Hello, Just last night I had charged my phone up 98%, unplugged it because I didn't want to go to bed with it plugged in, and went to bed. This morning, I woke up and it was at 3%! I go to grab my charger which is right near my bed and as soon as I plug it in, it dies. Once I turned it back on, I go to Battery part of the settings to find the culprit that is using all my battery. It says Android OS used 89% of my battery along with Android System with 5%, Phone Idle at 2%, and Cell Standby and WiFi both at 1%. All my apps were closed before I locked my screen and went to bed. There is no reason my phone should lose its nearly full charge overnight with no use at all. I've been reading that the S6 is in no comparison to the S5 or S7. I've had this phone for maybe a year now and the battery has never been as great as it was promised. What should I do?