Hello, I am new here having just bought my first Mac ever a week ago (mid-2009 15" Unibody, 2.66GHz). So far, I have been very pleased with it, especially with the battery life...at least at first. The day I got it, I plugged it in and began playing around with it. When I left work for the day, it was fully charged, and over the next day and a half, I used it without having it plugged in (as I read at Apple's site how you're supposed to condition the battery). I got a ton of run time out of it, and was very pleased. I let it run down, left it off, charged fully, etc. Since then, I've used it quite extensively, both on and off the charger. I did notice that since the first day, my run time on the battery does not "feel" as long (granted, I have probably been using it more, Wi-Fi, etc., but that doesn't stop the intangible feeling that it's just not running as long). I found this place and discovered the coconutBattery application, so I downloaded and ran it. Over the weekend (showing 4 battery cycles) it was reading at 6350 mAh/6500. I thought that was quite a hit for only 4 cycles, so I decided to fully drain and recondition just to get it back to 100%. I did that today, and just ran coconutBattery again...now, it's showing 5 cycles and 5939 mAh/6500 (91%). If this is accurate, after about 55 cycles, the battery will be completely dead. Is this right? Am I doing something wrong? Sorry if I'm being daft, but I just don't see how 5 cycles could kill 10% of its life already.