{"product_id":"5000mah-21700-battery-cells","title":"5000mAh 21700 Battery Cells","description":"\u003cp\u003eThese are genuine BAK N21700CG-50 battery cells. They are not pulls, rewraps, or recycled cells. BAK is an established manufacturer that supplies cells for major e-bike and energy storage brands. These are perfect for battery pack builds, solar installs, e-bikes, and DIY power projects.\u003c\/p\u003e\n\u003cp\u003eThe backstory for these particular cells is they were purchased by an EV battery company that hoped to build hot-swappable battery packs for EVs to minimize charging times. As fast charging has gotten faster and faster, I don't think that panned out that well.\u003c\/p\u003e\n\u003cp\u003eEach cell will arrive\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epre-charged to ~3.6V\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBAK N21700CG-50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e21700 (≈21×70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.60V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.20V max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Cutoff:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRated 5000 mAh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Charge Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Continuous Discharging Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e10A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemistry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNCA Li-ion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFlat Top\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e🔋Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCustom battery packs (e-bikes, scooters, power tools)\u003c\/li\u003e\n\u003cli\u003eEnergy storage \/ solar backup systems\u003c\/li\u003e\n\u003cli\u003eHigh-capacity portable power \/ DIY UPS\u003c\/li\u003e\n\u003cli\u003eHobbyist electronics needing reliable, large-capacity cells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u0026gt; ⚠️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eDisclaimer:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and\/or without a BMS, may cause severe injury and damage. I am not responsible for any injuries caused by lithium ion batteries - use at your own risk.\u003c\/p\u003e","brand":"PCB Studios","offers":[{"title":"Default Title","offer_id":42818023653451,"sku":"Z881999","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/4004\/1291\/files\/IMG_02301x1_027a28c4-651b-4506-b520-23d826f67aab.jpg?v=1783473485","url":"https:\/\/www.pcb-studios.com\/products\/5000mah-21700-battery-cells","provider":"PCB Studios","version":"1.0","type":"link"}