As expected, phone dies faster after IOS 13 update
I have noticed that the software, to me at least, seems to reduce battery life every time there is an update accompanied by new iPhones. The update, meant for the new phones with more efficient processors, always makes my older phone die faster. I usually am weary about this since it seems to happen every time. I usually hold off but I wanted to test the new “dark mode” that was supposed to increase the battery life. It does make sense to me that dark mode would increase battery life but with all the other new features and processes added to the new iOS, it seems as if my battery dies faster than before.
Edit: just checked my battery health it is at 91%. This could also be part of it