I updated to iOS 15 in my iPhone 6s Plus I experience serious battery drain even when I’m not using my phone I charge it to 100 next 1hr I see it 78 what the problem
I updated my iPhone 6s Plus to iOS 15 my battery drain when not in use I charge my phone to 100 percent then keep it before I back from work in the evening it already 53 percent battery drain quickly what the problem
iPhone 6s Plus