Hi.. When I had got my phone 2 months back, the battery was lasting through the day with moderate to high usage. However, now I am noticing big drains and mediocre battery life even with low usage and have to plug in everyday during office hours. When I am on wifi the drain is very normal, around 1% per hour however on mobile network the drain increases to ~5%/hour with the screen off. I also notice that the + sign beside the H keeps coming up repeatedly. This is in an area with excellent coverage. It also gets a bit warm during this time. The battery graph does not show any wake locks during the time the screen is off. I had done a factory reset as well but its behaving just the same. What is up with my phone?