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11 Easy Ways to Fix Samsung S21/S22 Ultra Battery Braining Fast

Axel Nash

Written By Axel Nash |

Are you looking for a way to fix the S21 Ultra Battery Draining Fast?

The Galaxy S21/S22 series is one of the best Android smartphone series. Unfortunately, some users still face the battery draining issue. Especially the ones with Samsung Galaxy S21 and S22 Ultra phones. It is pretty annoying. But you can solve the problem by applying the proper techniques, which you'll find in this article. Let's get started!

s21 ultra battery draining fast

S21 Poor Battery Life May Caused by Camera Sensor

The Samsung Galaxy S21 Ultra users have been complaining about a strange battery drain issue on their devices, but Android’s regular battery stats monitor doesn’t find anything wrong. Instead, they found that the camera sensor may cause this only by utilizing advanced battery monitoring apps.

That could be why Samsung does not take this seriously and did not respond positively to all related complaints.

Tips to Fix Samsung S21/S22 Battery Draining Fast

Have S21 Ultra Battery Draining Fast issue? Try the following fixes:

Fix 1: Enable Dark Mode

Enabling Dark mode on Samsung Galaxy S21 Ultra phones prevents night-time battery depletion. In addition, it allows you to maintain the quantity of light shown by each pixel. It is also worth noting that dark mode is less taxing on your eyes.

To enable the Dark Mode on S21 Series, follow these steps:

Step 1: Navigate to the Settings menu.

Step 2: Tap the Display button.

Step 3: Enable the Dark Mode.

enable dark mode

Fix 2: Switch to Standard Refresh Rate

The Galaxy S21 Ultra is among the most powerful phones available. It has a high refresh rate or 120Hz display. Battery consumption is directly linked to increased refresh rate, believe it or not. When your smartphone begins to overheat and deplete energy, you can reduce the frame rate and set it to the regular rate, i.e., 60Hz.

To modify the refresh rate on the Galaxy S21 Ultra, follow these instructions:

Step 1: Launch the Settings and then to Display.

Step 2: Navigate to the Motion Smoothness tab.

Step 3: Change the default refresh rate, 120Hz, to the standard refresh rate, 60Hz.

switch to standard refresh rate

Fix 3: Lower Screen Resolution to FHD+

Another aspect that contributes to battery consumption on the Samsung Galaxy S21 Ultra is the usage of high-resolution screens. That's why it's preferable to lower the screen resolution on your Galaxy S21 and S22 smartphones. Here's how to adjust the resolution of your Samsung Galaxy S21 and S22 Ultra's screen:

Step 1: Navigate to Settings, and tap on the Display option.

Step 2: Now, choose Screen Resolution.

Step 3: After that, click on the FHD+.

change screen resolution

Fix 4: Adjust Screen Brightness and Screen Timeout

Adjusting the brightness of your phone's screen might help you use less battery while using it. You can do this by enabling Auto-Brightness, automatically adapting to your surroundings. Furthermore, adjusting your screen timeout can also assist in saving the battery life by not keeping your display on for lengthy periods while it is not in use.

Step 1: Launch the  Settings and then to Display.

Step 2: Scroll down to Screen timeout.

Step 3: Then, choose the period.

adjust screen brightness

Fix 5: Disable 5G Connection when Needed

Many customers want to utilize 5G whenever feasible. That's good as long as your 5G coverage is adequate, but leaving 5G on all the time could negatively influence battery life. Follow these steps to deactivate 5G when necessary:

Step 1: Navigate to Settings and then to Connections.

Step 2: Access the Mobile Networks now.

Step 3: From the drop-down menu, choose LTE/3G/2G (auto connect).

go to mobile networks

Fix 6: Limit Push Notifications

Push notifications sometimes can cause the Samsung s21 poor battery life issue. If push notifications aren't required, limit them by following these steps:

Step 1: Launch the Settings app.

Step 2: Navigate to Notifications.

Step 3: Then, turn off the push notifications for the applications you do not want to get notifications.

limit push notifications

Fix 7: Put Unused Apps to Sleep

You have a lot of applications on your phone that you hardly use. You may be unaware, but some applications continue to operate in the background, causing severe battery consumption on the Galaxy S21 and S22 Ultra. It is preferable to turn off such unneeded applications.

Step 1: Navigate to Settings and choose Device Care.

Step 2: Choose the Battery option.

Step 3: Tap on App power management and then pick Sleeping applications.

Step 4: Now, add the app that you wish to put on sleep.

put unused apps to sleep

Fix 8: Limit Location Services

Turning on your location forces your phone to execute the feature in the background, which drains your power. Turn it off if your applications don't have to know your geolocation. To limit your Location Services settings, take these steps:

Step 1: Go to Biometrics and Security in the Settings menu.

Step 2: Go to Location and select App Permissions to choose which applications you want to prevent from utilizing your location and operating in the background.

limit location services

Fix 9: Enable Power Saving Mode

Samsung's developers know just what to do to extend the life of your battery. As a result, they've included a power-saving mode. Follow these instructions to resolve the Samsung Galaxy S21 battery draining fast issue by enabling the power saving mode:

Step 1: Navigate to Settings and then Device Care.

Step 2: Then go to the Battery.

Step 3: Now, tap on Power mode and pick the mode you want your phone to be in.

enable power saving mode

Fix 10: Optimize Installed Apps

Because the Samsung Galaxy S21 and S22 Ultra run Android OS 11/12, they can optimize their applications and limit how much power they use. Follow these steps to optimize the apps:

Step 1: Navigate to Settings and then to the Battery tab.

Step 2: Now, choose Device Care and then Optimize now.

go to device care

Fix 11: Switch to a New Phone

If your Samsung s21 poor battery life issue is not solved after trying all the above solutions, you need to change your phone. And we recommend getting MobileTrans to transfer important data from the old phone to the new ones for you.

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To transfer data from Samsung S21/22 using MobileTrans, follow these steps:

Step 1: Launch Wondershare MobileTrans on your PC. Select the Phone Transfer option from the above menu, and tap on the Phone to Phone feature.

Note: Make sure that both the phones are connected to your PC.

transfer phone data

Step 2: Choose the file to transfer and press the Start button. It will start transferring. During the transmission, do not unplug or remove the phones.

transfer phone data with mobiletrans

It will finish the transfer in a few minutes. Examine the target phone to see whether all chosen files have been transferred to the device.


It can be quite frustrating to see your Samsung Galaxy S21/S22 ultra's battery running out repeatedly. However, if you've got the S21 Ultra Battery Draining Fast issue, you can use this article's methods to fix it. Moreover, if you plan on changing your phone, we recommend using Wondershare MobileTrans to transfer your essential files from one phone to another

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Axel Nash

Axel Nash

staff Editor

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