Today I had 65% left of my battery. I closed my MBP and made dinner, a few hours later I opened it and it was "dead" as in totaly out of battery. I had to plug it in and start it "from scratch". This never happened on my iBook, I could leave it in sleep mode overnight and I had hardly any battery loss at all. If it emptied, it would go into deep sleep or what ever it´s called. Then it was just to re-plug it and wake it up. Is it something wrong with my MBP or is it just different from the iBook?