I was wondering if anyone else was experiencing this issue. So the past 2 nights I've been plugging my new 4s into the charger before I go to sleep (around midnight) and wake up (around 9am) to find my charge only at about 93%. And that's not the best part. After waking up and checking a few emails or texts and setting the phone down, a few minutes later and the charge is at 91% WHILE STILL ON THE CHARGER. Is this an issue because the phone is new and the battery isnt "calibrated" like I've heard some people talk about on here or is the phone just screwed?