I have had a consistent issue with battery life since iOS7. It usually happens like this:
At about 30% on the battery indicator, I could be doing something like sending a text or in the middle of a phone call, I may look down and see that the device has suddenly gone into the red (indicating 20% power left) or the phone will just shut down. It behaves fine until I get down toward the 30% mark. Last night it was at 27% (noted on the battery indicator and on an independent battery measuring app that I purchased to monitor this issue), and while dialing a phone number it just shut down. I immediately plugged it into a power source and left it for about 2 minutes. I unplugged it and it was at about 29% and behaved normally. I glanced at it periodically over the next hour and it seemed fine. When it was down to about 25% I was trying to text someone and it shut down again. I plugged it in for about a minute and unplugged it (power was registering about 26%). I then performed the text actions. It did not shut down again through the rest of the night but I did not text or make anymore calls. At about 17% I plugged it in and left it for the night.
This is a company phone so I have not done a full OS restore yet...
Any ideas?
At about 30% on the battery indicator, I could be doing something like sending a text or in the middle of a phone call, I may look down and see that the device has suddenly gone into the red (indicating 20% power left) or the phone will just shut down. It behaves fine until I get down toward the 30% mark. Last night it was at 27% (noted on the battery indicator and on an independent battery measuring app that I purchased to monitor this issue), and while dialing a phone number it just shut down. I immediately plugged it into a power source and left it for about 2 minutes. I unplugged it and it was at about 29% and behaved normally. I glanced at it periodically over the next hour and it seemed fine. When it was down to about 25% I was trying to text someone and it shut down again. I plugged it in for about a minute and unplugged it (power was registering about 26%). I then performed the text actions. It did not shut down again through the rest of the night but I did not text or make anymore calls. At about 17% I plugged it in and left it for the night.
This is a company phone so I have not done a full OS restore yet...
Any ideas?