iPhone 13 Pro Max to 15 Pro - I just transferred all my data yesterday at 6PM and then must have missed the charger when I set it down to go to sleep around 11pm. I've done this before on my Pro max and it might drain 5% overnight. This new 15 Pro looks like I never set it down all night long - that drain curve is linear from my surfing on Chrome from 10-11p straight on till morning. It drained 32% in 8 hours with nothing but a (mostly black) dimmed AOD lockscreen.
I'm told that Apple now does the same thing Windows does and re-indexes your phone when it's new so maybe (hopefully) that's it. My battery page shows Chrome, Gmail, FB, and Memmy in the top 4 spots (70% of all usage) over the last 24 hours so I'm guessing that Apple's own internal iOS usage doesn't show up (how convenient for them).
Does this seem...normal?
The first couple days after you set up a new phone it’s always working really hard. Every app is running a re-sync and there’s a bunch of processing to create Siri indexes and stuff like that.