Charging iphone overnight
I'm currently owning a iphone 3gs 16gb for about over a month. Everytime i charge my phone, i will charge it overnight and it's roughly about 8 hours. Will that sort of exhaust the battery or damage the battery in the long run? Having some problems faced.
First, when i on my phone, the battery was flat even though it was at 70% before i offed it. Got it back running after a charge
Next, when i was making a call, the battery percentage drops from 70 to 28.
What am i to do?
Acer, Windows XP Pro