I had same issues with my ip5 from last year. Battery life shut downs, bad battery life at 3-4 hrs most. I took it into genius bar and they checked the phone and showed the battery has failed (in the red) using their testing method. They put a new battery in for me. I am using the latest ios7 btw. I get around 8-9 hrs of battery and no shut downs at 10-20% anymore.
My ip5 was one of the first week 41 phones when it was released so the battery in those might not last long or have issues. I would check with ur genius guys at apple first.
My ip5 was one of the first week 41 phones when it was released so the battery in those might not last long or have issues. I would check with ur genius guys at apple first.