The first and most pertinent thing to do is to remove any rogue applications that might be wolfing down your iPhone’s battery. Head over to Settings > Battery and you will see a neat list of apps that have used the most power in the last 24 hours and the last 2 days. See if there are any warning signs – if any app has been using way too much power than required. You can either simply uninstall them or limit the use of those power-hungry applications and get rid of those pesky fellas.
2. Background App Refresh
Another extremely important thing to do which has a profound impact on an iPhone’s battery life is preventing the number of apps running in the background. Background App Refresh is a feature found in iOS that automatically updates apps that you use most often in the background. While this sounds just marvellous and wonderful, it’s actually an incredible drain on your battery. Head on over to Settings then go to General then go to Background App Refresh and either disable the feature entirely or disable it for the apps you use less frequently.
3. Reduce Motion
iOS has many animations all over the place that looks very cool but are quite a drain on the battery. It also has a parallax effect which causes the wallpaper to move as you tilt the iPhone (again – a battery hog). Do your battery and the overall speed of the UI a favour by heading over to Settings > General > Accessibility > Reduce Motion and turning on the feature.
4. Turn Off Networks When Not Needed
This may sound simple but do not forget to turn Wi-Fi, Cellular, Bluetooth and Location off after you are done using them – especially Location as GPS can be a huge drain on the iPhone’s battery. Also while you are at it, head over to Settings > Privacy > Location Services > System Services and turn off Location for services such as Diagnostics and Usage. Settings Time Zone, Location-Based iAds and Popular Near Me which are not often required by most iPhone users. Do not worry, Location for these services can be safely turned off. Also, ensure Personal Hotspot is off when you do not need it – that is a big battery killer.
5. Customize Fetch New Data
By default, your iPhone is configured to fetch mail via Push – which means you will receive a new mail as soon as it comes in. If you want to save battery life, you can configure your secondary or even your main e-mail account to fetch mail every hour or so. You can even change the mail fetch settings to manual If you really want to go crazy in terms of battery conservation. Head on over to Settings > Mail > Accounts > Fetch New Data and then select your preference.
6. Auto Brightness
The display sucks a lot of battery. Here are a few battery saving tips related to the same. Firstly, reduce the screen brightness – the brighter the screen, the more energy it consumes. Dim the screen by heading over to Display & Brightness and moving the brightness slider as needed. It is good to turn on Auto-Brightness because your iPhone will automatically tune the brightness according to the surroundings.
7. Turn Off Wi-Fi Assist
Head on over to Mobile Data, scroll down to the bottom of the settings page and turn off a feature called Wi-Fi Assist. Wi-Fi Assist switches over to Mobile Data whenever Wi-Fi connectivity is poor automatically. This hampers battery life and also sometimes becomes very inconvenient as there are places in your home where Wi-Fi signal is poor but you want to remain connected to Wi-Fi.
8. Turn Off Fitness/Motion Tracking
If you already have an Apple Watch or a fitness tracker from the likes of Fitbit or Garmin or you do not really care about fitness tracking in the first place.Turning off your iPhone’s fitness/motion tracking feature and save yourself some battery life. For that, Go to Settings > Privacy > Motion & Fitness and turn the feature off.
9. Low power Mode Setting
Clubbing a bunch of tips at one point. Firstly, use your iPhone’s Low Power mode when your battery starts to run low or go crazy and keep it enabled all the time. For that, Go to Settings > Battery and then move the Low Power Mode slider to the on position. Secondly, do not automatically upload photos to iCloud – only upload those photos to the cloud which you actually want to. To turn off auto upload, tap Settings > Photos & Camera > My Photo Stream and move the slider to the off position. Lastly, turn off auto app updates. Head over to Settings > iTunes & App Store and turn off automatic downloads for updates.
10. Don’t Upgrade iOS 11 on iPhone 5s
If you have an iPhone 6, iPhone 6 Plus or an iPhone 5s – basically older generation iPhones running on the Apple A8 and A7 chip – do not update to iOS 11, at least until the iOS 11.1 update comes out which fixes most of the bugs and battery drain issues. For iPhone 5s users my recommendation is not to install the iOS 11 update at all. If the battery problems do not hit you, your iPhone will definitely slow down quite a bit after the update.