Rechargeable Battery
What happens if you charge a rechargeable battery at a high voltage?
I have 2 1.2V rechargeable batteries and a 5V power source.
Will current be lost and will it damage the power source or the battery?
It is only charging at 5mA while the rechargeable is 800mAh
Depends on several varibles, like the current rateing of the charger and of the batteries. The 5 v is too high and can overcharge and overheat the batteries and shorten their life cycle. So the charging has to be monitered. People do use higher voltage chargers to “quickcharge” their bateries, but most of those are so called “smart chargers” and divert the current from the batteries when they reach full charge and indicate that charging is done. I don’t know the mahr size of your batteries or the output of your charger and as I am using a Casio Brigade in mobile mode, ( my computer is down at the moment so this is all I have) I can’t get back to a question once I post an answer so if you add later info I can’t use it. So all I can add is try it and keep checking the temp of the batteries. As soon as they begin to get hot to the touch, stop charging them.
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