First off sorry for all the threads over the past few days, I have just seemed to have quite a few questions. I've just got a new White Unibody Macbook on Saturday. I done a calibration of the battery yesterday and left it overnight as Apple say. Now this morning after a full charge up it's saying the battery only has 94% health left. Considering Apple say it takes 1000 charges or 5 year to drop to 80% this is concerning me. Can anyone give me some advice?