and long 1,000-cycle durability for electric bikes, e-scooters, robotics, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung INR21700-50GB 5000mAh  BATTERY","offer_id":46148537352355,"sku":"INR21700-50GB-5000mAh-1PCS","price":23.65,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung INR21700-50GB 5000mAh  BATTERY","offer_id":46148537385123,"sku":"INR21700-50GB-5000mAh-10PCS","price":76.65,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung INR21700-50GB 5000mAh  BATTERY","offer_id":46148537417891,"sku":"INR21700-50GB-5000mAh-20PCS","price":135.55,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung INR21700-50GB 5000mAh  BATTERY","offer_id":46148537450659,"sku":"INR21700-50GB-5000mAh-50PCS","price":312.22,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung INR21700-50GB 5000mAh  BATTERY","offer_id":46148537483427,"sku":"INR21700-50GB-5000mAh-100PCS","price":600.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_d14fc9af-3b3f-4a46-a354-29b522f2cc69.jpg?v=1755673044"},{"product_id":"lg-m58t-inr21700-m58t-5800mah-12-5a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"LG M58T INR21700-M58T 5800mAh 12.5A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine LG Chem M58T INR21700-M58T ultra-high capacity 5800mAh 12.5A continuous lithium-ion cells for electric bicycles, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eLG M58T INR21700-M58T 5800mAh 12.5A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an industry-leading ultra-high-capacity 21700 cylindrical power cell manufactured by LG Chem and supplied by DXF POWER with strict quality grading. Boasting an incredible 5800mAh nominal capacity (5570mAh minimum) on a 3.59V nominal platform, this flat-top bare cell delivers up to 12.5A constant continuous discharge current across a wide temperature spectrum (-20°C to +70°C). Designed for applications demanding maximum energy density and extended operating time, the LG M58T represents the next generation in cylindrical lithium-ion power for long-range electric bicycles, scooters, high-lumen LED torches, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine LG Chem M58T Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical power cell delivering massive energy density in standard 21700 dimensions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5800mAh Ultra-High Capacity:\u003c\/strong\u003e Remarkable 5800mAh nominal capacity (5570mAh minimum) delivers exceptional endurance for prolonged operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5A Constant Continuous Discharge:\u003c\/strong\u003e Delivers true 12.5A continuous current output without thermal cut-off, optimized for sustained power draw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.59V Nominal Platform:\u003c\/strong\u003e Stable discharge curve with standard 4.20V charging and 2.50V discharge cut-off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Thermal Operating Range:\u003c\/strong\u003e Performs reliably from -20°C up to +70°C discharge, ideal for demanding outdoor environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of 21.8 mm diameter × 71.0 mm height and 73.2 g max weight, ideal for precision spot welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for individual replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e LG Chem (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-M58T \/ INR21700M58T (M58T)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 5800mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Capacity:\u003c\/strong\u003e 5570mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.59V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge Current:\u003c\/strong\u003e 12.5A (-20°C to +70°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-Off Voltage:\u003c\/strong\u003e 2.50V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Charge Current:\u003c\/strong\u003e 1120mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charge Current:\u003c\/strong\u003e 2.7A (4.20V cut off, 10°C–50°C) \/ 5.0A (4.0V cut off, 10°C–40°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to 50°C; Discharge: -20°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: 21.8 mm × Height: 71.0 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Max. 73.2 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, portable energy storage, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLG M58T INR21700-M58T 5800mAh 12.5A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Portable Light \u0026amp; Device Packs:\u003c\/strong\u003e Ideal for high-lumen multi-cell torches, camping lanterns, and small electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Compact Energy Modules:\u003c\/strong\u003e Perfect for small portable power banks, robotics, and auxiliary power supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Rebuilds:\u003c\/strong\u003e Sized for building and refurbishing standard 36V\/48V electric bicycle packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\u003cli\u003eNever exceed the maximum continuous discharge current of 12.5A.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; practical storage in an insulated battery case is essential.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A LG Chem M58T cells with true 5800mAh ultra-high capacity and 12.5A continuous output\u003c\/li\u003e\n\u003cli\u003eNext-generation energy density tailored for maximum runtime and range\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-bike builders, electric scooter riders, flashlight enthusiasts, and DIY pack fabricators demanding maximum 5800mAh ultra-high capacity and stable 12.5A continuous discharge for long-range electric mobility, high-lumen lighting, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted LG Chem performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New LGM58T 5800mAh BATTERY","offer_id":46151279739043,"sku":"LGM58T-5800mAh-1PCS","price":23.12,"currency_code":"USD","in_stock":true},{"title":"10PCS New LGM58T 5800mAh BATTERY","offer_id":46151279771811,"sku":"LGM58T-5800mAh-10PCS","price":71.3,"currency_code":"USD","in_stock":true},{"title":"20PCS New LGM58T 5800mAh BATTERY","offer_id":46151279804579,"sku":"LGM58T-5800mAh-20PCS","price":124.84,"currency_code":"USD","in_stock":true},{"title":"50PCS New LGM58T 5800mAh BATTERY","offer_id":46151279837347,"sku":"LGM58T-5800mAh-50PCS","price":285.45,"currency_code":"USD","in_stock":true},{"title":"100PCS New LGM58T 5800mAh BATTERY","offer_id":46151279870115,"sku":"LGM58T-5800mAh-100PCS","price":553.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_f4cc3eab-70df-44cf-86e7-e0132c5eb84c.png?v=1790683993"},{"product_id":"lg-m50lt-inr21700m50lt-5000mah-14a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","title":"LG M50LT INR21700M50LT 5000mAh 14A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine LG Chem M50LT INR21700M50LT ultra-high capacity 5000mAh 14A continuous lithium-ion cells for electric bicycles, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eLG M50LT INR21700M50LT 5000mAh 14A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an industry-benchmark high-energy-density 21700 cylindrical power cell manufactured by LG Chem and supplied by DXF POWER with strict quality grading. Engineered for prolonged endurance in electric mobility, energy storage, and premium consumer electronics, this flat-top bare cell delivers a massive 5000mAh nominal capacity on a 3.6V nominal platform with a dependable 14A constant continuous discharge rating. Celebrated for its remarkable cycle life, low internal impedance, and excellent thermal stability across wide operating temperatures (-20°C to +60°C), the LG M50LT is the premier choice for long-range electric bicycles, scooters, high-lumen LED torches, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine LG Chem M50LT Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical power cell recognized for premium energy density and long-term cycle durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5000mAh Ultra-High Capacity:\u003c\/strong\u003e True 5000mAh nominal capacity delivers exceptional runtime for electric vehicles and heavy-duty portable devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14A Constant Continuous Discharge:\u003c\/strong\u003e Reliable 14A continuous discharge current without thermal cut-off, optimized for sustained power draw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.6V Nominal Platform:\u003c\/strong\u003e Efficient energy delivery with standard 4.20V charging and 2.50V discharge cut-off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Operates reliably from -20°C up to +60°C discharge, ensuring consistent power in diverse climates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of max 21.0 mm diameter × 70.0 mm height and typical 69.0 g weight, ideal for precision spot welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for individual replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e LG Chem (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700M50LT \/ INR21700-M50LT (M50LT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge Current:\u003c\/strong\u003e 14A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-Off Voltage:\u003c\/strong\u003e 2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e Constant Current \/ Constant Voltage (CC-CV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to +50°C; Discharge: -20°C to +60°C; Storage: -20°C to +50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Max. 21.0 mm Diameter × 70.00 mm Height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Typical 69.0 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, portable energy stations, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLG M50LT INR21700M50LT 5000mAh 14A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Portable Light \u0026amp; Device Packs:\u003c\/strong\u003e Ideal for high-lumen multi-cell torches, camping lanterns, and small electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Compact Energy Modules:\u003c\/strong\u003e Perfect for small portable power banks, robotics, and auxiliary power supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Rebuilds:\u003c\/strong\u003e Sized for building and refurbishing standard 36V\/48V electric bicycle packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\u003cli\u003eNever exceed the maximum continuous discharge current of 14A.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; practical storage in an insulated battery case is essential.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A LG Chem M50LT cells with true 5000mAh capacity and 14A continuous output\u003c\/li\u003e\n\u003cli\u003eIndustry-leading energy density tailored for long-range electric mobility\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-bike builders, electric scooter riders, flashlight enthusiasts, and DIY pack fabricators demanding dependable 5000mAh high capacity and stable 14A continuous discharge for long-range electric mobility, high-lumen lighting, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted LG Chem performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New LG INR21700-M50LT 5000mAh BATTERY","offer_id":46158496989347,"sku":"INR21700-M50LT-5000mAh-1PCS","price":23.12,"currency_code":"USD","in_stock":true},{"title":"10PCS New LG INR21700-M50LT 5000mAh BATTERY","offer_id":46158497022115,"sku":"INR21700-M50LT-5000mAh-10PCS","price":71.3,"currency_code":"USD","in_stock":true},{"title":"20PCS New LG INR21700-M50LT 5000mAh BATTERY","offer_id":46158497054883,"sku":"INR21700-M50LT-5000mAh-20PCS","price":124.84,"currency_code":"USD","in_stock":true},{"title":"50PCS New LG INR21700-M50LT 5000mAh BATTERY","offer_id":46158497087651,"sku":"INR21700-M50LT-5000mAh-50PCS","price":285.45,"currency_code":"USD","in_stock":true},{"title":"100PCS New LG INR21700-M50LT 5000mAh BATTERY","offer_id":46158497120419,"sku":"INR21700-M50LT-5000mAh-100PCS","price":553.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_d8569232-6080-48eb-a199-918e53e26c20.png?v=1790683378"},{"product_id":"sony-vtc6a-us21700vtc6a-4000mah-30a-li-ion-battery-for-power-tools-rc-diy-battery-packs-1-100-pcs","title":"Sony VTC6A US21700VTC6A 4000mAh 30A Li-ion Battery for Power Tools, RC \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Sony \/ Murata VTC6A US21700VTC6A ultra-high drain 4000mAh 30A lithium-ion cells for your power tools, RC models, electric mobility, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSony VTC6A US21700VTC6A 4000mAh 30A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an industry-benchmark high-capacity, high-drain 21700 cylindrical power cell manufactured by Sony \/ Murata and supplied by DXF POWER with strict quality grading. Designed for extreme continuous output, this flat-top bare cell delivers a generous 4000mAh nominal capacity on a 3.6V platform with a massive 30A constant continuous discharge rating (and up to 40A continuous when monitored with an 80°C temperature cut). Renowned for its ultra-low internal resistance (~0.03 Ω), outstanding voltage retention under heavy amp draw, and robust thermal stability, the VTC6A is the premier choice for heavy-duty cordless power tools, RC models, electric skateboards, e-bikes, robotics, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Sony \/ Murata VTC6A Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical power cell acclaimed for its superior balance of 4000mAh capacity and high-drain power delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30A Continuous Discharge:\u003c\/strong\u003e Delivers true 30A constant continuous discharge current without thermal cut-off (and up to 40A continuous with 80°C thermal protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4000mAh High Capacity:\u003c\/strong\u003e 4000mAh nominal capacity provides substantial runtime for power-hungry devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Internal Resistance:\u003c\/strong\u003e Measured at approx. 0.03 Ω for minimal voltage sag and efficient energy delivery under high load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of 21.2 mm diameter × 69.6 mm length with metal bottom and flat top terminal, optimized for custom spot welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Sony \/ Murata (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e US21700VTC6A (VTC6A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 4000mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Continuous Discharge Current:\u003c\/strong\u003e 30A (up to 40A with 80°C temperature cut)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.2V (Termination current: 0.1A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e Constant Current \/ Constant Voltage (CC-CV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalculated Internal Resistance:\u003c\/strong\u003e Approx. 0.03 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: 21.2 mm × Length: 69.6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e 72.1 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Cordless power tools, RC models, electric skateboards, e-bikes, robotics, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSony VTC6A US21700VTC6A 4000mAh 30A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for tool testing, flashlight upgrade, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Cordless Tool Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding heavy-duty cordless power tool battery packs (drills, grinders, saws)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Modules:\u003c\/strong\u003e Ideal for RC models, robotics, and compact high-drain DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – Mobility \u0026amp; Energy Modules:\u003c\/strong\u003e Tailored for high-performance electric skateboards, e-bikes, and portable energy stations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Master Builder Bulk Set:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\u003cli\u003eDo not exceed cell surface temperature of 80°C during heavy continuous discharge.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; always store in an insulated battery case.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Sony \/ Murata VTC6A cells with true 4000mAh capacity and 30A\/40A high-drain output\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance under demanding operational loads\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for contractors, RC hobbyists, e-mobility builders, and DIY pack fabricators demanding dependable 4000mAh capacity and extreme 30A\/40A continuous discharge for high-power cordless tools, electric skateboards, robotics, and custom energy modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Sony 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Sony 21700 VTC6A 4000mAh - 40A Lithium ion Cell  BATTERY","offer_id":46161201430691,"sku":"US21700VTC6A-4000mAh-1PCS","price":31.45,"currency_code":"USD","in_stock":true},{"title":"10PCS New Sony 21700 VTC6A 4000mAh - 40A Lithium ion Cell  BATTERY","offer_id":46161201463459,"sku":"US21700VTC6A-4000mAh-10PCS","price":154.65,"currency_code":"USD","in_stock":true},{"title":"20PCS New Sony 21700 VTC6A 4000mAh - 40A Lithium ion Cell  BATTERY","offer_id":46161201496227,"sku":"US21700VTC6A-4000mAh-20PCS","price":291.53,"currency_code":"USD","in_stock":true},{"title":"50PCS New Sony 21700 VTC6A 4000mAh - 40A Lithium ion Cell  BATTERY","offer_id":46161201528995,"sku":"US21700VTC6A-4000mAh-50PCS","price":702.18,"currency_code":"USD","in_stock":true},{"title":"100PCS New Sony 21700 VTC6A 4000mAh - 40A Lithium ion Cell  BATTERY","offer_id":46161201561763,"sku":"US21700VTC6A-4000mAh-100PCS","price":1386.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/1_388d6eee-abc6-4b11-abca-234b7093f876.jpg?v=1790664430"},{"product_id":"samsung-inr21700-58e-5500mah-11a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs-副本","title":"Samsung INR21700-48X 4800mAh 9.6A Li-ion Battery for E-Bikes, Flashlights \u0026 DIY Battery Packs (1-100 PCS)","description":"\u003cdiv style=\"border-left:3px solid #d9d9d9;padding:14px 18px;margin-bottom:22px;\"\u003e\n\u003cp style=\"margin:0 0 12px;font-size:18px;font-weight:700;color:#1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\" target=\"_blank\" rel=\"noopener\" style=\"color:#d64224;text-decoration:underline;\"\u003ehttps:\/\/dxf-hobby.store\/pages\/china-warehouse-shipping\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine Samsung INR21700-48X ultra-long cycle life 4800mAh 3.64V lithium-ion cells for your electric mobility, high-lumen flashlights, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" alt=\"DXF global warehouse delivery network\" style=\"width:100%;height:auto;\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSamsung INR21700-48X 4800mAh 9.6A Continuous Discharge Li-ion Rechargeable Battery\u003c\/strong\u003e is an ultra-long cycle life 21700 cylindrical power cell engineered by Samsung SDI and supplied by DXF POWER with strict quality grading. Designed for applications requiring unprecedented longevity, this flat-top unprotected bare cell delivers a 4800mAh typical capacity (4650mAh minimum) on a 3.64V nominal platform with a dependable 9.6A (2C) continuous discharge rating. Featuring an extraordinary \u003cstrong\u003e3,000+ cycle life\u003c\/strong\u003e (retaining ≥70% capacity after 3,000 full cycles), the 48X is the ultimate long-term investment for electric bicycles (e-bikes), electric scooters, solar energy storage systems, robotics, LED flashlights, and custom DIY battery packs.\u003c\/p\u003e\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" title=\"Watch DXF Batteries in Action\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Samsung SDI 48X Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell engineered by Samsung SDI for exceptional durability and long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmatched 3,000+ Cycle Life:\u003c\/strong\u003e Retains ≥70% of initial capacity even after 3,000 charge\/discharge cycles under recommended cycling conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4800mAh High Capacity:\u003c\/strong\u003e Typical 4800mAh (4650mAh minimum) capacity ensures prolonged runtime and consistent energy output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9.6A Continuous Discharge:\u003c\/strong\u003e Delivers reliable 9.6A (2C) continuous current output for electric mobility and multi-cell pack applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Bare Cell Format:\u003c\/strong\u003e Dimensions of Φ 21.15 ± 0.20 mm diameter × 70.65 ± 0.15 mm height with flat top terminals, optimized for spot welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCC-CV Charging Support:\u003c\/strong\u003e Charges reliably to 4.20V (or 4.10V to achieve maximum 3,000+ cycle life) with 0.33C (1,584mA) standard charging current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for single cell replacements or large-scale pack fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrict Factory Quality Testing:\u003c\/strong\u003e Cells are inspected for voltage balance, internal resistance, and capacity consistency across every batch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e Samsung SDI (Supplied by DXF POWER)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-48X (48X, tube cell)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Type:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e None (Unprotected industrial bare cell; requires compatible device-level or pack-level protection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Discharge Capacity:\u003c\/strong\u003e 4800mAh (at 0.2C \/ 960mA discharge to 2.5V @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Discharge Capacity:\u003c\/strong\u003e 4650mAh (1C = 4,800mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e Typ. 3.64V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Charging Voltage:\u003c\/strong\u003e 4.2V (4.10V recommended for maximum 3,000-cycle life)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e CC-CV (constant voltage with limited current)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging Current Rate:\u003c\/strong\u003e 0.33C (1,584mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-off Voltage:\u003c\/strong\u003e 2.5V (3.0V recommended for cycle life)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous Discharge Current:\u003c\/strong\u003e 9.6A (2C) continuous \/ 4.8A (1C) rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e Capacity ≥ 70% after 3,000 cycles (Charge: 1.0C \/ 4,800mA to 4.10V; Discharge: 1.0C \/ 4,800mA to 3.0V @ RT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Charge: 0°C to 50°C; Discharge: -30°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e 1 year: -20°C to 25°C; 3 months: -40°C to 45°C; 1 month: -40°C to 60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: Φ 21.15 ± 0.20 mm × Height: 70.65 ± 0.15 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e 68.0 g ± 1.5 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, high-lumen flashlights, robotics, solar energy storage systems, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSamsung INR21700-48X 4800mAh 9.6A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 PCS – Quick Replacement \u0026amp; Testing:\u003c\/strong\u003e Single cell for flashlight upgrade, tool testing, or individual cell repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 PCS – Small Pack Rebuilds:\u003c\/strong\u003e Perfect for rebuilding portable power banks and handheld devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 PCS – Auxiliary \u0026amp; Mobility Modules:\u003c\/strong\u003e Ideal for 24V\/36V auxiliary modules, robotics, and compact DIY power packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 PCS – Long-Life E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Tailored for 3,000-cycle high-end 36V\/48V electric bike packs and solar storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Pack Assembly:\u003c\/strong\u003e Best value for workshops, custom pack assemblers, and volume battery builders\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\u003cp\u003eEvery cell batch supplied by DXF POWER is covered by a \u003cstrong\u003e180-day manufacturer warranty\u003c\/strong\u003e against defects in materials and craftsmanship. Our technical support team is always available to assist with charging parameters, pack layout recommendations, and safety practices.\u003c\/p\u003e\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V (or 4.10V for extended 3,000-cycle longevity).\u003c\/li\u003e\n\u003cli\u003eNever charge above 4.20V per cell or discharge below 2.5V per cell.\u003c\/li\u003e\n\u003cli\u003eCharge within 0°C to 50°C; discharge within -30°C to 60°C.\u003c\/li\u003e\n\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\u003cli\u003eNever carry loose 21700 batteries in pockets, bags, or purses with metal objects like keys or coins; special insulated battery cases are recommended.\u003c\/li\u003e\n\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\u003cli\u003eStore batteries at 3.60V–3.85V per cell in a cool, dry, well-ventilated location away from direct sunlight.\u003c\/li\u003e\n\u003cli\u003eWhen building multi-cell packs, always integrate a quality Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Grade-A Samsung SDI 48X cells with industry-benchmark 3,000-cycle longevity and 4800mAh capacity\u003c\/li\u003e\n\u003cli\u003eTested continuous discharge performance and superior thermal endurance\u003c\/li\u003e\n\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cp\u003eEngineered for e-mobility builders, solar storage developers, DIY pack fabricators, and torch enthusiasts demanding reliable 4800mAh capacity, 9.6A continuous output, and extraordinary 3,000-cycle life for electric bikes, e-scooters, robotics, and custom energy storage modules.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003ePower your projects with trusted Samsung 21700 performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"https:\/\/www.youtube.com\/@stevehou8316\" target=\"_blank\" rel=\"noopener\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e","brand":"DXF POWER","offers":[{"title":"1PCS New Samsung INR21700-48X 4800mAh   BATTERY","offer_id":50540660326563,"sku":"INR21700-48X -4800mAh -1PCS","price":23.91,"currency_code":"USD","in_stock":true},{"title":"10PCS New Samsung INR21700-48X 4800mAh   BATTERY","offer_id":50540660359331,"sku":"INR21700-48X -4800mAh -10PCS","price":79.21,"currency_code":"USD","in_stock":true},{"title":"20PCS New Samsung INR21700-48X 4800mAh   BATTERY","offer_id":50540660392099,"sku":"INR21700-48X -4800mAh -20PCS","price":140.66,"currency_code":"USD","in_stock":true},{"title":"50PCS New Samsung INR21700-48X 4800mAh   BATTERY","offer_id":50540660424867,"sku":"INR21700-48X -4800mAh -50PCS","price":324.99,"currency_code":"USD","in_stock":true},{"title":"100PCS New Samsung INR21700-48X 4800mAh   BATTERY","offer_id":50540660457635,"sku":"INR21700-48X -4800mAh -100PCS","price":632.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/4_ba67b40b-3de0-4c0b-8493-b74146a35fde.png?v=1790646947"}],"url":"https:\/\/dxf-hobby.store\/fr-hu\/collections\/21700-battery.oembed","provider":"DXF POWER","version":"1.0","type":"link"}