Report 3 different battery wear readings? in iOS Forum Posted January 12, 2018 4 hours ago, Mice007 said: It is tricky as we get these values from iOS and it is rounding the capacity to the nearest hundred which results in some fluctuations. Also since iOS 11 this value seems a bit off sometimes. I'm recommending you to check the value in the next few days at different charge levels and calculate an average. According to the issue I think around 15% wear level seems real though. Usage time still good but with a lower charge level the device can shut down during a heavy power draw. Hmm thank you... The latest wear level is 8.27 percent. But most of the time 10.xx or 12.xx is shown.