I bought a MacBook yesterday, the 2Ghz white one, and got up early today to calibrate the battery (because I'm paranoid about getting everything absolutely perfect and working as good as possible... If I should have waited a month, please say ) So, my Mac has been telling me that my battery is 99% full, and has done so for the past hour almost. Thought I'd Google it and eventually downloaded CoconutBattery to have a look. It's telling me that from 5200 mAh, I've got 5066 left, 97% capacity. It's also telling me that at present that 5066 mAh is full. It reads 100% charge, but the light amber light on the power lead isn't turning green, and the menu bar icon still shows 99%. Anything to worry about? CoconutBattery says my Mac is 2 months old, and has gone through 2 battery-loadcycles (whatever they are). Of course, yesterday while setting up the Mac, the power lead light did go green, so at least I know the light works... Thanks in advance for any help, and props on being a good site for beginners. Edit: Having since typed that, I turn the power off at the plug, pulled the lead out and low and behold, the battery now reads 100% on the menu bar. Does it ever get to 100% with the power lead in?