When I go to my battery usage android system is usually over 50% and I have most everything I know of that drains your battery turned off such as GPS, auto sync, bluetooth, I turn my brightness down, and I turn WiFi off when I'm not using it but android system is still draining my battery. My battery is at 62% right now and it's not even 10 am. Here is a screenshot if I can get it posted. Any help is appreciated.