Now that I think about it...when I first got my phone I got about a day and a half with it, just a few calls and texts, but a lot of playing around with it. Then this morning I had it fully charged, loaded Advanced Task Manager and it was DEAD at 9PM. I only made two calls and three text messages. I think LTZGuy is onto something here about not using as Task Killer. Mine has just been deleted. I'm going back to a scheme I used with my BlackBerries...uninstall the stuff I don't use and if I can't uninstall it (Android apps) there has to be a way to shut them down.