How to fix an iPhone 7 Plus issue on rapid draining of battery life after updating iOS? [Troubleshooting Guide]

Major software updates not always bring good things to all receiving devices. In fact, various types of post update issues have manifested including those affecting the device performance, connectivity, power and battery life. This is normal though given the fact that not all end-users have configured their respective devices based on the actual system structure from which the update was based on and tested before it was rolled out. Tackled in this post is one of the common problems faced by users of the Apple iPhone 7 Plus after installing the latest iOS 11 update.

Many iPhone users have found out that their iPhone battery is draining faster than usual after updating to the latest version of iOS. This can be very frustrating especially to heavy users who often used the device in carrying out various tasks either for personal purposes or business transactions. Learn why post update problems like this occur on your iPhone and how to deal with it.

Why is your iPhone 7 Plus battery draining so fast after updating iOS?

Major updates can revamp the current structure of your iPhone system. Thus it is possible that some of your personal settings and customized options will be erased or overridden by the latest system structure brought by the update. If not completely overridden, there is a higher chance of some settings may not blend with the current iOS structure thus inflicting conflict and eventually affects the overall functions of the iPhone. This is when various issues begin to manifest including unusual battery drain.

Another possibility is that the update might have embed new features that automatically enables on the device once the update has been successfully implemented. Some of these features when enabled would usually used up significant portion of the battery life. The more of these features are active, the faster your iPhone 7 Plus battery drains. This is where users intervention is necessary. As much as possible, try to determine which among the most relevant settings have been enabled or turned on by the update and if necessary, turn them off.

The battery can also drain faster with constant or prolonged usage on the device. Given the number of new features the iOS 11 integrates, people would normally get excited and more curious to try each of the newly added features and services to that point of not giving the iPhone a time to break. Apparently in this case, it is not the new system that causes the problem.

How to deal with battery draining issue on your iPhone that is caused by an iOS update?

If you just updated to iOS 11 recently, try to give your device a day or two for it to finish the entire update implementation. Major software updates usually come in huge file size since it contains many new features and services. Given the huge file size alone can take a day or even two for the entire update file to be completely installed on the device. It is normal for the battery to drain fast during the installation as the device is working hard to carry out various system maintenance processes in the background. This is also the main reason as to why aside from patience, keeping your device plugged into the power source is highly recommended when installing an update. Once the processes are complete, the battery life should improve on its own.

Or if you haven’t done it already, you may also consider installing the follow-up minor software updates to iOS 11 as these updates contain fixes to address certain bugs caused by the prior update since the major iOS 11 revamp.

  • To check if a new software update is available, head over to your iPhone Settings-> General-> Software Update. If you see an alert message telling about a new update available, backup your device then download and install the new update.

Apple has already released minor updates following the major iOS 11 to address problems caused by some bugs. Any of these minor updates might be the key to fixing bugs that has caused your iPhone 7 Plus battery to drain faster than usual.

Otherwise, you may refer to the following recommendations and battery saving tips to deal with poor battery life after iOS 11 update.

Try to apply the Battery Life Suggestions on your iPhone settings menu.

Changing some settings on the iPhone will do some wonders to improve its battery life. If iOS 11 draining your iPhone 7 Plus battery so quick, then here’s how to save it.

Check your iPhone settings to learn what iOS suggests to change so as to prevent the battery from dying so fast. In iOS 11, your iPhone offers battery drain suggestions in Settings. You may opt to try doing any of them and then see if there are any improvements.

Check your battery usage and determine which app uses more power on your device.

Apps are also among the possible reasons as to why your device is experiencing rapid battery drain. You may perceive that the software update causes the problem but actually an app is to blame. It is possible that a single app can utilize a significant amount of battery especially if it’s misbehaving. As remedy, quit those apps or uninstall the app completely if you find it not really useful. Among the apps that usually drains down your battery include but not limited to social media apps, location-based apps, games, and other complex media apps. Messages with heavy usage of stickers and animated photos (GIFs) are also among the possible culprits.

  • To check and make sure everything is normal on the battery consumption for each app, head over to Settings-> Battery-> Battery Usage. You may need to tap on the app’s menu to view more details on its battery usage. If an update is available for certain app, tap the option to install the update.

Doing so will help optimize the app or fix certain bugs that might have triggered the app to use up more power. If you don’t set your device apps to automatically install updates when available, then do it manually. Here’s how:

  1. Open the App Store.
  2. Tap Updates at the bottom right side of the screen.
  3. Tap option to Update All on the top right corner.

Apps developers also have to issue an update to catch up with the new iOS update released by Apple. So they usually release an update to ensure that their apps can cope up with the new iOS platform.

Reboot your iPhone 7 Plus (soft reset).

You may have done it already but give it another try or do it three times more. A simple reboot can also help improve battery functions on the device especially if the culprits are errant processes in the background.

  • To reboot your iPhone 7 Plus, press and hold the Power button until the Slide to Power Off screen appears. Drag the slider to power off your device completely. After about 30 seconds, press the Power button again until the Apple logo shows up.

If the usual reboot cannot be done as your device gets frozen or unresponsive, you can do a force restart instead.

  • To do a force restart on your iPhone 7 Plus, press and hold the Power button and Volume Down button simultaneously for about 10 seconds then let go of the buttons when the Apple logo appears.

No data will be erased in either of these reboot processes so you’re safe.

Turn off Raise to Wake feature on your iPhone 7 Plus.

Raise to Wake is an iOS feature works by turning the device screen on when it detects the iPhone has been lifted. While this feature can be useful to others, having it turned on can likewise run down the battery life especially if you always have your device in hand while doing various activities in which movement is involved. To rule this out from the possible causes and save some battery life at the same time, you can just turn off this feature on your iPhone. Here’s how to get there:

  1. Tap Settings from Home.
  2. Tap Display & Brightness.
  3. Tap Raise to Wake.
  4. Toggle the switch to turn the feature OFF.

Reduce screen brightness on your iPhone 7 Plus.

Reducing screen brightness on the device can also help save some power. While having a brightly lit screen looks fantastic, it consumes a lot of power which then leads to a reduction in battery life. Lowering the setting can help make your iPhone battery last longer.

  • To do so, go to Settings-> Display & Brightness-> Brightness-> then drag the slider to adjust or lower the screen brightness to your preferred level.

Enabling auto-brightness on your iPhone 7 Plus can also help conserve the battery for as long as you’re not using your device often in a sunny location or under bright lightning as it will adjust the screen to be very bright. This then uses more power, which inflicts faster draining on the battery.

Turn off Location Services for some apps.

Turning off Location Services can also help reduce battery consumption at it prevents your iPhone from accessing the GPS networks more often. Disabling location services for apps and services that you don’t use is therefore recommended.

  1. To do so, head over to Settings-> Privacy-> Location Services.
  2. Select only those apps that you want to enable location services for. Just toggle the ON/OFF switch for particular apps to configure them accordingly.

Turn off Background App Refresh.

As the name implies, this feature works by refreshing your apps in the background. This means that your apps continue to update even when you are not using them. This is done to save loading times when opening up apps as the latest information should be ready and waiting since it refreshed in the background. While this can help speed things up in terms of loading apps on your device, keeping the feature turned on can also cause the battery to drain fast as the apps are allowed to continually update and refresh in the background. You can turn off this feature with these steps:

  1. Tap Settings from Home.
  2. Tap General.
  3. Select Background App Refresh.
  4. Tap the switch next to Background App Refresh to turn it OFF.

Some iPhone users who have updated to iOS 11 found that the update automatically turns on Background App Refresh even when it was already turned off before the update was installed. So be sure to check and if necessary, turn it off again on your iPhone settings.

Enable Reduce Motion feature on your iPhone 7 Plus.

Reduce Motion is an iPhone feature that limits animation functions. Your device is fully loaded with animation functions from flashy messages from the Messages app and switching between different screens. While each animation may not utilize much of the iPhone’s battery life, doing these transitions more often can add up quickly and eventually drain the battery. To prevent this from happening, you can use the Reduce Motion feature to set some limits. Here’s how to enable this feature:

  1. Tap Settings from Home.
  2. Tap General.
  3. Select Accessibility.
  4. Tap Reduce Motion.
  5. Tap the switch next to Reduce Motion to turn it ON.

Use Low Power Mode, if necessary.

If none of the prior workarounds is able to help and that your iPhone 7 Plus battery is still draining so fast, try to use your device in Low Power Mode instead. You may consider this a temporary remedy while waiting for an official fix from Apple. However, some of the iPhone features may not be available in this Mode.

With Low Power Mode enabled, features like automatic mail checking are turned off, background activities are disabled, and screen brightness is reduced to make the battery last longer.

  • To access and enable Low Power Mode on your iPhone 7 Plus, go to Settings-> Battery-> Low Power Mode-> then toggle the switch to turn the feature ON.

Downgrade iOS or restore to a previous iOS backup file.

If the above workarounds failed to resolve the battery issues and waiting for the next iOS update rollout is not your option, then you may consider resorting to iOS downgrade. In this process, you will need to use a computer with the latest operating system and latest version of iTunes app installed. Also note that downgrading to prior iOS version from iOS 11 can also cause data loss. You can backup your device before you start downgrading. Here’s how it’s done:

  1. Connect your iPhone to the computer. You can use either Mac or Windows PC.
  2. Open iTunes on the computer.
  3. Select your iPhone 7 Plus in iTunes by clicking on the small device icon in the upper left side of the iTunes screen.
  4. Navigate to the device Summary section in iTunes.
  5. Click the Update button to update iOS or Restore to restore from a previous iOS backup.
  6. Select the iOS backup file you want to use. Be sure to choose the correct iOS file for your device.

Follow the onscreen instructions to complete the entire iOS downgrade process. When the downgrade is complete, your iPhone will boot back into iOS 10. It can take a while especially if the device has a large amount of used storage.

Escalate the problem to Apple Support

If none of the previous workarounds is able to remedy your iPhone 7 Plus battery and downgrading iOS is not an option for you, then  at this point you should contact your carrier. Also consider escalating the problem to your device carrier or Apple Support for it to be properly addressed in the next update rollout. They might also be able to give you more insights as to what actually went wrong and what’s the right thing to do to rectify the issue.

Engage with us

If you have other issues with your Apple iPhone 7 Plus, we are always willing to help. Contact us through our iPhone issues questionnaire and provide us with all necessary information about your problem so we can find a solution to your issue.