iPhone 7+ here and I’m having to charge it 2x a day! Prior to iOS 14, I charged it every 36 hours or so. It’s really an issue since it has the program for my continuous glucose monitor. I can’t let my phone die at any point since I depend on it to alert me if my blood sugar is low. of course, I have the same issue with my series 5 watch but at least I have a series 6 on the way.