phone turning off
I have an iPhone 5C and over the past 3 or 4 weeks, mainly later in the day when the battery level is getting lower (>40), it turns itself off. When trying to turn it on, it indicates that there is no battery. Sometimes after a few minutes, you can try again and it will turn on, indicating that it has a good level of battery (at least 20%). Once these problem occurs, even turning on the device will result in it turning itself off again. It will only rectify itself by charging the battery.
I am currently running IOS 9.1. My total icloud storage is 50GB with 29.1GB available.
iPhone 5c, iOS 9.1