Indeed, not only the Background App Refresh affects your battery life, but it also drains your cellular plan. What for? Well, the name speaks for itself—the feature allows the apps to search for content updates. Even if those apps are not actively running on the screen.
If it becomes clear to you that some apps are running too often in the background, you’re definitely going to want to turn off Background App Refresh. To do this:
1) Open the Settings app -> General.
2) Tap Background App Refresh,
3) Toggle it off.
We hope this instruction helps you save significant amounts of battery life, so you will be able to extend the time for your additional iPhone needs :)