Okay, so I decided to see how well my iBook battery runs when I drain it all the way. I think it ran for about an hour and a half, and then it was at 35% or so. Then I put in Knights of the Old Republic, and it went to sleep, and didn't wake up. I plugged in the Power Adapter to see it say "0%". So, my battery was dead. I took out Knights of the Old Republic, and unplugged the power. The comptuer went to sleep. The battery really was spent. I plugged the power back in, and let it start charging. When it got to 3% I unplugged it. The computer stayed out of sleep. And I could use stuff. THEN... I plugged the power back in, and it says "99%. Battery Charged". It wouldn't charge it anymore. It said it was full. As I'm sitting here typing this, I am watching my iBook sitting there, running on battery, with the screen brightness to the max, saying 97% battery left. It says 2 hours 30 minutes left. How can that be? It was at 3%!!!!!!!!