I've had iOS 26.1 installed on my iPhone 15 for about 3 weeks now, and my battery power has been draining like nobody's business ever since. I'll go from a full charge to 20% in less than 4 hours doing regular tasks like making phone calls, checking emails, browsing the web, ETC, and carrying a portable charger while I'm out and about is now mandatory. Someone mentioned in passing to me that iOS 26 is a lot harder on devices than 18 was, so I'm curious whether anyone else is struggling to get through the day on a single charge after updating.