I just got a 1GHz Powerbook (and airport) a couple of weeks ago. According to the manual you are supposed to use the PB until the battery runs out then plug it in and charge it all the way in order to optimize the battery. When I got it I got carried away and plugged it in right away, which according to the manual you shouldn't do the first time you use it. Did I mess up the battery life? I have the energy saver settings set to prolong the battery life but I still only get about 2.5 hours! I am using the airport alot. Does that take alot of extra battery life? 2.5 hours battery life seems a little short compared to the advertised 5 hours!