Since I have updated to iOS 11, I’ve found that the battery on my iPhone 6 drains much quicker than it used to. I didn’t change any settings other than installing the new operating system, yet, I can’t get through a day without needing to recharge my phone. This is unacceptable! What can I do to fix the problem?
Apple works to ensure that each update to iOS sucks down the juice no faster than previous versions, but sometimes (as in this case), the company fails. It’s clear that iOS 11 eats more power than iOS 10, given the same device, but at least the answer is simple!
In iOS, applications have the option to receive background updates, even while you’re not using the application or the phone/tablet. For example, an email application can receive email while you’re not using the phone, so when you look at it next, you’ll see the most current email. The same feature is useful for a weather or news application. Using background updates, you don’t have to wait for data refresh when you look at the phone—the data has already been refreshed and it’s ready for you.
The problem is that that these background updates consume battery power. Prior to iOS 11, this feature wasn’t enabled for all apps. Starting with iOS 11, however, Apple decided that you should have background updates enabled for all apps by default, whether or not they’re necessary. It’s up to you to turn off the updates for apps that really don’t require them. From our perspective, only email, news, and weather apps really need background updates—for anything else, you can manually update the content when you need it.
To fix the problem, open the Settings app. Select General, and then Background App Refresh. This page displays a list of all your installed apps. For all but the mail, news, and weather apps, turn off background refresh. That’s it!
It may take a few days before you notice a difference in battery usage, but not refreshing data in all your apps should make a difference in the battery life of your device.