I like my air but the battery may cause me to return it and keep my trusty MB. The first night i got it i let it charge for 12 hours and it only got to 98%. Last night i let it run down to 0 and it shut down and i let it charge all night. 8 hours later I turned it on and it was at 90%. I think i may return this thing. I know some people are not having batt probs but because some are and the battery cannot be removed wo surgery makes me nervous.