How-To

How to Fix Apple Watch Battery Drain

By Adam Davidson

Updated March 11, 2024

If your Apple Watch battery isn’t lasting as long as you’d like, this guide can help you fix Apple Watch battery drain issues.

The Apple Watch is one of the most popular smartwatches on the market. Along with common features you’d expect from a smartwatch, the latest models include health monitoring tools, such as heart rate monitoring, ECG measurements, sleep tracking, and blood oxygen levels. All of these features need power. The Apple Watch is intended to go a full day before it needs charging, but you may find that you’re having to charge it more often than that. If this is the case, there are some things you can try to fix Apple Watch battery drain issues.

Why Does My Apple Watch Die So Fast?

There are several reasons why your Apple Watch battery might die too quickly. Your Apple Watch display might be using too much power in Always On mode, which will mean you’ll have to charge it up more.

If the time your screen stays on is set for too long, this can also impact your battery performance. Other settings, such as the screen brightness and animations, will also cause battery drain. Your Apple Watch screen is also likely to switch on when you shake your wrist with Wake on Wrist Raise enabled.

If you’ve tried everything (including enabling all available power-saving measures listed below), then it could point to a battery fault. You’ll need to speak with Apple if that happens, as the Apple Watch battery isn’t designed to be serviceable.

How to Disable Always On Display on Apple Watch

One of the biggest drains on your Apple Watch battery is the display. The longer your watch screen is powered up, the quicker your battery is going to drain. If you have an Apple Watch Series 5 or above, your watch will have Always On mode enabled by default. This mode ensures that the time is always visible on your Apple Watch, along with your watch face or most recently used app.

Although the screen will dim somewhat when your wrist is down, this still uses more battery than a blank screen does. To prolong battery life, you may opt to turn off Always On mode or to tweak the settings a little. Here’s how to do it.

1. Open the Settings app.
   
2. Scroll down and tap Display & Brightness.
   
3. Select Always On.
   
4. To disable Always On, toggle the switch to the Off position.
   
5. If you want to leave Always On enabled but want to reduce the amount of information that your Apple Watch will show, tap on one of the options under Wrist Down.
   
6. For each option, you can choose whether that type of information will display on your watch face when your wrist is down. Turning these off may help to reduce battery drain.

How to Turn Off Wake on Wrist Raise

Wake on Wrist Raise is a feature that automatically turns your Apple Watch screen on when you raise your wrist to look at your watch. This saves having to tap the screen to wake it.

Since this feature involves the use of motion sensors, it can contribute to battery drain. You can turn this feature off in the Apple Watch settings.

1. Launch the Settings app.
   
2. Scroll down and select Display & Brightness.
   
   
3. Toggle Wake on Wrist Raise to Off.
   

How to Reduce Wake Time

When you tap your Apple Watch to wake it, if the Always On setting is off, your watch screen will turn off again after a short period of inactivity. You can specify how long this is in the Apple Watch settings.

By reducing your Apple Watch’s wake time, you can reduce the drain on your battery.

1. Open Settings.
   
2. Select Display & Brightness.
   
3. Scroll to the very bottom of the screen and tap Wake Duration.
   
4. Select Wake For 15 Seconds.
   
   

How to Disable Background App Refresh

Background App Refresh allows your Apple Watch to update apps even when they’re not open. This can be very useful for some apps but may not be that important for other apps. Since updating in the background requires power, this can become a major source of battery drain.

Thankfully, you can disable Background App Refresh completely or disable it for specific apps. You’ll need to do this through your iPhone.

1. Open the Watch app on your iPhone.
2. Tap General.
   
3. Select Background App Refresh.
   
4. Toggle Background App Refresh to Off to turn it off completely, or turn it off for individual apps in the list of apps beneath.
   

How to Reduce Apple Watch Brightness

The brighter the display on your Apple Watch, the bigger the drain on your battery. You can minimize this by turning down the brightness on your Apple Watch.

You should be aware that with the brightness set low, it may be much harder to see your watch face, especially in bright sunlight.

1. Open the Settings app.
   
2. Select Display & Brightness.
   
3. Tap the Brightness Down icon or turn the digital crown to reduce the brightness.
   

How to Turn on Workout Low Power Mode

When you do workouts using your Apple Watch, information about these workouts will be displayed on your watch face if Always On is turned on. The heart rate sensor will also measure your heart rate throughout the workout. By turning on Low Power Mode during a workout, the Always On display and the heart sensor will be turned off, allowing you to conserve battery power whilst you’re working out.

With the heart rate sensor turned off, however, estimates of energy burned during your workout will be less accurate. Here’s how to configure your Apple Watch to automatically enter Low Power Mode when you start a workout.

1. Launch Settings.
   
2. Scroll down to the bottom of the screen and tap Workout.
   
3. Toggle Low Power Mode to On.
   
4. For additional power savings, toggle Fewer GPS and Heart Rate Readings to Off.
   

How to Turn Off Hey Siri

Using Siri on your Apple Watch makes it easy to perform actions such as playing music or finding out about the weather just by using your voice. The way that Siri is activated will have an impact on your battery life, however. Activating Siri by holding down the digital crown requires a lot less battery power than using the Hey Siri option.

This feature allows you to activate Siri just by saying that phrase, but since it requires your Apple Watch to be constantly listening, it uses up more battery.

1. Open Settings.
   
2. Scroll down and select Siri.
   
3. Toggle Listen for to Off.
   
4. You might also want to turn off Raise to Speak. This feature activates Siri when you raise your wrist and then immediately start to speak.
   

How to Turn on Reduce Motion to Limit Animations

Like all Apple devices, your Apple Watch uses some subtle animations when performing actions that you may not even notice. For example, if you tap the side button to open your recent apps, the apps will slide into view from the bottom of the screen. This type of animation uses more battery life than simply displaying the apps would do.

If you’re having issues with battery drain, you can try turning these animations off by activating the Reduce Motion feature.

1. Launch Settings.
   
2. Scroll down and tap Accessibility.
   
3. Tap Reduce Motion.
   
4. Toggle the Reduce Motion switch to On.
   
5. Now, when you press the side button, the last used apps will appear instantly without any animation effects.

Update watchOS

If you’ve tried the steps above, and your Apple Watch is still draining battery, you may need to consider updating watchOS. Installing the latest version of the operating system could help to reduce Apple Watch battery drain issues. You can do this either through your watch or through your iPhone.

How to update watchOS on your Apple Watch

1. Open the Settings app.
   
2. Select General.
   
3. Tap Software Update.
   
4. If your Apple Watch is up-to-date, you’ll see a message to this effect.
   
5. If an update is available, follow the on-screen instructions to install the most up-to-date version of watchOS.

How to update watchOS on your iPhone

1. Open the Watch app on your iPhone.
2. Tap General.
   
3. Select Software Update.
   
4. Your iPhone will check for updates. If your Apple Watch is up-to-date, you’ll see a message confirming this.
   
5. If an update is found, follow the instructions to install the update.

Pair Your Watch Again

If you’re still having problems with battery drain on your Apple Watch, it may be due to your iPhone and Apple Watch not being correctly paired. Try unpairing your Apple Watch and then pairing it again to see if this helps.

How to unpair your Apple Watch

1. Open the Watch app on your iPhone.
2. In the My Watch tab, tap All Watches at the very top of the screen.
   
3. Tap the information icon next to your Apple Watch.
   
4. Select Unpair Apple Watch at the bottom of the screen.
   
5. Confirm your decision, and your Apple Watch will unpair from your iPhone.
   
6. To pair them again, bring your iPhone near to your Apple Watch. When the pairing screen appears, follow the on-screen instructions.

Get More Out of Your Apple Watch

I know from experience nothing is worse than being halfway through the day with a dead watch on your wrist. Hopefully, one or several of these tips will help you extend the battery life on your Apple watch.