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inverter mppt charger appears to have over-charged battery

ArranP

New Member
Joined
Nov 5, 2020
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71
I have 2x 48v 10kw lifpo4 batteries, coming back from 2 months away, I found that all of the cells from one of the batteris have swollen and not by a little bit.

Looking at the logs it appears the mppt charger at one stage was charging 62v and then died, why the BMS did not intervene ?

I have swapped out the boards and re-commissiond the inverter charger and connected the battery with the non-swollen cells, its been running fine for the last 5 days.

In the meantime I've been looking through youtube with what to do about the battery with the swollen cells.

I checked the voltages of all cells they are all around 2v

I have reconnected the swollen battery with the non-swollen battery and the inverter charger is charging them both, I've checked for heat and is currently charging fine.

Comments are welcome.
 
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