13-11-2022, 04:23 PM
If you can get it apart enough to measure each cells voltage go an measure. Any below 2V are probable really dead but it is worth trying a current limited PSU set to 4.20V and about 1C (Ah capacity) until the charge current drops to about 1/10th of C. Do all the cells to maintain balance. Lithiums are not that dangerous if treated with a bit of respect, worth a read of Battery Universities site https://batteryuniversity.com/article/bu...eries-work
An aside, in about 2000 my battery pack design was the first for a "Japanese cell maker" to allow direct use of their "naked" cells.
An aside, in about 2000 my battery pack design was the first for a "Japanese cell maker" to allow direct use of their "naked" cells.
I want a PNP valve!
