On Feb 12, 2005, at 07:30, Paul Moortgat wrote: > I find it more than strange that the indication went from 50% to 0% in > one second. It's just very badly calibrated. Old 'Book batteries tend to do that... and lithium-ion batteries die away after a couple of years, no matter what you do to them... Try recalibrating it using the instructions *somewhere* on the Apple web site... (basically, fully charge battery, then run continuously (ie. no sleeping!) until the machine goes to sleep itself. The power manager might need resetting too... 'Book batteries cost about 100UKP; not sure about Euro prices. Slightly cheaper? SM. (who will need a new ibook battery soon)