JK Smart BMS 3S-8S 100A LiFePO4 B1A8S10P

The JK Smart BMS (JK-B1A8S10P) is a professional-grade, fully programmable Battery Management System designed for 3S–8S lithium battery packs including Li-Ion, LiFePO4, and LTO chemistries. Built for DIY energy storage builders, solar enthusiasts, EV hobbyists, and off-grid system integrators, it delivers 100A continuous charge/discharge current with a 200A peak — making it well-suited for 1000W–1500W inverter applications.

At its core is a 1A active balancer that continuously transfers energy between cells to maintain tight voltage matching, reducing capacity loss and extending overall cycle life. Built-in Bluetooth enables real-time monitoring and full parameter configuration directly from the JK BMS app on Android or iOS. RS485 communication allows integration with inverters, SCADA systems, and PC software for advanced installations.

All critical protection functions are covered, including overcharge, over-discharge, overcurrent, short circuit, and over-temperature — with SOC estimation accuracy within 8%.

Specification:

• Model : JK-B1A8S10P
• Battery Strings : 3S–8S
• Compatible Chemistry : Li-Ion, LiFePO4, LTO
• Continuous Current : 100A
• Peak Current : 200A
• Active Balance Current : 1A
• Balance Type : Active (Energy Transfer)
• Cell Voltage Detection Range : 0–5V (error < 10mV)
• Total Voltage Detection Range : 0–100V (< 0.5% FSR)
• Current Sense Range : -150A to 300A (error < 0.5% FSR)
• SOC Estimation Accuracy : Error < 8%
• Temperature Detection Range : -40°C to 125°C
• Wireless : Bluetooth (Android / iOS)
• Communication : RS485
• Port Type : Common Port (Same Port)
• Power Supply : Self-powered from battery pack