Re: High Voltage NiMH battery charger
you may also want to consider making it possible to balance the batteries over time. As you probably know the cells will not always have the same exact capacity and voltage. Over time some batteries will become discharged before others and could suffer polarity reversal.
Most remote control car/airplane/etc chargers have the capability to re-balance the pack. Or they use an external balancer. In order to do this you would need to extend a wire from each cell to a balancing plug. This is usually a low current process so smaller gauge wire is used.
I see this more in the LiPo type batteries so I'm not sure if NiMh types would benefit from it.
Just more to consider
Dwight
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