A few weeks ago my KS-32 battery died. Unable to find replacement battery with solder terminals. Since the concept of a hard-wired CMOS battery makes no sense to me, I bought a lithium battery holder from Radio Shack (270-430) and wired to a remote location in the keyboard. Removal of old battery requires removal of entire keyboard and main circuit board--quite a task. This battery holder will accept CR2016, CR2025, or CR2032 battery (all 3V). Next time the battery dies, I'll just pop out the old, and pop in the new.