Are there any apps that are not safe to uninstall or disable? I have something in the Android OS that's eating my battery up, it's consuming more than the screen use. Foxfi is the only app that's been installed in the last couple of months but have unistalled it yesterday with no change. So, I feel I should remove or disable everything possible. I'm only getting about 13 hours of use on a Maxx. Any other ideas?