Hello, I have a Metro PCS Galaxy S4 that I flashed the T-Mobile firmware to, and have been using for the last two weeks with no issue. The firmware is M919UVUFNK2 and I have it rooted with CF Auto Root and the CWM Recovery 6.0.4.7. When I went to sleep last night at about 10:40 my battery was at 93% and I woke up at 6 a.m. to find that the phone had shut off due to the battery being at 4%. I checked to see what was draining the battery and it said that Android OS had used 60%. I have attached a screen shot. Any ideas what could be happening? Also, I have an extra Samsung OEM battery that I swap out here and there, and the battery that was in it over night was the one that came with the device. Thank you for your help!