Following the battery calibration procedure exactly...what is everyone's experience with usage after doing this? Are you all finding the battery life is as good as could be expected? When I did my battery calibration, it took FOREVER for the battery to go from 99% to 100% the first time charging up, and then after waiting the additional 2 hours, I turned the brightness all the way up and ran Youtube to run the battery down....and it only lasted about 5 hours, which is worrisome to me. Anyone else experience this?