"This thread is Very Old... But
I use Rechargeable NiMH in my Ovations and they work just fine.
Just change them when they little light tells you to.
You may have to change them more frequently... but they are rechargeable."
Hey "Old Man" Hows the Ovation Bass playing coming? I played an open mic a few nights ago and the guy running it has an Ovation like yours, the black one witht he holes on the upper bout...his sounded great plugged in. Edward