Has anyone charged ther iPhone over night for more then 7 hours and woke up, looked at you're charge percentage and it was at 97%? I have left it on the charger. I've been surfing safari for the past 30+ minutes and I just realized that my percentage is at 97% and has the plug in sign not the charge bolt. I've woken up and it's been at 98% and 99% before but never 97. I just re calibrated it the other day also. Anyone?