This strikes me as quite odd: I'll put the iPhone on the charger before I go to bed, where the battery will be at roughly 55%; I'll go to sleep, wake up 5-8 hours later, and the battery is at 91% or something similar. It doesn't happen all the time, but often enough. Why is this not charging all of the way? Furthermore, last night when I was using the phone, I had it charged 100% at 6PM, and by 1AM I was down to about 31% - and this is with some use here and there, not the entire time. Granted, I was listening to music via Bluetooth, but I really don't think this would drain it that fast. Anyone else having symptoms like the former? Should I make an appointment at Apple?