Why does my iPhone 6 die before it hits at least 20%
Since my iphone 6 is quite an old device released 7 years ago i dont use it much. Since around ios 13/14 it has become slow and died when turned on at 1% after not using it for a few hours. Then it started dying around 15% without 20% warning. Next it starts dying at 20% also no warning, why does this keep happening.
iPhone 6, iOS 12