Since the battery for my PowerBook 230 Duo wouldn't hold a charge, I decided to take it apart. Now I'm staring at 10 NiMH cells that I need to replace. Unfortunately the cells have no markings on them. They are simply metal cylinders wrapped in green plastic coating.

On this website I found some minimal information about the "Type 1" battery I am trying to rebuild:

http://support.apple.com/kb/TA32393?viewlocale=en_US

and this site gives general rebuilding tips:

http://www.fenestrated.net/~macman/DuoBattery/index.html

but what I need is the cells with which to rebuild the battery. Does anyone here know of a source for these NiMH cells? Or does anyone perhaps know the specs for each individual cell... voltage, power capacity, etc.?