[noiroi]

i have a 500mhz dual usb ibook for almost 2 years now, great machine , never had any problems with it.

however, at some point, i've noticed that the battery lasts for a significantly shorter time then before.
when i've just bought the ibook i was using mainly OS 9.2. then, after several months i switched (almost completely) to OS X. i think that was around the time the battery life became shorter, but i can't be certain. (i usually use the power adapter).
could it be that OS X requires more battery power then OS 9, or does battery life just bound to get shorter over time ?

[rjenkinson]

battery life does naturally become shorter over time. however, it can also be shortened prematurely, as was (probably) the case with an OS X update a while ago. chances are though, with your 500 mHz ibook, that it's just normal lessening.

-r.

[engaged]

This is a recurring topic in this forum, there's several very recent ones on this page - and a search will show far more.

It isn't OSX requiring more power - I've got the same problem, and I am now unable to use my ibook as a laptop (running from the battery). And I don't have AppleCare to cover a replacement.