About a year ago I assembled a 12v 200ah battery with cells sourced from AliExpress and an Overkill Solar BMS. Trying to charge this battery using a bench power supply and getting a constant over-voltage alert. With no load and not charging, I get a voltage difference of 0.004v. When applying current to charge, 1 cell is jumping to 3.84v while the rest are at 3.31v. Charging at 14.0v, 5 amps. Anything I can do to save this cell or is it toast?
1 overvoltage cell
- Thread starter Dizzyfun
- Start date
sunshine_eggo
Happy Breffast!
What have you been doing with it since "about a year ago."?
Triple check that all connections are good, including sense wires, and that no shrink or washers are in the current path.
Triple check that all connections are good, including sense wires, and that no shrink or washers are in the current path.
