How To Know If Your Iphone Battery Is Bad. If your iPhone unexpectedly shuts down when the battery still has a good charge it isnt a good sign. As annoying as this is this might be the easiest iPhone battery issue to fix.
Once its fully charged perform a soft reset by holding your sleepwake button and your home button sleepwake and either of the volume buttons on an iPhone X until the Apple logo shows up. If this doesnt work theres a good chance you need a. You will see what the maximum capacity of you battery is - this is a measure of your battery capacity relative to when the battery was new.
To turn off the feature go to Settings Battery Battery Health Optimized Battery Charging.
Cooling down the device will allow you to save money on replacing the entire phone and focus on getting a new battery for your existing iPhone. Reported battery health information is not available. Your iPhone Shuts Down Suddenly. Excessive heat can cause major damage to an iPhone and its battery.
