I'm planning to make a NNiMH 9.6V (170mAH) charger and my question is how much voltage should I apply to the battery when charging? Would 11 Volts @ 17mA be good? or does it have to be 9.6V @17mA the same rating as the battery?
I'm planning to make a NNiMH 9.6V (170mAH) charger and my question is how much voltage should I apply to the battery when charging? Would 11 Volts @ 17mA be good? or does it have to be 9.6V @17mA the same rating as the battery?
They should be charged with a constant current, so the voltage doesn't matter (as long as it's a fair bit higher than the battery voltage). I would suggest a source voltage of around 20V, with a constant current source of 17mA feeding the battery.