{"product_id":"samsung-58e-21700-5330mah-10-7a-battery","title":"Samsung 58E 21700 5330mAh 10.7A Battery","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e5330mAh High Capacity:\u003c\/strong\u003e One of the highest-capacity 21700 cells available — ≥5330mAh standard discharge with a 5170mAh rated floor at 1C, so the numbers hold up in real-world use.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20Wh Energy Output:\u003c\/strong\u003e At 20Wh per cell, the 58E is built for builds where runtime per kilogram of pack weight is the metric that matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStable Continuous Discharge:\u003c\/strong\u003e 10.7A continuous discharge makes the 58E an energy cell through and through — steady, controlled current for applications that run long rather than run hard.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLow Impedance Design:\u003c\/strong\u003e ≤15mΩ AC impedance after standard charge keeps energy delivery efficient and voltage response consistent across the full discharge curve.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e500-Cycle Durability:\u003c\/strong\u003e Holds ≥4136mAh after 500 cycles under standard conditions — strong long-term capacity retention for a cell in this energy class.\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eOverview\u003c\/h4\u003e \u003cp\u003eIf your build is about range, runtime, and energy density rather than peak discharge, the Samsung 58E is worth a close look. With ≥5330mAh standard capacity, a 3.64V nominal voltage, and 20Wh of energy per cell, it sits at the top of the 21700 energy class. The 10.7A continuous discharge rating is modest by power-cell standards — but that is exactly the point. The 58E is optimized for applications that draw steady, controlled current over long periods rather than short, high-current bursts, and it excels at that role. An AC impedance of ≤15mΩ keeps things running cleanly, and 500-cycle durability with ≥4136mAh retention means your pack stays useful well beyond the first hundred charges. It is an unprotected cell, so a properly designed pack with spot-welded interconnects and a solid BMS is the right way to run it — no direct soldering.\u003c\/p\u003e \u003ch4\u003eApplications \/ Uses\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eE-bikes and electric vehicles where maximizing range per charge is the primary performance goal\u003c\/li\u003e \u003cli\u003ePortable power stations and high-capacity backup power packs\u003c\/li\u003e \u003cli\u003eCustom battery pack builds focused on energy density and long cycle life\u003c\/li\u003e \u003cli\u003eLighting systems and electronics requiring steady, extended current delivery\u003c\/li\u003e \u003cli\u003eRobotics and automation equipment with moderate, consistent current draw profiles\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cdiv class=\"table-wrapper\"\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eBrand:\u003c\/td\u003e\n\u003ctd\u003eSamsung SDI\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eModel:\u003c\/td\u003e\n\u003ctd\u003e58E (CC5493F101)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eBattery Type:\u003c\/td\u003e\n\u003ctd\u003e21700 Lithium-Ion (INR)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStandard Discharge Capacity:\u003c\/td\u003e\n\u003ctd\u003e≥5330mAh (0.2C to 2.5V)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eRated Discharge Capacity:\u003c\/td\u003e\n\u003ctd\u003e≥5170mAh (1C to 2.5V)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eTypical Energy:\u003c\/td\u003e\n\u003ctd\u003e20.0Wh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e3.64V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eFull Charge Voltage:\u003c\/td\u003e\n\u003ctd\u003e4.20V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDischarge Cutoff Voltage:\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStandard Charge Current:\u003c\/td\u003e\n\u003ctd\u003e0.5C \/ 2665mA\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMaximum Charge Current:\u003c\/td\u003e\n\u003ctd\u003e1C \/ 5330mA\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStandard Charge Time:\u003c\/td\u003e\n\u003ctd\u003e~4 hours\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCharge Method:\u003c\/td\u003e\n\u003ctd\u003eCC-CV\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMax Continuous Discharge:\u003c\/td\u003e\n\u003ctd\u003e2C \/ 10.7A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eInitial AC Impedance:\u003c\/td\u003e\n\u003ctd\u003e≤15mΩ (AC 1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCycle Life:\u003c\/td\u003e\n\u003ctd\u003e≥4136mAh after 500 cycles\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCharge Temperature:\u003c\/td\u003e\n\u003ctd\u003e0°C to 45°C\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDischarge Temperature:\u003c\/td\u003e\n\u003ctd\u003e-10°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStorage Temperature:\u003c\/td\u003e\n\u003ctd\u003eUp to 1 year at -20°C to 23°C\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eBattery Top:\u003c\/td\u003e\n\u003ctd\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eProtected:\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDiameter:\u003c\/td\u003e\n\u003ctd\u003e21.78mm (Max)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eHeight:\u003c\/td\u003e\n\u003ctd\u003e71.00mm (Max)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e74g (Max)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eRechargeable:\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e","brand":"Samsung SDI","offers":[{"title":"Default Title","offer_id":50673622417465,"sku":"SAMSUNG-58E","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/SAMSUNG-58E.jpg?v=1791309124","url":"https:\/\/imrbatteries.com\/products\/samsung-58e-21700-5330mah-10-7a-battery","provider":"IMR Batteries","version":"1.0","type":"link"}