{"product_id":"jk-b2a8s20p-4s-8s-200a-bms","title":"JK B2A8S20P 4S-8S 200A BMS with 2A Active Balance Current","description":"\u003cstyle\u003e\n  .jk-bms-container {\n    font-family: inherit;\n    color: #333;\n    line-height: 1.6;\n    margin: 0 auto;\n  }\n  .jk-bms-title {\n    font-size: 24px;\n    color: #1a202c;\n    border-bottom: 2px solid #0066cc;\n    padding-bottom: 8px;\n    margin-bottom: 20px;\n  }\n  .jk-bms-container h2 {\n    font-size: 18px;\n    color: #2c3e50;\n    background-color: #f7fafc;\n    padding: 8px 12px;\n    border-left: 4px solid #0066cc;\n    margin-top: 28px;\n    margin-bottom: 14px;\n  }\n  .jk-bms-container h3 {\n    font-size: 15px;\n    color: #0066cc;\n    margin-top: 16px;\n    margin-bottom: 6px;\n  }\n  .jk-bms-container p, .jk-bms-container li {\n    font-size: 14px;\n    color: #4a5568;\n  }\n  .jk-bms-container ul {\n    padding-left: 20px;\n    margin-bottom: 12px;\n  }\n  .jk-bms-table-wrap {\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .jk-bms-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14px;\n  }\n  .jk-bms-table th, .jk-bms-table td {\n    border: 1px solid #e2e8f0;\n    padding: 10px;\n    text-align: left;\n  }\n  .jk-bms-table th {\n    background-color: #edf2f7;\n    color: #2d3748;\n  }\n  .jk-bms-badge {\n    background: #e6fffa;\n    color: #234e52;\n    border: 1px solid #b2f5ea;\n    padding: 1px 6px;\n    border-radius: 3px;\n    font-size: 11px;\n    font-weight: 600;\n  }\n  .jk-bms-box {\n    background-color: #ebf8ff;\n    border-left: 4px solid #3182ce;\n    padding: 12px 16px;\n    border-radius: 4px;\n    margin: 15px 0;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"jk-bms-container\"\u003e\n\u003ch2\u003e1. BMS Applicable Chemistry\u003c\/h2\u003e\n    \u003cp\u003eThe \u003cstrong\u003eJK B2A8S20P\u003c\/strong\u003e is a versatile, high-performance battery management system fully compatible with all mainstream rechargeable lithium battery chemistries. Designed with pre-configured voltage parameters and custom threshold adjustments, it provides optimal management across different cell profiles:\u003c\/p\u003e\n    \n    \u003ch3\u003e• LiFePO4 (Lithium Iron Phosphate)\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.2V per cell\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIdeal For:\u003c\/strong\u003e Long cycle life energy storage systems (ESS), solar setups, off-grid power, and marine applications.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e• Li-ion \/ Ternary \/ NMC (Lithium Nickel Manganese Cobalt)\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 3.6V – 3.7V per cell\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIdeal For:\u003c\/strong\u003e High energy density applications such as e-scooters, light EVs, golf carts, and portable power stations.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e• LTO (Lithium Titanate Oxide)\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 2.3V – 2.4V per cell\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIdeal For:\u003c\/strong\u003e Ultra-fast charging, extreme cold environment performance, and heavy industrial use.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003e2. BMS Applicable Cell Series (S) Count\u003c\/h2\u003e\n    \u003cp\u003eFlexible configuration allows precise customization for low to medium voltage custom battery bank builds:\u003c\/p\u003e\n    \n    \u003cdiv class=\"jk-bms-table-wrap\"\u003e\n        \u003ctable class=\"jk-bms-table\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eBattery Chemistry\u003c\/th\u003e\n                    \u003cth\u003eSupported Series Count\u003c\/th\u003e\n                    \u003cth\u003eTypical System Voltage Range\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eLiFePO4\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e3S – 8S\u003c\/td\u003e\n                    \u003ctd\u003e9.6V – 25.6V (Ideal for 12V \/ 24V Systems)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eLi-ion (NMC)\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e3S – 8S\u003c\/td\u003e\n                    \u003ctd\u003e11.1V – 29.6V \/ 28.8V\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eLTO\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e7S – 8S\u003c\/td\u003e\n                    \u003ctd\u003e16.1V – 18.4V\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003ch2\u003e3. BMS Features\u003c\/h2\u003e\n\n    \u003ch3\u003e• 2A Active Energy-Transfer Balancing\u003c\/h3\u003e\n    \u003cp\u003eUnlike traditional passive BMS units that waste excess energy as heat, the JK B2A8S20P features continuous 2A active energy-transfer balancing. It actively shifts energy from high-voltage cells to low-voltage cells, keeping cell differential pressure under control to maximize capacity and extend battery lifespan.\u003c\/p\u003e\n\n    \u003ch3\u003e• High Current Capacity \u0026amp; Ultra-Low Resistance\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eContinuous Current:\u003c\/strong\u003e Up to 200A continuous charge and discharge handling.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePeak Surge Current:\u003c\/strong\u003e Up to 400A peak instantaneous discharge.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUltra-Low Loop Resistance:\u003c\/strong\u003e ≤ 0.35 mΩ for optimized energy efficiency and minimal thermal output.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e• Smart Mobile App \u0026amp; Bluetooth Monitoring\u003c\/h3\u003e\n    \u003cp\u003eIntegrated Bluetooth module allows seamless wireless monitoring and full parameter configuration via iOS and Android apps. Easily monitor real-time cell voltages, total pack voltage, current, state-of-charge (SOC), and temperature readings.\u003c\/p\u003e\n\n    \u003ch3\u003e• Multi-Layer Protections \u0026amp; Thermal Management\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eVoltage Protection:\u003c\/strong\u003e Fully customizable Overcharge and Overdischarge protection thresholds.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCurrent \u0026amp; Short Protection:\u003c\/strong\u003e Configurable overcurrent protection delays plus 5 µs ultra-fast short-circuit response.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTemperature Sensing:\u003c\/strong\u003e 1 internal MOS sensor and 2 external NTC temperature probes (expandable to 4 probes) for high\/low temperature cutoffs.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e• Advanced \u0026amp; Optional Functions\u003c\/h3\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cspan class=\"jk-bms-badge\"\u003eOptional\u003c\/span\u003e \u003cstrong\u003eHeating Function:\u003c\/strong\u003e Drives up to 20A heating elements for low-temperature charge protection in freezing weather.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cspan class=\"jk-bms-badge\"\u003eOptional\u003c\/span\u003e \u003cstrong\u003eCommunication Interfaces:\u003c\/strong\u003e RS485 and CANbus support for inverter or display connectivity.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEmergency Mode:\u003c\/strong\u003e 30-minute override feature allows temporary operation during fault triggers to prevent roadside lockouts.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSmart Sleep:\u003c\/strong\u003e Automatically enters low-power standby (\u0026lt;1300mW) during extended inactivity to preserve battery power.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003e4. Package List\u003c\/h2\u003e\n    \u003cdiv class=\"jk-bms-box\"\u003e\n        \u003cp style=\"margin-top:0; font-weight:600;\"\u003eWhat's included in your order:\u003c\/p\u003e\n        \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003e1 × JK B2A8S20P Smart Active Balance BMS\u003c\/strong\u003e (Dimensions: 152.25 × 127.26 × 15.6 mm, Weight: ~424g)\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003e1 × Balance Cable Harness\u003c\/strong\u003e (XH-10AW 2.54mm connector with sampling leads)\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003e2 × External NTC Temperature Probes\u003c\/strong\u003e (HY2.0-4P interface)\u003c\/li\u003e\n            \u003cli\u003e\u003cstrong\u003e1 × Activation Switch Cable\u003c\/strong\u003e\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003e1 × Set of M6 Terminal Screws\u003c\/strong\u003e (For B- and P- power terminals)\u003c\/li\u003e\n            \u003cli\u003e\u003cstrong\u003e1 × Quick Start Guide \u0026amp; App Download QR Card\u003c\/strong\u003e\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e","brand":"JK","offers":[{"title":"Default Title","offer_id":49724835266712,"sku":"EP-JKP2A8S20P","price":130.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/6052\/2904\/files\/JKB2A8S20PBMS_1.jpg?v=1787319115","url":"https:\/\/elemparts.com\/products\/jk-b2a8s20p-4s-8s-200a-bms","provider":"EP Energy","version":"1.0","type":"link"}