Quote:
Originally Posted by Formula413
I was told that once the voltage stops increasing, that's when you stop charging, usually around 170 volts.
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In talking to someone with quite a bit of experience with NiMH chemistry, I'd say you might want to see if you can borrow that charger again.
The cell isn't charged until its voltage peaks, and then
declines slightly. So watching for the voltage of the pack to peak may fail to balance all the cells.
Quote:
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[one method of charging is to monitor] the change of voltage with respect to time and stop when this becomes zero, but this runs the risk of premature cutoffs.[15]
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Nickel Metal Hydride batteries - Wikipedia
With a relatively low current 350 mA grid charger, we would need to wait a long time for the last cell in the pack to peak & decline in order to bring things into balance if they've drifted out of whack.