JBD-SP04S020 is designed by Dongguan jiabaida Electronic Technology Co., Ltd. It is an intelligent protection board scheme specially designed for 4 series battery packs of start-up battery and electric energy storage products. It is suitable for lithium batteries with different chemical properties, such as lithium ion, lithium polymer, lithium iron phosphate, etc. The protection board has strong load carrying capacity and the maximum continuous discharge current can reach 200A (200A version).

● 4 cell series protection 

● Various protection functions for charging and discharging 

● Discharge over current, short circuit protection functional processes of hardware 

● Discharge control switch and predischarge function 

● Over voltage, under voltage, temperature and overload protection function processing of software 

● Accurate SOC calculation with automatic SOC learning function 

● RS485 communication function can read all battery data in real time and upgrade online.

● RS485 and UART can work simultaneously.

● Low temp charge cut-off function