I bought some cheap Ebay BMS boards for my 4s LiFePO4 batteries that I intend to put into motorcycles. The model number is HX-4S-F100A, but I cannot find any instructions on how to use these other than the graphic printed on the label.
C- is supposed to be connected to the charger, and P- is supposed to be connected to the load. My question is, can these be connected together, since in a vehicle both the load (starter/accessories) and charge (alternator) use the same connection? I haven't found a schematic or anyone else showing how they connected the board, so I don't know if those connections can be shared.
Finally, would this board provide balancing if only the balance leads are connected?
![](https://image.pushauction.com/0/0/b1417b0f-b8fc-4b37-a84a-df5cb7a6016f/f21f98c6-7c97-4a36-b4a1-bde2d2af3a00.jpg)