I've seen references to batteries in approximately mid-2002 iBooks going bad, & I just had mine replaced at the local Apple Store. They sounded lke they were replacing a fair number of them. 1st try resetting Power Manager and PRAM and see if problem remains. On Mon, 20 Jan 2003 pauljosephmiller at attbi.com wrote: . . . > 2. I noted that when waking from sleep the computer misreads the > battery time. For instance, say I know that I have over an hour of > battery life left. I put the computer to sleep for moments. When I wake > the computer (lifting the lid) The computer opens a window that says > "reserve battery..plug in now...yada, yada". The remaining battery > time in the toolbar reads 3 minutes, than slowly increases to, say, 20 > minutes, then the computer goes to sleep mode (looks like a total > battery drain). Either way, dead battery or not, why is it a misread > problem since I installed 10.2.3? (Previous version worked flawlessly). . . .