Got a bit of a strange thing happening with the battery on my iBook G4. For ages I've only got 20 minutes or so out of it, but now for some reason I'm able to get just over an hour from it. It would read the percentages fairly accurately, but always said "Calculating..." for time left. I just reset the NVRAM and now it reports a fairly accurate 55 minutes battery time, but only shows 1%, even after sitting on the charger all night.
What else can I do to get a remotely accurate battery meter?