Hello. I've just recently purchased a MacBook Pro (2.33GHz C2D), and I'm just a little concerned about the battery health. I've looked around for any information about this kind of thing, and I've found some, but I just need to make sure. Coconut Battery says my MacBook Pro is 8 weeks old, though I got it about 3 weeks ago. I'm guessing that just means it was actually built 8 weeks ago. I did the battery calibration cycle (twice, but not in the past week), but I haven't seen much change in battery health. The first time I did the battery calibration was when I first took it out of the box, but when I got to the draining-the-battery part, I put it to sleep a couple times. So I'm guessing that negates the whole calibration cycle. I did a complete "real" cycle a few days later. Anyway, Coconut Battery says my battery health is down to 94%. I used iStat Pro too, and at first it was at 99%. Then as the days went on, it gradually went down to 94. Actually, it seemed to fluctuate a bit between 95 and 97. But now it's at 94. The number of load cycles is 36. Although I don't remember plugging it in 36 times... but if each drain and charge counts as 2 separate cycles, then I suppose I may have plugged it in 18 times already. I wonder if sleep somehow counts as a cycle... but why would it... I use battery power every day. Is it just because of that? I don't let it drain all the way though. I usually plug it back in when it's down to around 20% (that's an average, sometimes it's more, sometimes less). I don't do too many CPU-intensive things. When I do, I usually plug it in. And sometimes I just plug it in anyway, just so as not to use the battery. However, I remember reading a post in this forum that the person's battery life went down below 90, but then some time later it went back up to 98. I don't remember the exact numbers, but it was something like that. Any ideas anyone? Am I using the battery too much? Maybe it'll go back up, but I have no way of knowing. Perhaps I should do another calibration cycle to see if it helps.