Galaxy S4 Battery Drain
I love my Galaxy S4, except for a battery drain issue. Last night, I went to bed with about 80% battery remaining. 6 hours later, it was down to 32%. That's unacceptable, as the phone wasn't really doing anything while I was asleep.
I have all of the "cool" features - GPS, Bluetooth, multi-window, NFC, Air View, etc. - turned off. The only things on were WiFi, Mobile Data, Blocking Mode, Sync (Google account only) and Power Saving.
What in the world is causing my phone to lose 50% of the battery life overnight, with the screen off?