I can't believe I'm going to say this, but have you tried Juice Defender? It's a similar type app, that monitors and manages processes that use your battery. I know a few people with the Charge and it helped quite a bit. In all honesty, if you know what you're doing you should be able to do what these apps do for you, manually, and with a bit more control.
+1 for juice defender ....way better app than a taskiller I did not know any still used. Those except for dumb vzw people lol
ThIs ThReAd HaS BeEn ThUnDeRsTrUcK By WoZzYs T-BoLt