As I've been playing around with the Nokia, I'm finding all apps to do with the GPS, the camera, surfing the web, downloading apps, and I'm sure there's more, are battery hogs. A soft re-boot after closing any of the mentioned down will stop the heavy discharge. I just took a break, saw and took a picture of a cross on a church I go to on Fridays. I checked my battery in settings. It was 58% with 3 hours remaining. Did a re-boot, and now have 55% with 1 day and 2 hours remaining. The equipment, and apps tend to keep using energy in the background even after being turned off. My BB did the same thing. Ctrl-alt-del did the trick on it. Oh Well, just the nature of the beast.