Battery Drain
I'm facing lot of battery issue in iphone 7 plus. I have purchased this phone in 2019. I'm the first owner of the phone, my phone battery health is 90%. After updating on ios 15.2 to till 15.4 i'm facing a lot of battery drain issue. How to fix this issue? Can we get a battery drainage solution in ios 15.5 or not?
iPhone 7 Plus, iOS 15