{"title":"Reliance 21700 Batteries","description":"\u003cp\u003eReliance 21700 batteries are lithium-ion rechargeable cells designed for use in battery packs, energy storage systems, and a range of commercial and industrial applications. These cells are part of evolving battery manufacturing efforts focused on modern energy systems and supply chain development.\u003c\/p\u003e\n\n\u003cp\u003eThe 21700 format offers increased capacity and improved efficiency compared to smaller cell sizes, making these batteries suitable for a variety of applications requiring reliable energy delivery.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003e\n✔ OEM Manufacturer – Produced by Reliance for battery and energy applications\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✔ Portable Equipment – Used in compatible battery-powered devices\u003cbr\u003e\n✔ DIY \u0026amp; Custom Projects – Used by builders and system designers\n\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Considerations\u003c\/h3\u003e\n\u003cp\u003eReliance 21700 batteries are available in configurations designed for both capacity and performance. Selecting the appropriate cell depends on your specific application requirements.\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 Reliance 21700 batteries to find cells suited for your application.\u003c\/p\u003e","products":[{"product_id":"reliance-rs50-21700-5000mah-70a-battery","title":"Reliance RS50 21700 5000mAh 70A Tabless Battery","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLong-Lasting Power:\u003c\/strong\u003e 5000mAh capacity supports extended use between charges.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExtreme Output Capability:\u003c\/strong\u003e Delivers up to 70A continuous discharge for demanding devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBalanced Performance:\u003c\/strong\u003e INR chemistry provides stability, safety, and strong energy delivery.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Steel shell with built-in pressure relief protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Suitable for high-drain battery packs and professional-grade equipment.\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eOverview\u003c\/h4\u003e \u003cp\u003eThe Reliance RS50 is a powerful 21700 lithium-ion battery designed for applications that require both high capacity and extreme current output. With a 5000mAh nominal capacity and a 70A continuous discharge rating, this flat top cell delivers reliable, consistent performance. Its durable design and advanced chemistry make it an excellent choice for demanding power systems.\u003c\/p\u003e \u003ch4\u003eApplications \/ Uses\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eHigh-power battery pack builds\u003c\/li\u003e \u003cli\u003eElectric tools and transport devices\u003c\/li\u003e \u003cli\u003eIndustrial and professional equipment\u003c\/li\u003e \u003cli\u003eHigh-current electronic systems\u003c\/li\u003e \u003cli\u003eCustom power solutions\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eReliance\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRS50\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCell Size\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003ePositive Terminal\u003c\/td\u003e\n\u003ctd\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd\u003e5000mAh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMinimum Capacity\u003c\/td\u003e\n\u003ctd\u003e4850mAh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eContinuous Discharge\u003c\/td\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003ePulse Discharge (5s)\u003c\/td\u003e\n\u003ctd\u003e140A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDischarge Cut-off Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eProtected\u003c\/td\u003e\n\u003ctd\u003eNo (Unprotected)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStandard Charge Current\u003c\/td\u003e\n\u003ctd\u003e2500mA\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eFast Charge Current\u003c\/td\u003e\n\u003ctd\u003e5000mA\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCycle Life\u003c\/td\u003e\n\u003ctd\u003e≥80% capacity after 500 cycles\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-30°C to 75°C (Discharge) \/ 0°C to 60°C (Charge)\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 \u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions\u003c\/td\u003e\n\u003ctd\u003e21.0mm x 70.2mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eApprox. Weight\u003c\/td\u003e\n\u003ctd\u003e66g\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/Reliance_21700_RS50_5000mAh_70A_Battery_Datasheet.pdf?v=1755714280\" target=\"_blank\" rel=\"noopener\"\u003eReliance 21700 RS50 5000mAh 70A Battery Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"RELIANCE","offers":[{"title":"Default Title","offer_id":44845493256249,"sku":"RELIANCE-RS50","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/RELIANCE-RS50_e65da72f-91fb-416e-9e2a-709eb678cbf1.jpg?v=1776369848"},{"product_id":"reliance-rs40-21700-4000mah-70a-battery","title":"Reliance RS40 21700 4000mAh 70A Tabless Battery","description":"\u003ch4\u003eKey Features\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLong-Lasting Power:\u003c\/strong\u003e 4000mAh capacity supports extended use.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExtreme Output Capability:\u003c\/strong\u003e Delivers up to 70A continuous discharge.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStable Performance:\u003c\/strong\u003e INR chemistry provides balanced power and thermal stability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged Design:\u003c\/strong\u003e Steel casing with built-in safety venting.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePack-Ready Cell:\u003c\/strong\u003e Designed for use in professionally assembled battery packs.\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eOverview\u003c\/h4\u003e \u003cp\u003eThe Reliance RS40 is a powerful 21700 lithium-ion battery designed for high-drain applications that demand both strength and reliability. With a 4000mAh nominal capacity and an impressive 70A continuous discharge rating, this flat top cell delivers outstanding performance in demanding environments. Its durable construction and consistent output make it a dependable choice for advanced power systems.\u003c\/p\u003e \u003ch4\u003eApplications \/ Uses\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eHigh-power battery pack builds\u003c\/li\u003e \u003cli\u003eElectric mobility and transport devices\u003c\/li\u003e \u003cli\u003eIndustrial and professional equipment\u003c\/li\u003e \u003cli\u003eHigh-current electronics\u003c\/li\u003e \u003cli\u003eCustom power solutions\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eReliance\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRS40\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCell Size\u003c\/td\u003e\n\u003ctd\u003e21700\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003ePositive Terminal\u003c\/td\u003e\n\u003ctd\u003eFlat Top\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd\u003e4000mAh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMinimum Capacity\u003c\/td\u003e\n\u003ctd\u003e3900mAh\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eContinuous Discharge\u003c\/td\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.6V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\u003ctd\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDischarge Cut-off Voltage\u003c\/td\u003e\n\u003ctd\u003e2.5V\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eProtected\u003c\/td\u003e\n\u003ctd\u003eNo (Unprotected)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eStandard Charge Current\u003c\/td\u003e\n\u003ctd\u003e2500mA\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCycle Life\u003c\/td\u003e\n\u003ctd\u003e≥80% capacity after 500 cycles\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 60°C (Discharge), 0°C to 45°C (Charge)\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 \u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions\u003c\/td\u003e\n\u003ctd\u003e21.55mm x 70.3mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eApprox. Weight\u003c\/td\u003e\n\u003ctd\u003e65g\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/RELIANCE-RS40_Datasheet.pdf?v=1757089817\" target=\"_blank\" rel=\"noopener\"\u003eReliance RS40 21700 4000mAh 70A Battery Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"RELIANCE","offers":[{"title":"Default Title","offer_id":44845535363129,"sku":"RELIANCE-RS40","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/0125\/3945\/files\/RELIANCE-RS40_d61c898e-1137-412b-9c3a-7826396ca3d4.jpg?v=1776370603"}],"url":"https:\/\/imrbatteries.com\/collections\/reliance-21700-batteries.oembed","provider":"IMR Batteries","version":"1.0","type":"link"}