Fix Samsung Galaxy S25 Ultra Battery Drain Fixā If your Samsung Galaxy S25 Ultra is experiencing battery drain after a recent software update, youāre not alone. Many users report a sudden drop in battery performance due to background processes, system optimizations, or app conflicts. While updates are meant to improve functionality, they sometimes introduce issues that affect battery life. Fortunately, there are several steps you can take to fix the problem. Tweaking settings, optimizing battery usage, and identifying power-hungry apps can help restore typical performance. This guide will walk you through practical solutions to extend your battery life and ensure your device runs efficiently. Whether the issue is due to system changes or rogue apps, these methods will help you fix the battery drain on your Samsung Galaxy S25 Ultra after an update.
Why does the Samsung Galaxy S25 Ultra battery drain happen after the update?
However, before we continue, you may want to know a few things about Samsung and its regular OS updaBattery, the Galaxy series mobiles, and the flagship-level series. Samsung has rolled out an OTA update for these models to fix the various bugs reported by users. However, while this update is supposed to fix the previous bugs experienced by the users of these Samsung device models, it also tends to come with a bug that makes the devices consume a lot of Battery. Not all Galaxy mobile users reported this battery drain issue, anyway. But if youāre among the affected users, we have a solution.
However, this battery drain issue seems to be associated with Galaxy devices running onĀ One UI. Nevertheless, we have a couple of solutions, none of which is hard to practice.
After installing the update, how can I fix battery drain issues on my Samsung Galaxy S25 Ultra (SM-S938B)?
Whenever a successor version of Android is released, it always focuses on Battery improvement. We often notice battery drain issues after the latest security patch update or significant upgrades. But sometimes, due to some battery glitch, it can happen on the opposite side. You can use the below-fixed methods when facing the battery drain issue in your Samsung Galaxy S25 Ultra.
1. Install the latest software
You may need to check for a newer software update available for your device. To do so, follow the steps below. The bug causing your Galaxy device to consume a lot of Battery has likely been fixed in a newer software version, so you should upgrade to the most recent version of your device. It is wise to take a complete backup before updating your mobile.
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Go to your mobile device settings.
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Scroll down to the About Section and click on the āSoftware updateā option
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Tap the āDownload and installā option
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Wait for the search to complete to see if any batteries are available.
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If thereās an updated version, click the downloaBatteryn to update your device software.
However, if there is no more original version, kindly try other solutions below.
2. Sleep most power-consuming apps
It may bring an end to this issue. It turns off most auto-run and irrelevant apps that run in the background and drain your battery quicker. The option to sleeBatterye apps that make more use of your Battery is also available in the device care option. Follow the steps below to sleep most apps on your Galaxy device running on One UI.
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Go to your settings and select the āDevice Careā option.
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Look at the bottom; many icons are available; click the āBatteryā icon.
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Youāll see all the apps draining your Battery.
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Click on them one after the other and toggle the switch beside āPut app to sleepā to be active.
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It will prevent the app from running in the background, and We can improve your battery life.
You can even choose to uninstall the app if it is not essential. Finally, you may change the Power Mode to āHigh Power Saving Mode.ā Click on the āMoreā icon to access more battery optimization options.
3. Auto Optimization
Auto-optimizing your device battery performance is a feature built into Samsungās new devices that allows you to delete cache files, stop irrelevant processes in the background, and drain your device battery. It is one of the best ways to solve this battery drain issue. In some cases, optimizing the battery performance will help make everything function as it should.
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Go to your Samsung Galaxy S25 Ultra device settings.
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Scroll down until you see theĀ Device CareĀ option; click on Device Care.
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Click oBatteryhree-dotted vertical lines at the top right corner and select āAuto-optimization.ā
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Set the time when the auto-optimization should always run.
You may need to set a time that you donāt often use your device, maybe during the night battery4. Natural Battery Calibration
Generally, most mobile phone battery issues are caused by recalibrating the Battery. This action is simple but takes a long time, and it is the best solution to fix battery drain issues on Galaxy Batteries running on One UI. Follow the steps below to recalibrate your Samsung Galaxy device battery.
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Use the Battery until it drains completely. Ensure you use the device until the BatBatteryts are 0% and power off. Do not attempt to charge the Battery during this period; ignore the low battery warning and drain the Battery completely.
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Once the device powers off by itself, charge it back to 10Batterydo. Please do not attempt to boot the device or remove the charger until it reaches 100%.
Repeat the two steps: drain the Battery and charge it back to 100%
This process requires a steady power supply as the device is not supposed to be unplugged during the charge period until it reaches 100%.
After doing this two consecutive times, your Battery will be recalibrated, which might resolve the issues youāve been facing for a long time.
5. Recalibrate your Battery using USSD codes to deal with the Samsung Galaxy S25 Ultra battery drain issue
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Launch your device dialer and dial this code ā *#0228#
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Follow on-screen Instructions
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Restart the device
6. Diagnose apps using Safe Mode
Safe Mode allows us to turn off third-party apps. When you donāt face any issues in Safe Mode, the problem with the battery drain is caused by non-system apps. So, you have to find which app to remove. Start with the last installed app. You can boot your mobile into Safe Mode by pressing the Volume Down power button. The combination may vary depending on the manufacturer. Even in safe Mode, you must try other methods if you face a problem.
7. Clear partition cache
Another solution is to clear the cache. When caches build up on mobile phones, they can cause malfunctions. Thus, removing all the caches on your device may help fix your battery issue.
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Before going to this option, take a completeĀ backup. Start by powering off the device.
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Press the Volume Up, Volume Down, and Power keys to boot into Samsung Galaxy S25 Ultra recovery mode.
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Use the volume keys to navigate and the Power key to launch an option; select āclean cache partition.ā
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Ignore the warning message that will appear on your screen and continue
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Restart the device after these processes.
8. Disable unwanted apps using ADB to fix the Samsung Galaxy S25 UltraĀ battery drain issue
You can often disable/remove bloatware apps using Stock Android phones. However, if you use a Custom Skin OS, the chances of injuring the Bloatware apps are lower. However, we can Disable the Apps using ADB without root. The methods may vary depending on the manufacturer. You have to find the particular Bloatware apps and disable them. I will give the overall idea about ADB steps and commands. However, the list of packages may vary depending on the manufacturer.
- Download theĀ ADB drivers. Install it on your PC.
- EnableĀ USB DebuggingĀ Mode andĀ OEM Unlock; youāll find these options inĀ Settings >>> Developer options. If you didnāt see the developer options on your settings menu, go toĀ about >>> build number.Ā Click on the āBuild NumberāĀ row about ten times regularly to activate the āDeveloper OptionāĀ on your device.
- Connect your mobile with a PC and unlock your mobile (Screen Lock).
- Open a command prompt as Administrator and type below to check the ADB status.
- adb devices
- The above command will display some code for device detection. If you havenāt received any response, check with the USB cable. If you get a response, move to the below commands.
- You can turn off the apps based on their adb package names. The command below will give you the package names.
- adb shell pm list packages
- You can exclude unwanted apps based on their title. After that, use the am force-stopĀ andĀ pm turn-off commandsĀ with the Application package name.
- You can enter the commands individually or all commands by hitting Enter. You can get the application package name in the Play StoreĀ URL. It will start withĀ com.instagram.androidĀ like that.
- am force-stop package name(e.g: com.sprint.w.installer)
Ā Ā Ā pm disable-user package name
- Restart your mobile when again stuck on your Samsung Galaxy S25 Ultra mobile boot logon and move to different methods.
9. Reset Your Mobile
Take a complete backup of your mobile. You can do a soft or hard reset. If you follow all the methods and still face issues, you can reset your Samsung Galaxy S25 Ultra. To reset your mobile, Go to settings> System>Reset Options> Reset app preferences/ Factory Reset.
- Soft Reset/App Preference Resetā This option will remove all the custom settings we made and return to the default settings. It will not delete user data.
- Hard Reset/Factory ResetāThis will remove all user data. Your mobile OS will become new, like when you purchased it, and you must set everything up from the beginning.
You can also use your mobile recovery to reset when you canāt boot into your Mobile OS.
9.1 Stock Recovery Method
- Switch off your device. This will boot your mobile into Recovery mode. To do this, press and hold down the Volume Up + Power buttons simultaneously for some time. Then, enter Stock Recovery mode.
- If you donāt use Rooted mobiles, you have Stock Recovery, which your official mobile manufacturer usually provides. If you have stock recovery, you have the direct option of āWipe Data/Factory Reset.ā Navigate to this option and confirm it using the power key button. Remember, I will delete all our mobile data. So, backup first before the process.
9.2 TWRP Recovery Method
When using Rooted mobiles, you use Stock Recovery or TWRP custom recovery. If you have Stock Recovery, you can use the above process. When you install TWRP on your mobile, follow the steps below.
- The Key combinations will boot your mobile into TWRP Recovery mode.
- On the Home screen, you can find the option āWipe.ā Select the wipe option; you will receive further details. Select āDalvik, Data, and Internal Storage.ā Donāt select System; it will wipe your OS. After selecting other choices, swipe to erase the data. When the process is complete, return home and boot into the OS.
10. Flash Complete Firmware using ODIN
We will launch firmware in your Samsung Galaxy S25 Ultra mobileās boot logo. It is a data-loss process. So when you donāt have any choice and none of the above methods work for you, you can use them. Refer to Flash Samsung Galaxy S25 Ultra Firmware using ODIN.
Wrap Up
People always face this kind of battery issue after the software update. Even if the software update process looks simple, 5-10% of people always face problems making OTA updates. Thatās why we suggest you always back up beforeĀ updatingĀ your mobile. Always use cloud photo backup services likeĀ Google Photos. Compared with other mobile manufacturers, with the help of Samsungās available tools, we can fix your Samsung Galaxy S25 Ultra battery drain issue.
If you are facingĀ freeze and unresponsive issues on your mobile, You should try different methods than those mentioned above. Ensuring your previous energy savings options are turned on after the update is always wise. Based on your available storage and app size, battery usage may vary. When you are confident that the settings are perfect for battery optimization, you can follow the above steps to fix your mobile. Comment below when you try methods different from the ones above, and let us know if those techniques help you. We try to add if those methods work for everyone.

Selva Ganesh is the Chief Editor of this blog. A Computer Science Engineer by qualification, he is an experienced Android Developer and a professional blogger with over 10 years of industry expertise. He has completed multiple courses under the Google News Initiative, further strengthening his skills in digital journalism and content accuracy. Selva also runs Android Infotech, a widely recognized platform known for providing in-depth, solution-oriented articles that help users around the globe resolve their Android-related issues.
Iāve tried everything before this, but your steps actually worked. Much better battery life now.
This post is a lifesaver. I was considering returning my phone before this.
Your article was spot on. Disabling some features really made a difference.
I followed your tips and the battery drain issue is finally resolved. Appreciate the help!
I had no idea background apps were causing the issue. Thanks for the thorough breakdown.
Thanks for the guide! My S25 Ultra lasts way longer now.
Thanks! I thought my unit was defective, but it was just misconfigured settings.
Great advice! Battery performance has noticeably improved since I applied the fixes.
Finally, a solution that works. My Galaxy doesnāt die before noon anymore.
Simple and effective. My S25 Ultra runs cooler and lasts all day.
Appreciate this tutorial! Iāve shared it with a few friends having the same issue.