when i usually use my mac without the power cable i dim the screen a couple of notches, when im on facebook doing some facebook games, Farmville, Bricks breaking etc etc i usually get about 6 and a half hours batter! mine curently says 7 hours remaining and i have been using it 50 minutes without the power cable!
I don't game.
My normal use is wifi on, BT off, brightness at 50%, I have open Mail, Sugarsync, skype. And working with either Pages, Illustrator, or Excel or maybe surfing with Safari. In such conditions I normally reach 4 hours. MBP 13", factory conditions, 2 weeks old, battery calibrated a week ago.
Um, it can last anywhere from 0 minutes if your battery is defective all the way up to 9 hours or so. The most I've ever gotten is 9, but I wasn't doing anything outside of using a text editor.
when i usually use my mac without the power cable i dim the screen a couple of notches, when im on facebook doing some facebook games, Farmville, Bricks breaking etc etc i usually get about 6 and a half hours batter! mine curently says 7 hours remaining and i have been using it 50 minutes without the power cable!