I have a self-built 280Ah 48v battery pack, that was working great. I initially did a top balance, parallel to 3.65v
For a couple weeks now I've been having issues with one cell, #16 which happens to be my main positive for the entire battery. At the top end when the inverter is pushing the last bit of juice to fully charge the battery, cell No. 16 is running away from the rest and the BMS is tripped at 4.0v
Is there any way to fix this other than try:
1. Parallel all the cells again and top-balance again to 3.65v
2. Swap cell No. 16 with anther cell in the pack and see if that helps any
3. Install an active balancer on the pack if options 1 and 2 do not resolve the issue
Any other ideas?
For a couple weeks now I've been having issues with one cell, #16 which happens to be my main positive for the entire battery. At the top end when the inverter is pushing the last bit of juice to fully charge the battery, cell No. 16 is running away from the rest and the BMS is tripped at 4.0v
Is there any way to fix this other than try:
1. Parallel all the cells again and top-balance again to 3.65v
2. Swap cell No. 16 with anther cell in the pack and see if that helps any
3. Install an active balancer on the pack if options 1 and 2 do not resolve the issue
Any other ideas?