I just bought a 11" i7 quad with the 256 SSD, the highest end 11". I can get maybe 3 hours of battery out of this, just doing nothing but browsing the web. I do have the screen on two levels down from full brightness, and do have the keyboard lit. But I can't believe that 3-3.5 hours is even acceptable. I got on the computer at maybe 10am with a full charge from then night before. It's now 12:15 and I am at 22% battery. And that's not even with constant use, I've put it down for maybe 15-20 minutes. Maybe I should open it up and time it from 100% to 0% with no usage at all, just sitting there open. At what point to I take it in to the Apple store and explain it? How many hours of battery is just unacceptable.