Don't thank me, it's possible that my unit (and yours) is faulty: most people here rave about amazing battery life, while I seldom get 2 hours of use, (I mean normal browsing, emailing, rssing, not playing videos).
Or maybe my original battery was faulty or not very "fresh" (lithium batteries age badly even when not used).
Now I'm using cheap hong-kong batteries and they last more or less the same than the original battery (when it was new, now it's almost useless).