{"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_5466a48f-5ce9-4ccf-bf62-fb1c172ac939.png?v=1790606181","url":"https:\/\/dxf-hobby.store\/sv-fr\/products\/samsung-inr21700-50e-5000mah-9-8a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","provider":"DXF POWER","version":"1.0","type":"link"}