{"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","url":"https:\/\/dxf-hobby.store\/uk-de\/products\/samsung-inr21700-58e-5500mah-11a-li-ion-battery-for-e-bikes-flashlights-diy-battery-packs-1-100-pcs","provider":"DXF POWER","version":"1.0","type":"link"}