{"title":"EVE21700","description":null,"products":[{"product_id":"eve-inr21700-50pl-5000mah-125a-li-ion-battery-for-power-tools-e-bikes-diy-battery-packs-1-100-pcs","title":"EVE INR21700-50PL 5000mAh 125A 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: bold; color: #1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"http:\/\/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\n\u003cp style=\"margin: 0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine EVE INR21700-50PL tabless ultra-power 5000mAh 125A continuous lithium-ion cells for extreme-performance power tools, high-speed electric motorcycles, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"DXF global warehouse delivery network\" cke-id=\"img46\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" style=\"width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEVE INR21700-50PL 5000mAh 125A Continuous Discharge 21700 Li-ion Rechargeable Battery\u003c\/strong\u003e is a flagship tabless ultra-high-drain cylindrical power cell engineered by EVE Energy and supplied by DXF POWER with strict quality grading. Designed for the most demanding power-dense applications on the planet, this flat-top bare cell combines an enormous 5000mAh nominal capacity on a 3.6V nominal platform with a groundbreaking 125A continuous discharge capability. Leveraging next-generation tabless electrode architecture to achieve microscopic internal resistance and virtually eliminate thermal concentration, the EVE 50PL maintains outstanding voltage output and cool operating temperatures under sustained extreme current draw. It is the definitive power choice for heavy-duty commercial tools, electric racing bikes, high-output marine drives, and custom DIY high-power battery packs.\u003c\/p\u003e\n\n\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\n\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" title=\"Watch DXF Batteries in Action\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGenuine EVE INR21700-50PL Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical power cell manufactured by tier-one global leader EVE Energy\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMassive 5000mAh Capacity:\u003c\/strong\u003e High-density 5000mAh capacity provides exceptional runtime alongside extreme current delivery\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBreakthrough 125A Continuous Discharge:\u003c\/strong\u003e Industry-leading 125A continuous discharge current capability for maximum-wattage drive systems\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNext-Gen Tabless Architecture:\u003c\/strong\u003e Advanced current-collector design delivers ultra-low internal impedance and superior heat dissipation\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eFlat Discharge Voltage Curve:\u003c\/strong\u003e Retains high operating voltage under heavy loads, minimizing voltage sag and maximizing useful work output\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Standard dimensions of 21.15 mm diameter × 70.15 mm height and ~72 g weight, ideal for precision spot welding and pack fabrication\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for prototype builds, tool conversions, or volume pack assembly\u003c\/li\u003e\n\t\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\n\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e EVE (EVE Energy Co., Ltd. \/ Supplied by DXF POWER)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-50PL (50PL \/ INR21700\/50PL)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Chemistry:\u003c\/strong\u003e Lithium-Nickel-Manganese-Cobalt (INR)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProtective Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible high-current BMS \/ protection circuit)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal \/ Max Capacity:\u003c\/strong\u003e 5000mAh\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-Off Voltage:\u003c\/strong\u003e 2.50V (discharge not deeper than 2.5V)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eContinuous Discharge Current:\u003c\/strong\u003e 125A continuous\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e Constant Current \/ Constant Voltage (CC-CV)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eRechargeable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: 21.15 mm × Height: 70.15 mm\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Approx. 72 g\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Extreme-duty cordless power tools, electric racing motorcycles, high-power electric bicycles (e-bikes), electric hydrofoils, high-rate robotics, and custom DIY high-power battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eEVE INR21700-50PL 5000mAh 125A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\t\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\t\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e1 PCS – Single Cell Replacement:\u003c\/strong\u003e Quick replacement for high-drain torches, individual test benches, or handheld tools\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e10 PCS – High-Power Tool Modules:\u003c\/strong\u003e Ideal for building heavy-duty 5-cell \/ 10-cell 18V-20V cordless power tool packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Mobile Modules:\u003c\/strong\u003e Perfect for 36V\/40V lawn mowers, industrial power equipment, and robotics\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Motorcycle Battery Packs:\u003c\/strong\u003e Optimized quantity for assembling high-current 48V\/60V\/72V electric vehicle packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Assembly Bulk Set:\u003c\/strong\u003e Best value for workshops, battery rebuilders, and custom pack manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\n\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\n\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\t\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\t\u003cli\u003eNever exceed the maximum continuous discharge current of 125A.\u003c\/li\u003e\n\t\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\t\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\t\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\t\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\t\u003cli\u003eWhen building multi-cell packs, always integrate a quality high-current Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eGenuine Grade-A EVE INR21700-50PL cells with authentic 5000mAh capacity and 125A continuous output\u003c\/li\u003e\n\t\u003cli\u003eNext-generation tabless INR chemistry with microscopic internal impedance and extreme heat tolerance\u003c\/li\u003e\n\t\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\t\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\t\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\n\u003cp\u003eEngineered for power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme continuous discharge up to 125A, massive 5000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePower your projects with trusted EVE performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"http:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"DXF POWER","offers":[{"title":"1PCS EVE INR21700-50PL 5000mAh BATTERY","offer_id":53113945424154,"sku":"INR21700-50PL-5000MAH-1PCS","price":24.94,"currency_code":"USD","in_stock":true},{"title":"10PCS EVE INR21700-50PL 5000mAh BATTERY","offer_id":53113945456922,"sku":"INR21700-50PL-5000MAH-10PCS","price":89.55,"currency_code":"USD","in_stock":true},{"title":"20PCS EVE INR21700-50PL 5000mAh BATTERY","offer_id":53113945489690,"sku":"INR21700-50PL-5000MAH-20PCS","price":161.34,"currency_code":"USD","in_stock":true},{"title":"50PCS EVE INR21700-50PL 5000mAh BATTERY","offer_id":53113945522458,"sku":"INR21700-50PL-5000MAH-100PCS","price":376.41,"currency_code":"USD","in_stock":true},{"title":"100PCS EVE INR21700-50PL 5000mAh BATTERY","offer_id":53113945555226,"sku":"INR21700-50PL-5000MAH-50PCS","price":735.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0312\/5274\/files\/1_9d3d7cb8-0516-4f30-ae40-0b8c82a055ce.png?v=1792322044"},{"product_id":"eve-inr21700-40p-4000mah-40a-li-ion-battery-for-power-tools-e-bikes-diy-battery-packs-1-100-pcs","title":"EVE INR21700-40P 4000mAh 40A 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: bold; color: #1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"http:\/\/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\n\u003cp style=\"margin: 0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine EVE INR21700-40P ultra-high-drain 4000mAh 40A continuous lithium-ion cells for heavy-duty cordless power tools, high-power electric bicycles, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"DXF global warehouse delivery network\" cke-id=\"img58\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" style=\"width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEVE INR21700-40P 4000mAh 40A Continuous Discharge 21700 Li-ion Rechargeable Battery\u003c\/strong\u003e is an industrial powerhouse cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Built for extreme current demands, this flat-top bare cell delivers a generous 4000mAh nominal capacity on a 3.6V nominal platform with a formidable 40A (10C) continuous discharge rating and an ultra-low internal resistance of just 9.1 mΩ. Supporting high-speed charging up to 6A, the EVE 40P minimizes voltage sag under aggressive power loads while maintaining superior thermal stability, making it one of the most capable 21700 bare cells on the market for cordless heavy-duty power tools, high-performance electric motorcycles, e-bikes, and custom DIY battery packs.\u003c\/p\u003e\n\n\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\n\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" title=\"Watch DXF Batteries in Action\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGenuine EVE INR21700-40P Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical bare cell manufactured by global lithium-ion leader EVE Energy\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e4000mAh High-Drain Capacity:\u003c\/strong\u003e 4000mAh nominal capacity provides an exceptional balance of substantial runtime and massive current output\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e40A Continuous Discharge (10C):\u003c\/strong\u003e Massive 40A continuous discharge rating delivers uninterrupted power for heavy motor drives and high-wattage equipment\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eUltra-Low Internal Resistance (9.1 mΩ):\u003c\/strong\u003e Minimal internal impedance ensures exceptional voltage retention under sustained maximum loads\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eRapid 6A Fast Charging:\u003c\/strong\u003e Supports up to 6A maximum charging current for fast turnaround times in high-demand environments\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePremium INR Chemistry:\u003c\/strong\u003e Lithium-Nickel-Manganese-Cobalt chemistry engineered for thermal resilience and cycle longevity\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Dimensions of 21.2 mm diameter × 70.0 mm length and ~68 g weight, ideal for precision spot welding and pack fabrication\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for individual tool repairs or volume battery assembly\u003c\/li\u003e\n\t\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\n\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e EVE (EVE Energy Co., Ltd. \/ Supplied by DXF POWER)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-40P (40P)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Chemistry:\u003c\/strong\u003e Lithium-Nickel-Manganese-Cobalt (INR)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible BMS \/ protection circuit)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 4000mAh\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDischarge Cut-Off Voltage:\u003c\/strong\u003e 2.50V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eContinuous Discharge Current:\u003c\/strong\u003e 40A continuous (10C rate)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eInternal Resistance:\u003c\/strong\u003e Approx. 9.1 mΩ\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMaximum Charging Current:\u003c\/strong\u003e 6A (CC-CV)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eRechargeable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: 21.2 mm × Length: 70.0 mm\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Approx. 68 g\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Heavy-duty cordless power tools, electric motorcycles, high-power electric bicycles (e-bikes), electric skateboards, lawn and garden machinery, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eEVE INR21700-40P 4000mAh 40A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\t\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\t\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e1 PCS – Single Cell Replacement:\u003c\/strong\u003e Quick replacement for high-drain torches, individual test benches, or handheld tools\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e10 PCS – High-Power Tool Modules:\u003c\/strong\u003e Ideal for building heavy-duty 5-cell \/ 10-cell 18V-20V cordless power tool packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Mobile Modules:\u003c\/strong\u003e Perfect for 36V\/40V lawn mowers, industrial power equipment, and robotics\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Motorcycle Battery Packs:\u003c\/strong\u003e Optimized quantity for assembling high-current 48V\/60V\/72V electric vehicle packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Assembly Bulk Set:\u003c\/strong\u003e Best value for workshops, battery rebuilders, and custom pack manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\n\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\n\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\t\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\t\u003cli\u003eNever exceed the maximum continuous discharge current of 40A.\u003c\/li\u003e\n\t\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\t\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\t\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\t\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\t\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\n\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eGenuine Grade-A EVE INR21700-40P cells with authentic 4000mAh capacity and 40A continuous output\u003c\/li\u003e\n\t\u003cli\u003eHigh-discharge INR chemistry with ultra-low 9.1 mΩ internal resistance and 6A rapid charging\u003c\/li\u003e\n\t\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\t\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\t\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\n\u003cp\u003eEngineered for power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme 40A continuous discharge, 4000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePower your projects with trusted EVE performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"http:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"DXF POWER","offers":[{"title":"1PCS EVE INR21700-40P 4000mah BATTERY","offer_id":53113950011674,"sku":"INR21700-40P-4000mAh-1PCS","price":23.24,"currency_code":"USD","in_stock":true},{"title":"10PCS EVE INR21700-40P 4000mah BATTERY","offer_id":53113950044442,"sku":"INR21700-40P-4000mAh-10PCS","price":72.52,"currency_code":"USD","in_stock":true},{"title":"20PCS EVE INR21700-40P 4000mah BATTERY","offer_id":53113950077210,"sku":"INR21700-40P-4000mAh-20PCS","price":127.27,"currency_code":"USD","in_stock":true},{"title":"50PCS EVE INR21700-40P 4000mah BATTERY","offer_id":53113950109978,"sku":"INR21700-40P-4000mAh-50PCS","price":291.53,"currency_code":"USD","in_stock":true},{"title":"100PCS EVE INR21700-40P 4000mah BATTERY","offer_id":53113950142746,"sku":"INR21700-40P-4000mAh-100PCS","price":565.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0312\/5274\/files\/1_4c0e9fb9-0f0a-456d-b57f-fbf40cd2009c.png?v=1792322172"},{"product_id":"eve-inr21700-50e-5000mah-15a-li-ion-battery-for-e-bikes-scooters-diy-battery-packs-1-100-pcs","title":"EVE INR21700-50E 5000mAh 15A Li-ion Battery for E-Bikes, Scooters \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\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"http:\/\/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\n\u003cp style=\"margin: 0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine EVE INR21700-50E high-energy 5000mAh 15A continuous lithium-ion cells for electric bicycles, e-scooters, motorcycles, and custom DIY battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"DXF global warehouse delivery network\" cke-id=\"img58\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" style=\"width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEVE INR21700-50E 5000mAh 15A Continuous Discharge 21700 Li-ion Rechargeable Battery\u003c\/strong\u003e is an exceptional high-energy-density cylindrical bare cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Optimized for extended-range light electric vehicles and high-capacity energy storage, this flat-top bare cell delivers a robust 5000mAh (5.0Ah \/ 18.25Wh) nominal capacity on a 3.65V nominal platform with a dependable 15A maximum continuous discharge rating. Boasting an impressive gravimetric energy density of 257 Wh\/kg, a nickel-based cathode paired with a graphite anode, and proven thermal stability, the EVE 50E is the preferred industry standard for electric bicycles, electric scooters, lightweight motorcycles, backup power banks, and custom DIY battery packs.\u003c\/p\u003e\n\n\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\n\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" title=\"Watch DXF Batteries in Action\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGenuine EVE INR21700-50E Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical bare cell manufactured by global tier-one battery producer EVE Energy\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e5000mAh High-Density Capacity:\u003c\/strong\u003e Full 5.0Ah (18.25Wh) capacity delivers maximum endurance and range for light electric vehicles and portable equipment\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e15A Continuous Discharge:\u003c\/strong\u003e Dependable 15A continuous discharge current capability supports steady power demands without excessive heat generation\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eSuperior Energy Density (257 Wh\/kg):\u003c\/strong\u003e Advanced nickel-based cathode and graphite anode chemistry ensures high volumetric efficiency and lightweight battery packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStable 3.65V Platform:\u003c\/strong\u003e Reliable CC-CV charging profile up to 4.20V with standard 2.50V discharge cut-off\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Design:\u003c\/strong\u003e Cylindrical dimensions of ~21.2 mm diameter × ~70.5 mm length and ~71 g weight, ideal for precision spot welding and pack fabrication\u003c\/li\u003e\n\t\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\t\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\n\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e EVE Energy (Supplied by DXF POWER)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-50E (50E)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProtection Circuit:\u003c\/strong\u003e Without (Unprotected industrial bare cell; requires compatible BMS \/ protection circuit)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 5000mAh (5.0Ah)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eEnergy Capacity:\u003c\/strong\u003e 18.25 Wh\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.65V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.20V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDischarging Cut-Off Voltage:\u003c\/strong\u003e 2.50V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMax Continuous Discharge Current:\u003c\/strong\u003e 15A continuous (approx. 3C)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGravimetric Energy Density:\u003c\/strong\u003e Approx. 257 Wh\/kg\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGravimetric Power Density:\u003c\/strong\u003e Approx. 771 W\/kg\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePositive Electrode (Cathode):\u003c\/strong\u003e Nickel-based (Ni-based)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNegative Electrode (Anode):\u003c\/strong\u003e Graphite\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e Constant Current \/ Constant Voltage (CC-CV)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Cylindrical 21700 (Volume: approx. 24.93 cm³)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Approx. 71 g\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Electric bicycles (e-bikes), electric scooters, light electric motorcycles, portable power stations, energy storage systems, and custom DIY battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eEVE INR21700-50E 5000mAh 15A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\t\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\t\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e1 PCS – Single Cell Replacement:\u003c\/strong\u003e Quick replacement for high-drain torches, individual test benches, or handheld tools\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e10 PCS – Compact Device Modules:\u003c\/strong\u003e Ideal for portable power banks, camping gear, and handheld equipment\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Capacity Modules:\u003c\/strong\u003e Perfect for small energy storage systems, robotics, and auxiliary power units\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Scooter Battery Packs:\u003c\/strong\u003e Optimized quantity for assembling long-range 36V\/48V light electric vehicle packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Assembly Bulk Set:\u003c\/strong\u003e Best value for workshops, battery rebuilders, and custom pack manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\n\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\n\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\t\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\t\u003cli\u003eNever exceed the maximum continuous discharge current of 15A.\u003c\/li\u003e\n\t\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\t\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\t\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\t\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\t\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\n\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eGenuine Grade-A EVE INR21700-50E cells with authentic 5000mAh capacity and 15A continuous output\u003c\/li\u003e\n\t\u003cli\u003eHigh-energy-density chemistry (257 Wh\/kg) with stable voltage retention and excellent cycle endurance\u003c\/li\u003e\n\t\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\t\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\t\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\n\u003cp\u003eEngineered for light electric vehicle builders, scooter mechanics, and DIY pack fabricators demanding maximum 5000mAh capacity, 257 Wh\/kg energy density, and reliable 15A continuous discharge for extended range and long cycle life.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePower your projects with trusted EVE performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"http:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"DXF POWER","offers":[{"title":"1PCS EVE INR21700-50E 5000MAH  BATTERY","offer_id":53113951093018,"sku":"INR21700-50E-5000MAH-1PCS","price":23.27,"currency_code":"USD","in_stock":true},{"title":"10PCS EVE INR21700-50E 5000MAH  BATTERY","offer_id":53113951125786,"sku":"INR21700-50E-5000MAH-10PCS","price":72.82,"currency_code":"USD","in_stock":true},{"title":"20PCS EVE INR21700-50E 5000MAH  BATTERY","offer_id":53113951158554,"sku":"INR21700-50E-5000MAH-20PCS","price":127.88,"currency_code":"USD","in_stock":true},{"title":"50PCS EVE INR21700-50E 5000MAH  BATTERY","offer_id":53113951191322,"sku":"INR21700-50E-5000MAH-50PCS","price":293.05,"currency_code":"USD","in_stock":true},{"title":"100PCS EVE INR21700-50E 5000MAH  BATTERY","offer_id":53113951224090,"sku":"INR21700-50E-5000MAH-100PCS","price":568.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0312\/5274\/files\/2_ec82d911-46cb-4e58-929b-789c71bf2b62.png?v=1792322209"},{"product_id":"eve-inr21700-40pl-4000mah-70a-li-ion-battery-for-power-tools-e-bikes-diy-battery-packs-1-100-pcs","title":"EVE INR21700-40PL 4000mAh 70A 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: bold; color: #1b16d8;\"\u003e🌐 Global Shipping from China – Rates \u0026amp; Delivery Times\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca href=\"http:\/\/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\n\u003cp style=\"margin: 0;\"\u003eChoose your pack quantity (1–100 PCS) — genuine EVE INR21700-40PL extreme-power 4000mAh continuous discharge up to 70A lithium-ion cells for heavy-duty cordless power tools, electric racing mobility, and custom DIY high-power battery projects.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"DXF global warehouse delivery network\" cke-id=\"img58\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0484\/7691\/3827\/files\/dxf_552c7b88-2609-4f84-bed1-943e60c00cc8.png?v=1764311930\" style=\"width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEVE INR21700-40PL 4000mAh 70A Continuous Discharge 21700 Li-ion Rechargeable Battery\u003c\/strong\u003e is an ultra-high-drain cylindrical power cell manufactured by EVE Energy and supplied by DXF POWER with strict quality grading. Engineered specifically for high-load industrial machinery and extreme-rate battery pack construction, this flat-top bare cell delivers 4000mAh nominal capacity on a 3.6V nominal platform with an industry-leading continuous discharge capability of up to 70A. Featuring cutting-edge electrode formulation, ultra-low internal impedance, and exceptional heat tolerance, the EVE 40PL delivers sustained current under demanding loads with minimal voltage depression, making it the premier choice for heavy-duty cordless tools, electric racing bikes, electric watercraft, and custom DIY high-output power modules.\u003c\/p\u003e\n\n\u003ch2\u003eWatch DXF Batteries in Action\u003c\/h2\u003e\n\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/9yfcgnfSTk0\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" title=\"Watch DXF Batteries in Action\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eGenuine EVE INR21700-40PL Cell:\u003c\/strong\u003e Authentic Grade-A 21700 cylindrical cell engineered by EVE Energy for extreme-output applications\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e4000mAh High Capacity:\u003c\/strong\u003e Generous 4000mAh capacity provides an ideal balance between sustained high energy density and extreme power delivery\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eExtreme 70A Continuous Discharge:\u003c\/strong\u003e Delivers continuous discharge current up to 70A, built to handle heavy motor starts and high-draw demands\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eUltra-Low Internal Resistance:\u003c\/strong\u003e Advanced tab and electrode construction minimizes thermal rise and preserves voltage under heavy loads\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e0.5C–1C Flexible Charging:\u003c\/strong\u003e Supports reliable CC-CV charging from 2.0A (0.5C) up to 4.0A (1C) for efficient recharges\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eStandard 21700 Flat-Top Format:\u003c\/strong\u003e Dimensions of 21.1 mm diameter × 70.1 mm length and ~67 g weight, ideal for precision spot welding and pack assembly\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMultiple Pack Bundles:\u003c\/strong\u003e Available in 1, 10, 20, 50, and 100 piece packages for individual tool rebuilds or volume battery pack production\u003c\/li\u003e\n\t\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\n\u003ch2\u003eSpecifications, Per Battery\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eBrand \/ Manufacturer:\u003c\/strong\u003e EVE (EVE Energy Co., Ltd. \/ Supplied by DXF POWER)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eModel \/ Part No.:\u003c\/strong\u003e INR21700-40PL (40PL)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Format:\u003c\/strong\u003e 21700 Cylindrical Rechargeable Lithium-ion (Li-ion)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Chemistry:\u003c\/strong\u003e Lithium-Nickel-Manganese-Cobalt (INR)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePositive Pole:\u003c\/strong\u003e Flat (Flat Top)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eProtection Electronics:\u003c\/strong\u003e No (Unprotected industrial bare cell; requires compatible high-drain BMS \/ protection circuit)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Capacity:\u003c\/strong\u003e 4000mAh\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMaximum Voltage (Charge):\u003c\/strong\u003e 4.2V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eMinimum Voltage (Cut-Off):\u003c\/strong\u003e 2.5V\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eDischarge Current:\u003c\/strong\u003e Up to 70A continuous\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Current:\u003c\/strong\u003e 0.5C to 1C (approx. 2A to 4A CC-CV)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCharging Method:\u003c\/strong\u003e Constant Current \/ Constant Voltage (CC-CV)\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eRechargeable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Dimensions:\u003c\/strong\u003e Diameter: 21.1 mm × Length: 70.1 mm\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCell Weight:\u003c\/strong\u003e Approx. 67 g\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Extreme-power cordless power tools, electric racing motorcycles, high-wattage e-bikes, electric skateboards, lawn and garden equipment, and custom DIY high-power battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eEVE INR21700-40PL 4000mAh 70A battery cells, quantity chosen from 1, 10, 20, 50, or 100 PCS\u003c\/li\u003e\n\t\u003cli\u003eProtective packaging \/ cell box\u003c\/li\u003e\n\t\u003cli\u003eUser manual and battery safety guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoose Your Ideal Power Bundle\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e1 PCS – Single Cell Replacement:\u003c\/strong\u003e Quick replacement for high-drain torches, individual test benches, or handheld tools\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e10 PCS – High-Power Tool Modules:\u003c\/strong\u003e Ideal for building heavy-duty 5-cell \/ 10-cell 18V-20V cordless power tool packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e20 PCS – High-Output Mobile Modules:\u003c\/strong\u003e Perfect for 36V\/40V lawn mowers, industrial power equipment, and robotics\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e50 PCS – E-Bike \u0026amp; Motorcycle Battery Packs:\u003c\/strong\u003e Optimized quantity for assembling high-current 48V\/60V\/72V electric vehicle packs\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003e100 PCS – Volume Assembly Bulk Set:\u003c\/strong\u003e Best value for workshops, battery rebuilders, and custom pack manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePurchasing in bundles ensures matched cell batches for balanced series and parallel assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e180-Day Warranty \u0026amp; Customer Support\u003c\/h2\u003e\n\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\n\u003ch2\u003eUsage \u0026amp; Safety Guidelines\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eUse a dedicated lithium-ion smart charger supporting CC\/CV charging mode up to 4.20V.\u003c\/li\u003e\n\t\u003cli\u003eNever charge above 4.25V per cell or discharge below 2.50V per cell.\u003c\/li\u003e\n\t\u003cli\u003eNever exceed the maximum continuous discharge current rating of 70A.\u003c\/li\u003e\n\t\u003cli\u003eAlways inspect cell outer shrink wrap, insulator ring, and terminals for damage before use; rewrap immediately if damaged.\u003c\/li\u003e\n\t\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\t\u003cli\u003eDo not short-circuit, crush, incinerate, puncture, or submerge cells in water.\u003c\/li\u003e\n\t\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\t\u003cli\u003eWhen building multi-cell packs, always integrate a quality high-current Battery Management System (BMS) with over-current, over-charge, over-discharge, and thermal balance protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose DXF?\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eGenuine Grade-A EVE INR21700-40PL cells with authentic 4000mAh capacity and up to 70A continuous output\u003c\/li\u003e\n\t\u003cli\u003eExtreme-rate INR chemistry with ultra-low internal impedance and robust thermal stability\u003c\/li\u003e\n\t\u003cli\u003eCarefully matched batches for balanced series and parallel pack assembly\u003c\/li\u003e\n\t\u003cli\u003eStrict factory pre-shipment quality checks and secure protective packaging\u003c\/li\u003e\n\t\u003cli\u003eGlobal warehouse logistics network and professional technical customer support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\n\u003cp\u003eEngineered for power tool rebuilders, EV mechanics, and DIY pack fabricators demanding extreme continuous discharge up to 70A, 4000mAh capacity, and ultra-low internal resistance for heavy-duty tools, high-speed electric mobility, and custom energy modules.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePower your projects with trusted EVE performance.\u003c\/strong\u003e Learn more about setups and battery care on the \u003ca href=\"http:\/\/www.youtube.com\/@stevehou8316\" rel=\"noopener\" target=\"_blank\"\u003eDXF YouTube channel\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"DXF POWER","offers":[{"title":"1PCS INR21700-40PL-4000MAH BATTERY","offer_id":53113952403738,"sku":"INR21700-40PL-4000mAh-1PCS","price":23.85,"currency_code":"USD","in_stock":true},{"title":"10PCS INR21700-40PL-4000MAH BATTERY","offer_id":53113952436506,"sku":"INR21700-40PL-4000mAh-10PCS","price":78.6,"currency_code":"USD","in_stock":true},{"title":"20PCS INR21700-40PL-4000MAH BATTERY","offer_id":53113952469274,"sku":"INR21700-40PL-4000mAh-20PCS","price":139.44,"currency_code":"USD","in_stock":true},{"title":"50PCS INR21700-40PL-4000MAH BATTERY","offer_id":53113952502042,"sku":"INR21700-40PL-4000mAh-50PCS","price":321.95,"currency_code":"USD","in_stock":true},{"title":"100PCS INR21700-40PL-4000MAH BATTERY","offer_id":53113952534810,"sku":"INR21700-40PL-4000mAh-100PCS","price":626.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0312\/5274\/files\/2_a33f01c7-dc98-4ae2-963e-0959c9f326e1.png?v=1792322249"}],"url":"https:\/\/dxfpower.com\/de\/collections\/eve21700.oembed","provider":"DXF POWER","version":"1.0","type":"link"}