I'm running a 2008 Unibody MacBook Pro and since I've installed snowleopard, it seems my battery life is much worse. Just browsing the web on wifi using Safari, I'm losing a percentage point in my battery about every minute and a half, maybe two minutes. Seems to be going down a lot faster than normal. According to iStat my battery health is still 100 percent. Claims I've got two hours of battery left at 80 percent charge...maybe I'm just imagining things...?