ORIGINAL: joco1
it was a 4.8 ni cad battery and i was just useing the spektrum wall charger that came with my dx7 radio not sure the capacity of the battery
If you were using the wall wart charger it's HIGHLY unlikely that you did this to the pack from charging. As was said, it's more than likely a mechanical short in the pack. Someplace the two wires touched each other and fried your pack.
Ken