I was sitting here on my 2009 macbook pro and wanted to check the percentage of battery life until it was charged up completely.... Yeah, big deal, right? This is the cool part, you know how it measures "battery capacity"? I saw it with my own eyes that it jumped from 91% to 92%. It's three months short of being two years old, BTW. AWESOME! (I thought, the last time I checked the capicity it was down to 90% and this was a week or two ago.) No complaints here, its just interesting. Have any of you expirienced this? PS. It's still my orginal battery.