{"product_id":"jk-b2a16s-active-balancer","title":"JKBMS Active Balancer JK-B2A16S — 2A 2~16S Battery Equalizer","description":"\u003ch2\u003eJKBMS JK-B2A16S — 2A Active Battery Balancer for 2~16S Packs\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eJK-B2A16S\u003c\/strong\u003e is a lightweight, high-precision active battery balancer engineered for 2 to 16 series battery packs. Weighing just \u003cstrong\u003e300g\u003c\/strong\u003e, it is the most compact mid-range balancer in the JKBMS lineup — yet delivers the same \u003cstrong\u003econstant 2A balancing current\u003c\/strong\u003e using ultracapacitor energy transfer technology, regardless of cell voltage difference.\u003c\/p\u003e\u003cp\u003eWhether you're building a 48V home ESS, a solar storage system, or a high-voltage EV pack, the JK-B2A16S keeps every cell in balance — quietly, efficiently, and without wasting energy as heat.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2A constant active balancing current\u003c\/strong\u003e — independent of cell voltage delta\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports 2~16S configurations\u003c\/strong\u003e — LiFePO4, Li-ion, LiPo, LTO, lead-acid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-precision voltage monitoring\u003c\/strong\u003e — ±3mV accuracy per cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth connectivity\u003c\/strong\u003e — monitor cell voltages, balancing status, and configure parameters via mobile app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional RS485 or CAN communication\u003c\/strong\u003e (one of two, select at order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional temperature sensor\u003c\/strong\u003e input\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLED Bluetooth status indicator\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-lightweight design\u003c\/strong\u003e — 157.6 × 99 × 18.5 mm, only 300g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo power-on switch\u003c\/strong\u003e — connects and starts balancing automatically\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCell count: 2S ~ 16S\u003c\/li\u003e\n\u003cli\u003eBalancing current: 2A (constant)\u003c\/li\u003e\n\u003cli\u003eCell voltage range: 1V ~ 5V\u003c\/li\u003e\n\u003cli\u003eVoltage accuracy: ±3mV\u003c\/li\u003e\n\u003cli\u003eExternal power supply: DC 24~70V (via V+ \/ V− terminals)\u003c\/li\u003e\n\u003cli\u003eDimensions: 157.6 × 99 × 18.5 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 300g\u003c\/li\u003e\n\u003cli\u003eCommunication: Bluetooth (standard) + optional RS485 or CAN\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInterface\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eP1\u003c\/strong\u003e — Balance \u0026amp; cell voltage connector: B0~B16 cell taps + V+\/V− power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP2\u003c\/strong\u003e — Temperature sensor input (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP3\u003c\/strong\u003e — RS485 \/ CAN communication port (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD1\u003c\/strong\u003e — LED Bluetooth status indicator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e48V ~ 60V home energy storage systems (ESS)\u003c\/li\u003e\n\u003cli\u003eSolar power stations and off-grid systems\u003c\/li\u003e\n\u003cli\u003eHigh-voltage e-bike and EV battery packs\u003c\/li\u003e\n\u003cli\u003eBase station backup power\u003c\/li\u003e\n\u003cli\u003eBattery pack maintenance and cell recovery\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWiring Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVerify all balance wire connections before powering on\u003c\/li\u003e\n\u003cli\u003eWhen used alongside a BMS protection board, connect V− to the BMS P− terminal\u003c\/li\u003e\n\u003cli\u003eNo power-on switch — the balancer starts working immediately upon connection\u003c\/li\u003e\n\u003cli\u003eExternal supply voltage must be within DC 24~70V range\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e📱 \u003cstrong\u003eBluetooth App:\u003c\/strong\u003e Available for iOS and Android — monitor cell voltages, balancing status, and configure parameters wirelessly.\u003c\/p\u003e\u003cp\u003e\u003csmall\u003e⚠️ \u003cstrong\u003eShipping Note:\u003c\/strong\u003e Default ships from China. US warehouse stock available upon request — US inventory levels may vary and cannot be guaranteed. Please contact us before ordering if US local shipping is required. WhatsApp: \u003ca href=\"https:\/\/wa.me\/18189383175\"\u003e+1 818 938 3175\u003c\/a\u003e\u003c\/small\u003e\u003c\/p\u003e\u003cp\u003eNeed help? Contact us via WhatsApp: \u003ca href=\"https:\/\/wa.me\/18189383175\"\u003e+1 818 938 3175\u003c\/a\u003e | Email: service@jkbms-ess.com\u003c\/p\u003e","brand":"JKBMS","offers":[{"title":"Default Title","offer_id":49553356062858,"sku":"JK-B2A16S","price":70.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/0591\/1434\/files\/JKBMS_JK-B2A16S_2A_Active_Battery_Balancer_for_2_16S_LiFePO4_Lithium_Battery_Packs.jpg?v=1781544544","url":"https:\/\/jkbms-ess.com\/en-eu\/products\/jk-b2a16s-active-balancer","provider":"JKBMS-ESS","version":"1.0","type":"link"}