I have an iPhone 11 Pro and just upgraded to iOS15 and am experiencing significant battery drain. I went from 100% to 20% in 3-4 hours. I have an apple extended battery too which was charged about 70 percent and if I include that as well I went through that and 80% of the phone battery in 5-6 hours. The only thing I can see using a significant amount of battery is Spotify where I was streaming music to Sonos. But that has never caused an issue like this. I have never had a battery issue like this before upgrading.
Can someone please help!!
Can someone please help!!