Some iPhone users who recently installed the iOS 16 update may feel that their battery life is draining much faster than before. And to be honest, it can very well be!
If you’re experiencing rapid battery drain on an iPhone after installing iOS 16, there’s probably a reason for it, and luckily it’s usually one of the easiest problems to fix.
1: Spotlight & Photos indexing drains battery life
If you have recently updated to iOS 16 and are noticing that the battery life is much worse than normal, this is actually normal and expected behavior as the indexing activity is going on in the background.
Every time you update the iOS system software, it will trigger background tasks to run until completion. This includes everything from Spotlight, which re-indexes the content on your phone, including notes, photos, and app data, to the Photos app, which re-indexes photos and searches for objects, faces, locations, and metadata.
These background tasks and indexing behaviors consume power, temporarily draining your battery while they complete.
The more stuff you have on your iPhone, the longer the indexing processes take. So if you’ve just updated iOS to 16 and the battery is dead, your best bet is to just wait and see. It might take an hour or even a couple of days depending on what’s on your iPhone, but it will sort itself out and you’ll be back to normal battery in no time.
Often just plugging in an iPhone and letting it charge overnight while connected to Wi-Fi is enough to complete this and take care of yourself.
2: Install app updates
It’s always possible for third-party apps to cause increased battery usage, and keeping them up to date is an easy way to ensure such problems are fixed.
Open the App Store, then tap your Apple ID profile in the top right. Then scroll down to find the Updates section and install updates for any apps or apps you use frequently.
3: Find out exactly which apps are using battery life
The Settings app on iPhone shows you exactly which apps are using your iPhone’s battery life.
Go to Settings -> Battery and you will see a list of apps that are using your battery. This can provide insight into app behavior, which apps may need an update, and what needs to be done.
4: Disable background app refresh
Background App Refresh allows apps to refresh in the background when not in use. This is a feature that basically allows apps to use the battery even in the background. Therefore, disabling background app refresh feature on iPhone works to stop this behavior.
Go to the Settings app > General > Background app refresh and toggle it to the OFF position.
Most users won’t notice that apps take an extra second or so to update when this feature is disabled, but you may notice the improvement in battery life.
5: Use power saving mode to extend battery life
Low Power Mode is a useful feature that suspends background activity and other processes on iPhone to conserve battery life. While this can help extend battery life, you’ll find that it also pauses some tasks that can eventually cause your battery life to return to normal (like the indexing tasks above), so consider using this if you’re using it are on the go and looking for longer iPhone battery life.
Enabling Low Power Mode is easy via Settings > Battery > Low Power Mode.
6: Force restart iPhone
Sometimes simply restarting an iPhone can fix battery issues, and it’s a simple procedure so there’s little reason not to try it.
You can force restart any modern iPhone with Face ID by volume up and then volume down and then holding down the side/power button until you see the Apple logo on the screen.
Has installing iOS 16 affected your battery life? Have you noticed your iPhone battery draining faster after iOS 16 update? Has it improved? Did the tricks mentioned here help? Tell us about your experiences in the comments!