Surferdudemi
Solar Enthusiast
- Joined
- Dec 18, 2020
- Messages
- 245
I've got two of the EEL battery boxes. The first was assembled with 271AH cells and I recently built another with the Envision 304 grade B cells. The new one is the latest version of the larger box. It has had strange balancing issues. Groups of 4 or 8 cells are balancing to the same voltage in the group, but the groups balance to different levels between them. And this issue doesn't stay the same cycle to cycle. Cells 1-8 would be balanced, and 9-16 would be balanced, but the two groups would be different, which causes cut-out and overvoltage issues. Then cells 5-8 were balanced, but didn't match other groups of 4.
Tried working on the with Howard a few times, but the reply was basically to wait and the BMS would take care of it (even with the pack turned off, which seems odd). So I've got no resolution to this.
Has anyone else had this problem and solved it?
Tried working on the with Howard a few times, but the reply was basically to wait and the BMS would take care of it (even with the pack turned off, which seems odd). So I've got no resolution to this.
Has anyone else had this problem and solved it?