I have a white 2ghz macbook, bought it early august I guess.. I've been (loosely) tracking my battery life, both hours of usage as well as what coconutbattery reports.. For the first month and a half or so, I would have around 5250mAh to 5300mAh capacity ("original" capacity, 5200mAh) Then, it dropped to about 5200mAh capacity after doing a monthly calibration, though the actual time the computer could operate actually went up, and held there a while. Now, though, in the past 2-3 weeks or so the battery life has dropped significantly, from 5175mAh down to about 4900mAh, along with a marked drop in actual battery life (about 45 minutes to an hour less) In recent days I have been busy at school draining it all the way until the battery indicator is red, then closing it up and recharging at home...this seems to contribute to the drop. I would recalibrate, except the deep draining process seems to be the problem. Any ideas? Is a drop of 275mAh in a span of 2 weeks normal?