BMS 40A 12s LiFePO4 - (Nr. 373)


I have bought the 12s 40A BMS. (for use with 12 headway cells) … 73—.html
It corresponts with the type 1 help diagram.

P+ (Discharge +)
P- (Discharge -)
B+ (Akku +)
B- (Akku -)
Ch- (Charge -)
Ch+ (Charge +)

Everything works perfect. But Charging does not work on the wire connected to CH- and CH+
Should I Try CH- AND B+ instead ?
Also B- did not have a xhr pin. So I hard wired this one.


Problem solved.
It was the connection in the andersson pole. of the charging cable.
ch+ and P+ are essentially the same connections anyway.