{"title":"BAK 21700 Batteries","description":"\u003cp\u003eBAK 21700 batteries are lithium-ion rechargeable cells known for their consistent performance and reliability. Manufactured by BAK Battery, these cells are widely used in battery packs, energy storage systems, and a range of commercial and industrial applications.\u003c\/p\u003e\n\n\u003cp\u003eThe 21700 format offers increased capacity and improved efficiency compared to smaller cell sizes, making BAK cells suitable for modern battery systems and demanding applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e\n✔ OEM Manufacturer – Produced by BAK with consistent quality\u003cbr\u003e\n✔ Lithium-Ion Chemistry – Rechargeable cells with stable voltage output\u003cbr\u003e\n✔ Reliable Performance – Designed for consistent energy delivery\u003cbr\u003e\n✔ 21700 Format – Increased capacity and improved efficiency\n\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003e\n✔ Battery Pack Assembly – Used in lithium-ion pack builds and integrations\u003cbr\u003e\n✔ Energy Storage Systems – Suitable for applications requiring consistent output\u003cbr\u003e\n✔ EV \u0026amp; Mobility Applications – Used in electric vehicles and related systems\u003cbr\u003e\n✔ DIY \u0026amp; Custom Projects – Popular among builders and system designers\n\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Considerations\u003c\/h3\u003e\n\u003cp\u003eBAK 21700 batteries are available in models designed for both capacity and performance. Selecting the appropriate cell depends on your specific application requirements, including discharge rate and runtime needs.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eAlways verify compatibility with your device or battery system, including size, discharge requirements, and supported battery specifications.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eUse only with compatible devices and chargers designed for lithium-ion batteries. Proper handling and usage are important for safe operation.\u003c\/p\u003e\n\n\u003cp\u003eBrowse our selection of BAK 21700 batteries to find cells suited for your application.\u003c\/p\u003e","products":[{"product_id":"bak-21700-5000mah-15a-battery-n21700cg","title":"BAK 21700 5000mAh 15A Battery (N21700CG)","description":"\u003cp\u003e\u003cb\u003e\u003ca href=\"https:\/\/www.imrbatteries.com\/free-cases\/\"\u003e\u003c\/a\u003e\u003ca title=\" Receive a FREE battery case with your purchase of batteries! Click for details. \" class=\"aalmanual manual\" target=\"_blank\" href=\"https:\/\/www.imrbatteries.com\/free-cases\/\"\u003e Receive a FREE battery case with your purchase of batteries! Click for details.\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cb\u003e\u003cu\u003eSPECIFICATIONS:\u003c\/u\u003e\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\r\n\u003ctable border=\"1\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eManufacturer:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 400px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  BAK\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eModel:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  N21700CG\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eSize:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  21700\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eStyle:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  Flat Top\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eProtected:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  NO, UNPROTECTED. This cell is unprotected and intended for use in protected battery packs only and NOT individually or as a standalone product. In order to operate safely it must have additional protection in the form of a PCB (protection circuit board) or BMS (battery management system), which is not included. \u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003e\u003cspan\u003eNominal Capacity:  \u003c\/span\u003e\u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  5000mAh\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eDischarge Current:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  15A Max Continuous\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eNominal Voltage:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  3.6V\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eMaximum Voltage:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  4.2V\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eCutoff Voltage:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  2.5V\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eApproximate Dimensions:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  21.1mm x 70.7mm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eApproximate Weight: \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  68g\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eOrigin:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  China\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"height: 40px; width: 325px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"right\" valign=\"middle\"\u003eSpecification Datasheet:  \u003c\/td\u003e\r\n\u003ctd style=\"height: 40px; width: 240px; border-color: #00baff; border-style: solid; border-width: 1px;\" align=\"left\" valign=\"middle\"\u003e  \u003ca class=\"aalmanual manual\" title=\"BAK N21700CG Specification Datasheet \" href=\"https:\/\/www.imrbatteries.com\/content\/bak_N21700CG.pdf%20\" target=\"_blank\"\u003eBAK N21700CG Datasheet\u003c\/a\u003e\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\r\n","brand":"BAK","offers":[{"title":"Default Title","offer_id":43741383884857,"sku":"BAK-21700-50","price":5.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/BAK-21700-50_aa53b041-698f-4e1e-a00b-d51b2645655a.jpg?v=1724785542"},{"product_id":"bak-45d-21700-4500mah-60a-battery","title":"BAK 45D 21700 4500mAh 60A Tabless Battery","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e4500mAh Energy Reserve:\u003c\/strong\u003e High-capacity design ensures stable, extended operation.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e60A Continuous Load Support:\u003c\/strong\u003e Built for applications requiring sustained heavy current draw.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Performance Li-ion Cell:\u003c\/strong\u003e Minimal internal resistance for improved efficiency.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eDurable Structure:\u003c\/strong\u003e Rated for 600+ cycles with proper thermal management.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003e21700 High-Density Format:\u003c\/strong\u003e Increased volume allows improved thermal and energy performance.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003eThe BAK 45D 21700 cell is a robust lithium-ion battery engineered for systems requiring high current, long cycle life, and stable voltage output.  \r\nIts 60A discharge capability makes it suitable for advanced powertrains, industrial equipment, and custom-built battery packs.  \r\nThis unprotected flat-top cell is intended for integration into professionally designed BMS-controlled battery systems.\u003c\/p\u003e\r\n\r\n\u003ch4\u003eApplications\/Uses\u003c\/h4\u003e\r\n\u003cul\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eEV Battery Modules:\u003c\/strong\u003e Provides strong current delivery for electric mobility solutions.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Tooling:\u003c\/strong\u003e Supports demanding torque and power requirements.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eEnergy Storage Banks:\u003c\/strong\u003e Great for solar storage, UPS systems, and modular ESS units.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Drain R\/C \u0026amp; Robotics:\u003c\/strong\u003e Delivers reliable power for motors and actuators.\u003c\/li\u003e\r\n  \u003cli\u003e\n\u003cstrong\u003eProfessional Illumination:\u003c\/strong\u003e Ideal for high-power LED devices and tactical lights.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch4\u003eSPECIFICATIONS\u003c\/h4\u003e\r\n\u003cdiv class=\"table-wrapper\"\u003e\r\n\u003ctable\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eBrand:\u003c\/td\u003e\n\u003ctd\u003eBAK\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eModel:\u003c\/td\u003e\n\u003ctd\u003e45D\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eBattery Type:\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eCapacity:\u003c\/td\u003e\n\u003ctd\u003e4500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage:\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eFull Charge Voltage:\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eDischarge Cutoff Voltage:\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eContinuous Discharge Rate:\u003c\/td\u003e\n\u003ctd\u003e60A (80°C cutoff)\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eRechargeable:\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eProtected:\u003c\/td\u003e\n\u003ctd\u003eNo, Unprotected\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eCycle Life:\u003c\/td\u003e\n\u003ctd\u003e600+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eDiameter:\u003c\/td\u003e\n\u003ctd\u003e21.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eLength:\u003c\/td\u003e\n\u003ctd\u003e70.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e~70g\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003c\/div\u003e\r\n","brand":"BAK","offers":[{"title":"Default Title","offer_id":45264489611321,"sku":"BAK-45D","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/BAK-45D.jpg?v=1766082110"}],"url":"https:\/\/imrbatteries.com\/collections\/bak-21700-batteries.oembed","provider":"IMR Batteries","version":"1.0","type":"link"}