So, "a friend of mine" accidently put a reverse charge on his JR transmitter by plugging it up to a Futaba charger. After an all night reverse charge, the mistake was realized and the battery pack actually read over 7 volts in reverse polarity!

The question now is, is the battery pack junk? Also, any chance the transmitter was damaged by this mistake?

Learning something new every day,

Flying Fever