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Old 11-07-2022, 02:41 PM   #44
Pat911
Gone Wild
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Join Date: Dec 2020
Location: Melbourne, Australia
Posts: 1,942
Default Re: Battery bms shutoff

Quote:
Originally Posted by augiedoggy View Post
I believe a balancer can help with this also if you have a weaker cell as it will transfer power from adjacent cells.
You don’t want a balancer operating on a discharged battery if you’re normal balancing strategy is to top balance, which is 99% of cases. Bottom balancing is an option but very rarely used.

If your pack is top balanced there will always be one cell that is discharged first. Your cells will never be identical. If you then start moving energy between cells when discharged, you will mess up your top balance and when recharging, that one cell that you pumped energy in to will hit the high volt cutoff first and cause all the other cells to stop charging.

Cheers
Pat.
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