Charging a 4200mah pack at 3amps shouldn't have caused probs. Did you notice pack was getting hot? Are you sure you got the charger set up right?


If your's vented liquid, it prob got up to 150-160F where pack should never get hotter than 110-115F.

NiMh cells will charge up to close to 1.5v/cell so 8.1 - 8.9v for the pack is not high, that's about where it should be. If pack didn't get real hot (only reason it should vent), this begins to sound like you had a bad pack from the start.


Welcome to RC Tech, btw.....