Hey All. I'm not entirely sure what the charge capacity of my battery was out of the factory, however after a few charges it went up to around 4300 mAh. Over the last 10 cycles I guess (battery has 12 cycles on it in total) this has decreased to about 4250 mAh. This I would take as normal. However last night, around 10:30pm, I put my MacBook to sleep, and woke it up today at 5pm. In the 18.5 hrs it's been asleep, the rated output has decreased to 3808 mAh, that's down to 93% health! Is there anything I can do to fix this? Or is my battery damned? I've taken the health reading from iStat and the charge capacity from. Cheers all for any help you can supply! Aidan.