What version OS are you using? I had a similar problem (battery didn't even last a day with light use), but I just updated to the latest version (
http://www.blackberryforums.com/gene...0-0-337-a.html) yesterday and the battery life is markedly improved - in fact I haven't charged my Torch for more than 24 hours now and there's still over 50% battery left with moderate use...=)