Jiabaida BMS 6S 7S 8S 9S 10S 20A 30A 40A 50A Lifepo4 Battery BMS With Uart/485

 SP10S020 is designed by Dongguan jiabaida Electronic Technology Co., Ltd. It is an intelligent protection board scheme specially designed for 7 series battery packs of power tools, medical batteries and other 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 150A.   
1) 4 cell series protection 
2) Various protection functions for charging and discharging 
3) Discharge over current, short circuit protection functional processes of hardware 
4) Over voltage, under voltage, temperature and overload protection function processing of software
5) Accurate SOC calculation with automatic SOC learning function 
6) UART communication(External Bluetooth function) 
7) Hardware discharge over-current, short-circuit protection function processing

matters need attention.
Please note: When assembling the wiring, weld the cable and the cell correctly, connect the B- of the PCM with the total negative pole of the cell, and then insert the cable into the needle base on the PCM. (Note: different connection modes for different strings, and different connection modes for the same port)

1. What type of charger should I choose?

Lithium battery must choose specific charger, do not use Charger for Leadacid battery, for leadacid charger may have MOS with high pressure breakdown protection, which will not protect of BMS over charge. Life Po4 battery charger voltage=battery string No.X3.6V, while Li-ion battery charger voltage=Battery string No.X4.2V.

2.The relationship between Battery capacity and BMS current?

There is no direct relationship between Battery capacity and BMS current, big capacity doesn`t mean a big battery, but rely on continue current, that is to say if your engine is powerful, your should choose high current of BMS, it is not relied on batterycapacity.

3.Whether my BMS damaged?

If you want to judge if the BMS is damaged, please take the folowing steps, to test if each cell voltage is the same with
voltmeter? if the cell voltage difference is over 1.0V, the fault is displayed that it cannot run far, no power supply at the
start range, short charge time, all these issues are almost caused by battery cells, if BMS damaged is displyed as no charge, no discharge, no discharge while the battery has voltage.