I built a 12s12p (42V, 31Ah) 2600mAh battery pack that I want to charge. A BMS is connected.
I tried to use my little and lightweight ESK8 charger (41V, 2A) charger and I have the feeling that is doesn’t charge. Neither directly on the plus and minus nor via the BMS.
Is the charger too weak?
Thanks for your help