I took a Grab of my menu bar after I booted up from a correct battery calibration. I was impressed enough with the battery out of the box, but wanted to see if I could get some more time from my cells. I am surprised to see that indeed my battery registers about 45 minutes more life than it did before calibration. If you have an issue with low battery life, try at least one calibration and see if it gives you a correct/better usage time. Also, I have screen brightness at 50%, wifi ON, bt ON and Firefox running. Please post your own results and a Grab so we can get a general idea of what others are experiencing.