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

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.

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.

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."


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.

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’.

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.

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.

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.