I've been an iPhone user since I bought an iPhone 4 on launch day and have upgraded most years since. I think I've owned 10 different iPhones now. Every major iOS update I see people complaining about unexpected battery drain after upgrading and I have always dodged those bullets and had no problems - until now. The battery life on my brand-new iPhone 14 Pro Max is noticeable worse than it was on my iPhone 13 Pro Max. My iPhone 14 PM battery is draining about 30% faster than I saw on my 13 PM, maybe even a bit more than that.
I assume this is a software issue. I really hope so. I might have missed something but in all my time as an iPhone owner, and a follower of this web site, I can only remember Apple acknowledging a battery drain issue once and subsequently explicitly listing changes to improve battery life in an iOS update's release notes (I really can't remember what iOS release that was; it was certainly many, many years ago).
Has Apple even acknowledged an issue with increased battery drain on iOS16? I would feel a bit happier if I knew that Apple had acknowledged the problem which I would take as a strong indication that it was investigating fixes. Right now all of these reports, coupled with my personal experience making me feel how real the issue is, plus Apple's failure to acknowledge the issue yet, is extremely disappointing. This is the first time in my history of iPhone ownership when I have felt unhappy with an upgrade and I really don't want to have to wait until the iPhone 15 is released next year to roll the dice again and hope to get back to even just the battery life I had with my 13 PM.