{"product_id":"jkbms-smart-bms-4s-8s-12v-24v-300a-2a-active-balance-built-in-bluetooth-with-can-rs485-pcb-battery-protection-board-for-lifepo4-li-ion-lto-battery-pack-jk-b2a8s30p","title":"JKBMS JK-B2A8S30P | 300A Smart BMS for High-Current RV \u0026 Backup Power | 4S-8S LiFePO4 Li-ion | 2A Active Balance","description":"\u003ch2\u003eMaximum Current for Mobile Power — JKBMS JK-B2A8S30P 300A Smart BMS for 4S–8S Systems\u003c\/h2\u003e\n\n\u003cp\u003eWhen your 12V or 24V lithium battery system needs to handle 300A continuous — think high-draw RV inverters, large marine house banks, or heavy-duty backup power — the JK-B2A8S30P is built for the job. With 2A active balancing and Bluetooth + UART for LCD display monitoring as standard, it delivers the current capacity and cell management precision that high-performance low-voltage systems demand.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible chemistries: LiFePO4 \/ Li-ion \/ LTO\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eJK-B2A8S30P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Configuration\u003c\/td\u003e\n\u003ctd\u003e4S – 8S (12V – 24V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Current\u003c\/td\u003e\n\u003ctd\u003e300A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActive Balance Current\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Communication\u003c\/td\u003e\n\u003ctd\u003eBluetooth + UART (LCD display port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Chemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4, Li-ion, LTO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eOver-charge, Over-discharge, Over-current, Short-circuit, Over\/Under-temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003e300A + 2A Active Balance — Built for Serious Low-Voltage Applications\u003c\/h2\u003e\n\n\u003ch3\u003e⚡ 2A Active Balancing at 300A — Protecting a High-Investment Pack\u003c\/h3\u003e\n\u003cp\u003eA 300A 12V or 24V lithium pack is a significant investment. The JK-B2A8S30P's 2A active balancer continuously transfers energy between cells — keeping every cell matched through thousands of high-current cycles.\u003c\/p\u003e\n\n\u003ch3\u003e🛶 High-Draw RV \u0026amp; Marine Systems\u003c\/h3\u003e\n\u003cp\u003eRunning a 3000W+ inverter, air conditioning, or multiple high-draw appliances from a 12V–24V lithium bank requires a BMS that won't flinch at 300A sustained loads.\u003c\/p\u003e\n\n\u003ch3\u003e🔋 Heavy-Duty Backup Power\u003c\/h3\u003e\n\u003cp\u003eFor 12V–24V backup power systems protecting critical loads, 300A capacity means your system can handle sudden high-current demands without tripping.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWho Is This BMS For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🛶 \u003cstrong\u003eHigh-draw RV \u0026amp; marine house battery systems\u003c\/strong\u003e (12V–24V, 300A)\u003c\/li\u003e\n\u003cli\u003e🔋 \u003cstrong\u003eHeavy-duty backup power systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e🔦 \u003cstrong\u003eLarge portable power stations\u003c\/strong\u003e and off-grid installations\u003c\/li\u003e\n\u003cli\u003e🏭 \u003cstrong\u003eOEM manufacturers\u003c\/strong\u003e of 12V–24V 300A lithium battery packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCompare Versions — Find the Right Fit\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eStandard (This Model)\u003c\/th\u003e\n\u003cth\u003eHC Version\u003c\/th\u003e\n\u003cth\u003eHCR Version\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUART (LCD port)\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAN Bus\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Film Control\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoft Parallel (PLINK Module)\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHard Parallel (Parallel Module)\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuzzer Alert\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e❌\u003c\/td\u003e\n\u003ctd\u003e✅\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e📩 Not sure which version fits? \u003ca href=\"\/en-eu\/pages\/contact\"\u003eContact us\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCustom Configuration Available\u003c\/h2\u003e\n\u003cp\u003eAll JKBMS products support feature customization for OEM orders — including communication interfaces, protection thresholds, balance parameters, and hardware configuration. \u003cstrong\u003e📩 \u003ca href=\"\/en-eu\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss your custom requirements.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eOEM \/ ODM \u0026amp; Bulk Orders\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e📩 For wholesale pricing, MOQ, and custom configurations, please \u003ca href=\"\/en-eu\/pages\/contact\"\u003econtact us\u003c\/a\u003e directly.\u003c\/strong\u003e\u003c\/p\u003e","brand":"JKBMS","offers":[{"title":"JK-B2A8S30P","offer_id":47769219760266,"sku":"JK-B2A8S30P","price":113.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/0591\/1434\/files\/B2A8S30P_c159f36e-55c6-413d-aed5-25ed130aa43c.jpg?v=1775495695","url":"https:\/\/jkbms-ess.com\/en-eu\/products\/jkbms-smart-bms-4s-8s-12v-24v-300a-2a-active-balance-built-in-bluetooth-with-can-rs485-pcb-battery-protection-board-for-lifepo4-li-ion-lto-battery-pack-jk-b2a8s30p","provider":"JKBMS-ESS","version":"1.0","type":"link"}