using HCX-D223 10S-80A BMS
I didn’t connect balance wires yet… I’m trying to use it to charge the battery and as an e-switch only for now.
two questions,
during charging, it’s main heat sink is getting very hot (about 70-80 degrees Celsius) - is this normal?
it’s e-switch is on, but output gives me some weird voltage, 28ish volts and falling as I’m measuring, as if I’m measuring a small capacitor. battery voltage is in the normal range, 38-ish volts
I’d expect balance wires to become relevant when battery is fully charged, but is the whole device behaving weird because balance wires are not connected?
okay – I’ll agree that one can treat the batteries like that and get away with it.
what about the BMS? I don’t think they would do well, dumping the current through without the leads attached.
the BMS would be thinking all the cells are at 0