[Solved] How to Fix iPhone Battery Draining Fast iOS 16.6

I was very excited with the release of iOS 16.5 & 16.6, about the new features. But as soon as I updated my iPhone; the battery started draining too fast. I don’t know why this happened. But, why is iOS 16.5 and iOS 16.6 version draining my battery?

Well, this is a terrible issue and a number of iOS users have reported about a draining battery on iPhone/iPad after iOS 16 update. There could be a lot of reasons behind the battery drain. But the solutions are pretty simple. Take a look at the article below. We have discussed the issue carefully alongside all the effective ways to get rid of it.

Part 1. Why is iOS 16.5 draining battery fast?

According to a Macworld study, battery depletion problems following an iOS update are widespread and are brought on by the new operating system's propensity to carry out several tasks in the background, such as rescanning images.

Part 3. Restore iOS System to Fix iPhone Battery Draining Fast Without Data Loss

If you are facing a problem that iPhone battery life draining fast after iOS 16.5 or iOS 16.6 update and you could not fix it, there should be something wrong happens in your iOS system. Upon this situation, you should restore your iOS system through a safe method that causes no data loss on your iOS devices.

It is highly recommended to use UltFone iOS System Repair. The tool can help you fix the iOS system problems fastly and esaily, most importantly, without data loss. It can help you solve your iOS system problems and then iphone battery drains fast probelms will be fixed. It is very convenient to use. Take a look:

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  • Step 1Download and Launch UltFone iOS System Repair Download and launch UltFone iOS System Repair on your PC or Mac. Connect your iPhone to the computer and click "Start" to enter the iOS system repair module.
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  • Step 2Select Standard Repair. On the following screen, click "Standard Repair" to proceed.
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  • Step 3Download Firmware Package Before performing the system repair, click the "Download" button to download the firmware package matched to your device. You can choose the location to save the firmware package.
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  • Step 4Start Repairing Operating System Once the firmware package is downloaded, click "Start Standard Repair" to fix the iOS issues. Wait for a few minutes as the system repair process takes place.
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  • Step 5Done with the iOS System Repair After the repair process, your iPhone will automatically reboot, and ios 16.5/16.6 battery drain fast have been resolved. Your device will come back to normal.
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This is the most effective way to fix iPhone battery drain issue without the risk of data loss.

Part 2. How to Fix Battery Draining Fast iPhone After iOS 16.5/16.6 Update

We have mentioned a few tricks below that will help you to iphone battery draining fast after iOS 16.5/16.6 update.

So, read the steps are proceed carefully;

Method 1. Check for Update

Well, at the beginning you should update the iOS 16 to its latest version. This latest version may not be perfect but a lot of issues has been fixed by the company.So, if you are facing iPhone battery drain, check for available updates. The steps are pretty simple, take a look.

  1. Step 1: So, on your iPhone, navigate to ‘General’ via ‘Settings’.
  2. Step 2: Then, tap on ‘Software Update’.

The iOS will start looking for potential updates, if there is any available, you will get the option to install it.

Method 2. Install App Updates

If iPhone battery draining fast with latest iOS, then you may also have to update the apps.

As you have already installed the latest iOS on your iPhone, you will be able to update apps directly from the App Store. Here are the steps.

  1. Step 1: So, navigate to ‘App Store’ and then tap "Today" at the bottom of screen.
  2. Step 2: Tap user profile icon on the right corner of the screen.
  3. Step 3: Then you can see"Update All" or any app you want to update.
update apps on iphone to latest

All the apps on your iPhones will be updated.

Method 3. Restart iPhone

Now, if you are still bothered by the high battery drain of your iPhone; making a restart might help to fix the issues with the iOS system.

restart iphone if battery drains fast all of a sudden

So, if you are getting iPhone 7 battery drain, then use the following steps to restart the device.

  • Step 1: You need to press and hold the Side button until the Power Slider appears on the screen.
  • Step 2: drag the slider to the edge of the screen and the device will be turned off.
  • Now, wait for 30 seconds and turn on the device. This procedure works for iPhone 6, 7 and 8.

But if you are using the iPhone X or any version of the latest iPhone 11, then you need to follow different steps.

  • Step 1: You have to press and hold either of the Volume buttons and the Side buttons together at the same time.
  • Step 2: When the Power Slider appears, drag it to the edge of the screen and the device will be tuned off.
  • Now, just turn if back on, after waiting for a few seconds.

Method 4. Check Your Battery Health

If iOS 16.5/16.6 battery draining fast after the update, then you have to check the health of your battery. You may have already realized this but the condition of your iPhone battery can be responsible for this draining issue, directly. So:

  • Step 1: Navigate to ‘Battery’ from ‘Settings’.
  • Step 2: Then, tap on ‘Battery Health’.
  • Step 3: Now, you can battery's maximum capacity, according to Apple "A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions."
  • check battery health

    If the Maximum Capacity is getting displayed over 80% and the Peak performance Capability is showing, ‘Your battery is currently supporting normal peak performance’. Then, you have nothing to worry.

Method 5. Check,What is Consuming iPhone Battery Life

If is also possible that iPhone battery draining fast after iOS 16 update due a specific application or a new feature. So, you need to check and figure out what is causing the battery drain.

  • Step 1: So, navigate to the ‘Settings’ of your iPhone and tap on ‘Battery’.
  • Step 2: There will be a list. Go through it and find out which of the apps or services in the list consuming the battery.
battery consuming ios 13

If you find an app that you don’t use but draining the iPhone battery, then removing such app will be the most reasonable option.

Method 6. Disable Background App Refresh

One of the reasons your iPhone battery draining fast iOS 16, could be the Background App Refresh. While the feature makes it sure that the apps on your iOS device is running smoothly, it surely consumes too much battery.

So, simply disabling the feature will be of great help.

  • Step 1: Simply, navigate to ‘General’ under ‘Settings’ and tap on ‘Background App Refresh’.
  • Step 2: Then, tap on ‘Background App Refresh’ again at the top of the screen and tap on ‘OFF’.
disable background app refresh to save battery ios 15

The said feature will be turned off completely.

Method 7. Adjust The Brightness to Lower

More often or not; users tend to use their iPhone on full brightness. Which makes the battery life bad after iOS 16. So, adjusting the brightness will be very helpful.

  • Step 1: Navigate to ‘Settings’ and tap on ‘Display & Brightness’.
  • Step 2: There will be a brightness bar, turn it lower.
adjust brightness to low to save ios 15 battery

After you have lowered the brightness, the iPhone will consume less amount of battery life.

Method 8. Use Low Power Mode

Using the low power mode could effectively fix iOS 16 battery life bad. The steps are pretty simple:

  • Step 1: Navigate to ‘Battery’ under ‘Settings’.
  • Step 2: You will find ‘Low Power Mode’ option. Toggle the switch beside it to enable the feature.
enable low power mode to extend battery life

Enabling this feature will make the iPhone consume less amount battery life.

Method 9. Disable Unnecessary Location Services for Apps

Location service can also drain iPhone iOS 16 battery life. Simply, turning off the location service for apps will be a huge step towards saving battery life on an iPhone.

  • Step 1: Go to ‘Settings’ on your iPhone and tap on ‘Privacy’.
  • Step 2: Then, tap on ‘Location Services’ and toggle the switch beside it to disable it.
disable location services for apps to fix battery dropping fast

Method 10. Reset iPhone to Factory Settings (Data Wipe)

Factory Reset is the official way to fix battery issue but it is also the method we would least recommend. This is a very risky method and it will also cause permanent data loss.

So, after considering all these should go for this solution.

  • Step 1: On your iPhone, navigate to ‘General’ via ‘Settings’ and tap on ‘Reset’.
  • Step 2: There, choose ‘Erase All Content and Settings’.
  • erase all content and settings to fix battery issue
  • Step 3: You will be asked to provide the passcode and the Apple ID in order to confirm this action.

After the confirmation the device will be wiped clean, it will turn into a completely new device.

Part 4. People Also Ask about iPhone Battery Draining Fast after iOS 16.5/16.6 Update

Q1. Does iOS 16.5 fix battery drain issues?

Since the iOS 16.5 update, iPhone customers have been complaining about their devices' short battery lives. Apple is preparing to release the iOS 16.5.1 patch soon to address the power drain issue in order to fix this.

Q2. Is iOS 16.5 1 draining battery?

Here's what to do if your phone is impacted. iPhone customers claim Apple's iOS 16.5.1 upgrade is RUINING their battery life, with tales of charge disappearing within hours. Apple's most recent update has drawn criticism from iPhone users who say it is'murdering' their battery life.


So; why does iOS 16.5/16.6 drain my battery? Well, there could be a lot of reasons behind it. But the good thing is the said issue can be fixed very easily. The tips and tricks we have discussed on the article, they are very effective.

But the most effective solution is to use UltFone iOS System Repair for the instant repair of the iOS system. But we won’t recommend the Factory Reset method. It is effective but there are too many drawbacks.

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