I wrote: >> The 400/500 'Books use a flat pack (part # 616-0114 on the pack) of >> four rechargable cells (VL2330 cells.) The later TiBooks use a >>single LiIon cell (marked MH2210) to which Lisbeth Zachs <zachs at swedenmail.com> replied: >Thanks for detailed information. :-) > >Where do you obtain this sort of information since I couldn't even find=20= > >confirmation about an existing internal battery on Apples site? Is it >because you're working with service of Apple computers or am I doing >something wrong when searching Apples site? You're welcome. This info is not available from any public Apple web site, so it's no wonder you weren't able to find it. I have a bunch of these 'Books in various stages of disassembly and repair, so I was able to just grab the appropriate bits and copy down the info. Dan K ................................. http://macdan.n3.net/ carracho://dankephoto.dhs.org:9700 hotline://dankephoto.dhs.org:9500 .................................