Hello macrumors I'm planning of purchasing a Macbook Air for school, and the 11 inch model would be perfect because of it's portability. My only concern is the battery life - 5 hrs. An upgrade to the 13 inch model would give me 2 hrs extra battery, but I really don't need the screen size as I have a stationary PC at home and a big monitor. Is it enough to last a whole school-day? (I'm in high school.) I don't want to charge it during classes. So students or employees- will the battery take you through the whole day?