I got my wife a brand new MacBook for her birthday a week ago. The first couple of days, when fully charged it showed 100% on the battery charge indicator (upper right of screen). Then over a week's time it dropped gradually to where now it only shows 97% when the thing is fully charged (overnight). We went to 2 Apple Stores and in both places their 'MacGenius' people gave what I felt were bullsh*t answers about what was going on. I feel that they are covering up an issue they know about. I feel it is either bad design, or bad implementation, for a week old laptop to not be able to achieve 100% charge after an all night charge. Am I missing something? Has anyone else experienced a similar problem? I myself have a 1 year old MacBook that gets to 100% every time I charge it. Sure the battery doesn't last as long as when it was new, but at least I know it's getting to 100% of the charge that it is still capable of.