I'm starting to worry about my iPhone's battery. Lately it has been draining itself REALLY fast. Yesterday I noticed that by the time I turned it off, the battery was at 90%, the last time I looked at it, it was at around 97%. (I hadn't used it the rest of the day). Also, in the mornings after charging over night, I unplug it around 6:40 AM (forget to turn it off) and by 3 PM, the battery level is at 93%, and it was in stand-by the entire day (and on a desk). I have Push turned off and brightness set to auto. I also make sure to take all the apps running in the background off too. Do I need to go see and Apple Genius, or is this normal?