What Lowers Battery Health On Iphone. Unfortunately there is no way to check the battery health of your iPhone 5S or lower model. To start the calibration process completely drain your iPhone battery to 0.
Unfortunately there is no way to check the battery health of your iPhone 5S or lower model. Apple iPhones from the iPhone 6 and later also have a Battery Health tool that was introduced with iOS 113 back in March 2018 along with the ability to turn off the iPhones battery. The iOS version for iPhone 5S or lower doesnt support this option.
My iPhone 8 which I bought new in.
Battery health is of course important for the longevity of your iPhone. 77 is actually very low it means your iPhone battery is operating at 77 efficiency you probably need to change the battery. Calibrating your iPhone battery gives it the right push for better battery indicator accuracy. Check your iPhones Maximum Capacity percentage.
