I am building a series of 13s LiPo battery packs, each with a BMS with B- P- and C-. They are to be charged with a regulated source from a PV array. I know this likely depends on the specific BMS, but is it a good idea to charge the batteries from the positive terminal through to C- whilst current is being drawn through P-?
It's a 13s pack, so 48v nominal, and I'm using these BMS boards. The C- is the return path for charge current, other end goes directly to the battery + terminal.