Enabling Low Power Mode, allowing customized automatic updating or managing position … can be used as a way to prolong battery for Apple devices.
iOS 9 has been recently launched by Apple with many interesting improvements, one of which is its battery saving mode. However, you can still improve the battery life for the iPhone or iPad with some settings as suggested from Mashable.
Find software consuming much battery
From iOS 8, Apple has added Battery Usage section for users to monitor the status of its battery. On iOS 9, this feature is even better improved. Go to Settings > General > Battery and then you will know some software which are commonly used and how much battery it takes to run them as well.
For those applications which are not necessary, you can remove them to save battery, or adjust it for more using time.
Enable Low Power Mode
Apple has said iOS 9 is optimized to increase the battery life up to an hour compared to those previous versions. Especially with Low Power Mode, users are able to extend another three hours for using time.
This mode enables iPhone, iPad to decrease their performance, turn off the software update and those that are run underground and reduce the frequency of email loading … to save battery power. To switch on, users can go to Settings> General> Battery> Low Power Mode. Additionally, the device will suggest you to open this feature when the battery is down to 20% or lower.
Manage GPS service
One of the causes of low battery on the iPhone is that GPS location service is constantly being activated. It is not until a user opens this app that all the software such as Facebook, Twitter, weather forecast or even Safari … also requires the location information. Users can turn off or limit this by going to Settings > Privacy > Location Services, then disable this application.
Disable notifications and connections if not necessary
After upgrading or reinstalling iOS, the device will automatically activate Bluetooth. Despite its low energy consumption, it would be a good idea to switch this feature off if you are not using. You can apply it all to other similar connections, especially when users leave a Wi-Fi coverage area.
Limit those applications running underground
Background App Refresh feature allows the software to automatically update although it is not running at all, so each time users would receive the latest information popping up. This also means that your battery on the gadget is reduced somehow.
Tips are given that you should enable Background App Refresh if it is truly necessary by going to Settings > General > Background App Refresh.
Turn off effects, animated wallpapers
From iOS 7, Apple has added parallax effect to allow its users to view icons in 3D depth along with additional zooming effect when accessing its folders. These features not only consume much battery but some user says that it produces nausea. To turn it off, you can go to Settings > General > Accessibility > Reduce Motion.
In addition, animated wallpapers are a culprit for low battery for iPhone battery, so users can replace it with static background images.
If you want to maximize your battery life, users have to “sacrifice” some experience in Accessibility. For example, you can shift your entire contents into a black and white display by activating Settings > General > Accessibility > Grayscale. Or adjust contrast and opacity via Increase Contrast and Reduce Transparency.
Or if you want ringing as a notification and consider vibration feature superfluous, you may turn it off in Settings > General > Accessibility > Vibration.
Turn off automatic software updates
Since iOS 7, apps iPhone and iPad can automatically update the latest version of them from the App Store. To turn it off, users go to Settings > App and iTunes Stores > Automatic Updates Downloads and cancel items. Additionally, you can also turn off Music, Apps, and Books to save battery power.
Reduce the screen brightness
One simple and effective way to save battery for iPhone is to lower the screen brightness in case it is too bright to be harmful to the user’s eye. You can quickly adjust those parameters by using the Control Center bar. The alternative is to go to Settings > Display & Brightness.
Even at 50% of the brightness bar, iPhone and iPad screen is still very bright. You should put it down to the point that it is not offensive for your eyes when viewing inside and then can increase it when going outside.
Turn off 3D Touch
Only iPhone 6S and 6S Plus have this feature. Although 3D Touch is one of the important upgrades on new Apple products, it also causes the device to drain its battery faster. To turn it off, users go to Settings > General > Accessibility > 3D Touch.