I clicked the battery icon at the top of the screen and what I seen is below. I'm extremely impressed with this new machine. Sold my old 15" Late 2008 Unibody few weeks ago on eBay as I wanted to downsize for portability. Update: Obviously this was an estimated time and it was given when I used the computer on the battery for the first time upon receiving it. I assumed people wouldn't actually think I was getting 10 hours whilst using applications on it. You would probably get that amount of time by doing nothing on it. I just thought I would share it as it's the first time I've had it on any MacBook Pro and I've owned every generation of them.