> It is the original battery that came with the icebook. That makes it > 3 years and 2 months since my purchase of the ibook new. I just keep > the battery in the ibook all the time and it charges when the AC > adaptor is used, which is most of the time. When I do use battery > power and let it totally discharge, it still doesn't seem to affect > the battery life after it is fully charged again. In that case, my guess is it's probably just coming toward the end of it's natural lifespan, measured in charge/discharge cycles. (My KeyLime iBook battery lasted about that long, as well, and I was always careful to fully charge and fully discharge it.) BRIAN/bpearce at cloud9.net <http://www.redjacketpress.com>