{"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","url":"https:\/\/dxf-hobby.store\/hu-gb\/products\/samsung-inr21700-45t-4500mah-35a-li-ion-battery-for-power-tools-rc-diy-battery-packs-1-100-pcs","provider":"DXF POWER","version":"1.0","type":"link"}