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post #6 of Old 12-14-2019
john61ct
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Re: Charging outboard battery onboard

Find out what the "start-balance" voltage setpoint is on the internal BMS, and if it can be adjusted.

You need to "float" at the end of the charge cycle, or at least above that V point, long enough to finish getting the cells balanced.

So while you're at it, see if there's a way to see voltages at the per-cell level so you can verify that.

The higher that voltage needs to be the more stressful to the cells, so best to do that phase at a low current.
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