Can you over charge an I-phone
Can I overcharge my I-phone
iPhone 4S
Can I overcharge my I-phone
iPhone 4S
No.
You can't overcharge, charging automatically stops when your battery is full. Lithium batteries, like in your phone, have no memory effect. This might also be helpful http://support.apple.com/kb/HT1476 and http://www.apple.com/batteries/iphone.html
Can you over charge an I-phone