ORIGINAL: zman5000
just charge the new battery until it's warm, and you won't have any problems, though with nimh batteries it's a good idea to let it cool off after a run before you recharge it.
The Charger I have only charges with a 15minutes dial timer. If the new battery is not warm after the 15 minute time keep going till its warm? Thisdoesn'tsound safe. How am I supposed to know if its fully charged or not if I need to charge till it's warm?
Here it is.