I've been using my new iBook for a month or so, mostly with the ac plug on all the time. I've have the miniBattery widget on, and I have charged the battery to 100 %, but after using it for a while (i'm talkin 30 min - 1 hour or something) and it says 99.7 or 99.6 %. I know it's practically full, but why is it like this, is this normal? I have calbrated the battery. And coconutBattery tells me that my battery capacity is 99% (only 2 mAh's less than maximum capacity). Problem that i should worry about?