Sorry to bring up old ground again, but this is so frustrating. If I'm doing very little and 20% of battery goes in less than an hour, wouldn't you say there is something very wrong with the battery? and now 30% in just an hour, Email programme open, and Safari to write this... but very little else. I've read all there is about the battery do's and dont's from the links you guys have given me but nothing has helped. It's now a 3 month old MPB i5. Why so lousy on battery? You guys that get 7 odd hours, what do you do on it? Is there a way I can check things to see if it's functioning OK?