I'm running a 4S 271Ah bank, built from bare cells and using a 200A JBD BMS. Very happy with it, only thing is, it's a bit smaller than I need. Charging is from solar only, using two MPPTs that top out at about 45A max.
I also have a little Sterling 60Ah drop-in with integral BMS. It's non Bluetooth so a bit of a black box.
What would happen if I hooked it up in parallel with the bigger battery? Should I ensure both are at the same voltage before connecting? Or is it just a really bad idea due to the size difference?
I also have a little Sterling 60Ah drop-in with integral BMS. It's non Bluetooth so a bit of a black box.
What would happen if I hooked it up in parallel with the bigger battery? Should I ensure both are at the same voltage before connecting? Or is it just a really bad idea due to the size difference?