I have a 40ah LifePO4 battery, BMS died
I have a 40ah LifePO4 battery, sadly it recently developed a BMS fault, so that despite charging, it would only measure 5.1v, with no current. After taking it apart, lots of careful circular saw, I found that unplugging, and plugging in the BMS again fixed it. The cells themselves are decent, but I wish they'd use a more reliable BMS, or had an external reset button.