So I a 100% charged battery in my phone and turned my phone off overnight since I didn't need to charge it. I turned it on at 7:45am this morning at 98%, checked Crime City real quick, and then jumped in the shower. 30 minutes later (8:15am) after sitting idle the whole time, I discover my phone is warm and was at 85%. In 30 minutes sitting idle. That's the equivalent drainage of having my mobile hotspot feature on for 30 minutes. I checked Gsam and it said "Media" was running the whole time and took 45% of that battery drain. When I click on Manage, it takes me to the "Downloads" app. I barely noticed the same thing last night when I swapped batteries and then my new battery was draining AWFULLY fast with no usage. But it only just started yesterday. And I haven't downloaded any apps in several weeks. Somehow I suspect this has something to do with the Jelly Bean update. My phone has noticeably been draining faster since I updated about a month ago. Its like I have to do NOTHING with my phone to get any decent battery life out of it, which defeats its own purpose. But now it seems I can't even NOT use it either without it draining anyway.