Just finished giving a single mom the bad news about her son's Ibanez Acoustic/Electric guitar.
Seems that she tried to save some money by buying a battery charger and two 9 Volt rechargeable batteries.
Well, today the built-in electronics no longer work on all the amps I have tried it on. No battery light no nothing.
Called a buddy of mine who owns Texas Music here in Texas. He said that rechargeable 9 Volt Nimh batteries are like no other rechargeable in that when its power is almost all used up it can in certain brands discharge the remaining power, frying any really sensitive electronics.