[RAH]

I think you would not have to run it every time. I think it would depend on what apps you ran while you were using the Nook. I mean, for example, say you have some calendar app that always runs in the background. If you kill it, depending on its settings, it might not start automatically when you wake the Nook up again - you might have to start it manually after killing it. So if you don't start it, you won't have to kill it again.

It obviously depends on which apps we are talking about. One nice thing about App Killer is that you can examine which apps are restarted when you wake the Nook up again by looking at the App Killer list and seeing what is running each time.

The trouble is, it is very difficult to find out which, if any, apps are hurting your battery life.

I have a pretty old Color Nook (at least 2 years old) and its battery behavior mystifies me. Sometimes it will drain in say 3 or 4 days (but never in 24 hours, as you reported), even if I am careful to turn wifi off and just let it sit on a shelf. But other times it will only get down to about 70% after 4 days of non-use. Very strange.

I kind of wonder if it has to do with which screen you leave it on when it goes to sleep. I have had good luck leaving it on the Apps screen (the one that shows all your installed apps), as opposed to say leaving it on the browser screen. In other words, the last thing I do is press the N button at the bottom and select the Apps entry. Then I put it to sleep by pressing the left-side button briefly.

But, as I say, it is mysterious and hard to figure out. But you should definitely get at least 3 or 4 days out of a charge, I think.