How Long Does 40 Battery Last On Iphone. Depending upon the length of time between when the iPhone was made and when it is activated your battery capacity may show as slightly less than 100. Thanks for the A2A.
The new device will have the A8 processor which is more energy efficient than the A7 processor installed on in it predecessor. A comfortable room temperature is the best environment in which to charge your iPhone. If you dont use it a lot about 2-3 months actually.
The iOS 113 update confirmed my suspicions.
If youve recently updated to iOS 11 this is a known bug and is either fixed with iOS 1101 released today or will be fixed relatively soon in an update. Up to 40 hours. A normal battery is designed to retain up to 80 of its original capacity at 500 complete. The problem worsens with time.
