> I have one of the original TiPB when they first came out, and, as I > recall, they were supposed to last about 4 hours on the battery. I > have been doing OK for a long time, but most recently I noticed that > after about 1.5 hours, the battery gives out. In fact it happens so > fast, I do not even have enough time to shut it down before it goes > into the coma state. > Is this what should be expected or is this battery dying? BATERIES have a finite number of charge-discharge... I understand that 500 is the absolute limit and that most do not live thru that many. I always worked plugged in when possible. So my 2 TiBook batteries are both very long lived when I have to use them as they are infrequently discharged. Time to buy yourself a new battery. -Joel