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Charging 39 NiMH cell battery pack


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Have you ever heard about a charger charging 39 NiMH cell battery pack?

Looks like usual charger charge up to 24 cells max?

If this kind of charger is not available at all, is there a way I can modify an existing charger to do the job? or can I just add a voltage divider to the battery and charge it by using a normal charger?


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My AA size Ni-MH cells measure 1.4V after charging slowly all night. Therefore 39 of them would require a charger output voltage of at least 54.6V plus more volts for the current limiter. A charger for a 48V lead-acid battery would probably have enough volts but the current would be excessive. A current-source circuit would need to be added to reduce the current.

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