Peter Brigg wrote: ↑
May 14, 2018 6:55 pm
The pack is driving a 350w motor so my arithmetic tells me watts divided by voltage equals amps so approximately 10amps is the theoretical figure for the BMS. Plainly I need to go a lot higher than that-perhaps a 36v 60amp BMS.
Can your cells (and the internal and external battery wiring) handle 60A? If not, you sure dont want a BMS that can output that much.
You want a BMS that will limit current to at most whatever the max the cells and wiring can handle. ANy more than that and the cells and/or wiring can be damaged by pulling more current from them than they are designed for (if the motor/controller happens to be able to do so).