How did you get a yellow baddery icon?
You should give it a day or two to settle.
Apps will run in the background, regardless of whether Background App Refresh is on or not. Background App Refresh helps apps run in the background more efficiently, using less resources. Apps need to run in the background so they work as you need them to. You probably have a few apps trying to adjust to iOS 11. Try swiping any suspects out of multitasking, then do a hard reset (reboot).//uploads.tapatalk-cdn.com/20170920/1db679da2f49c5cb127fbb018ce31010.png
There is a glitch that is known, keeping background activity on even when Background App Refresh is all off. It’s not registering correctly.
Settle? You mean an update to fix the glitch?
I understand usage is increased with a new system giving the false sense that battery life is worse. But today I have hardly used my phone at all. Plus it’s registering background activity with that setting off. It’s a known glitch (hopefully by Apple as well) and needs fixed