[Robida (OP)]

Just finished giving a single mom the news about he son maybe have a bad Acoutic/electric guitar.

Seems that she tried to save some money by buying a battery charger and two ebl 9V rechargeable batteries. She knows this brand from facebook liveshow, and got one 20% off discount code.

Know from my friend, he put another brand's 9V batteries (not ebl brand 9V rechargeable)into his guitar last week. Well, today the built-in electronics no longer work on all the amps he has tried on. No battery lighting nothing.

Called a buddy of mine from owns Texas Music here in Texas. He said the rechargeable 9 volt Nimh batteries are like no other rechargeable in that its power is almost all used it up can in certain brands discharge the remaining power, frying any sensitive electronics.

It would not affect most CD players and such but it seems to have burned out the electronics in guitar.

Since the guitar is less than 1 year old I have suggested that he get a hold of guitar brand, since Guitar Central says they will not warranty it since he used a rechargeable in it.

Can I put these ebl 9V batteries in my guitar? Great thanks for any suggestion.

[alancalverd]

Not a sensible option in the first place. The current drain in a guitar is very small even when switched on, so battery life is determined by the self-discharge and corrosion characteristics of the battery - long-life alkalines are far better in both respects. I get about 2 years' worth of rehearsals and gigs from a 9V Duracell.

That said, the guitar should work OK even without a battery, though you won't get any boost effects. So if it doesn't work, it's possible that the electronics have been corroded, the pickup selector switch has failed, the battery connector has gone open-circuit (another reason for not using rechargeables - the connectors don't last too long if you keep taking them off!)  or that the output jack is broken. If the LED doesn't light up, the problem is in the battery - jack - on/off switch part of the circuit. or maybe the lad has tried to connect a NIMH battery back to front with the jack in place - that could indeed fry everything including the LED. Seen it all, in the last 70 years of playing.

[thugtomas]

He said the rechargeable 9 volt Nimh batteries are like no other rechargeable in that its power is almost all used it up can in certain