Hello, I really need help with my Samsung galaxy s5 battery problem. I've had my phone for about 3 months and only recently I've been having battery problem. The problem is it drains extremely fast, for example: I sat down to watch a TV show for an hour, only using my phone in the ad breaks (which were about every 10 minutes). I started with 100% battery and ended with 76%. I've recalibrated my battery, I've installed the battery doctor app, dimmed my screen, changed my settings my phone doesn't get hot. And I still have this problem. Please help me out here as I am a student and my phone is need throught my day. Thank you.