A ​​quickly discharging battery is one of the most common problems among owners of smartphones Samsung based on Android. Even new models like Galaxy S23 Ultra or Galaxy A54 can lose charge within a few hours if the system runs “gluttonous” applications. But how can you accurately determine which one is to blame? In this article we will look at all available methods from standard tools One UI to hidden functions and third-party utilities.

It is important to understand that one application is not always to blame. Sometimes the battery runs out due to background processes, synchronization errors or even viruses. We will show you how to identify the real “culprit” rather than guessing from the tea leaves. Let's start with the simplest methods and gradually move on to advanced techniques that not all users know.

If you have already tried to go into the battery settings and found nothing, do not rush to reset your phone to factory settings. Perhaps you just don't know where to look. For example, in Samsung there is a hidden diagnostic modethat shows energy consumption in real time with an accuracy of milliamps. Read more about this and other life hacks.

1. Standard battery report in One UI

The most obvious way is to look at the Settings → Device care → Batterysection. Here Samsung collects statistics on charge consumption for the last 24 hours or since the last charge. But many users miss key details:

  • 📊 Consumption graph —shows peak loads. If you see a sharp jump when the phone was lying idle, this is a sign of background activity.
  • ⚡ List of applications — sorted in descending order. But pay attention not only to percentages, but also to activity time (for example, 5% for 10 minutes of work is a lot!).
  • ⚙️ Button "More" - reveals hidden processes that are usually not visible in the main list (for example, Android System or Google Play Services).

However, this method has serious drawback: it shows only the general picture, without detailing specific actions. For example, if Instagram ate 15% of the charge, it is not clear whether you were scrolling for a long time. feed, or the application itself ran in the background to update the content. For an accurate diagnosis, other tools are needed.

⚠️ Attention: After updating to Android 14 or One UI 6.0+ the battery menu interface may differ. If you do not find the “Device Care” section, try. path Settings → Battery and device care.
📊 How often do you check the battery consumption on your Samsung?
Once a week
Only when it's fast sits down
Never checked
I use third-party applications

2. Hidden battery diagnostic mode (for advanced)

Few people know, but Samsung is engineering menu, where the charge consumption in real time accurate to milliamps (mA)is displayed. This is the most reliable way to identify applications that “eat” the battery even in standby mode. To get there:

  1. Open telephone keypad and enter the code: 
    *#9900#
  2. In the menu that appears, select Sys dump → Battery history.
  3. Click Run dumpstate/battery and wait for the report to be generated.

In the report, pay attention to the columns:

Parameter What it means Normal value
Total discharge Total charge consumption per session Depends on the model (for example, for Galaxy S22 —300–500 mAh in standby mode)
Top apps Applications with maximum consumption Must match the standard report, but with exact numbers in mA
Wake locks Processes that do not allow the phone to sleep Ideally - only system services (for example, AlarmManager)

If here you see an unknown application with a consumption of >100 mAh in background is 100% culprit fast discharge. For example, some versions Facebook or TikTok can keep the processor active even after closing.

⚠️ Attention: Not all models Samsung support this code. On new flagships (for example, Galaxy S24), access to the engineering menu may be blocked. In this case, use alternative methods from the following sections.

Try the code #0# instead *#9900#

Install the Phone INFO Samsung application from Google Play

Check for One UI updates

Reset network settings (Settings → General management → Reset)-->

3. Monitoring via ADB (for the technically savvy)

If you are ready to connect your phone to a computer, then ADB (Android Debug Bridge) will provide the most complete information about battery consumption. This method requires a little preparation, but it shows all processesincluding system ones, which are hidden in the standard interface.

Here are step-by-step guide:

  1. Enable developer mode 7 times on the phone: go in Settings → About phone → Software information and click on Build number.
  2. Return to Settings → Developer options and enable USB debugging.
  3. Connect the phone to the PC, install ADB-tools and run the command: 
    adb shell dumpsys batterystats --charged

In the report, pay attention to:

  • 🔋 Top —applications with maximum consumption.
  • ⏳ Wakeups —how many times the process woke up the phone.
  • 📶 Mobile radio —consumption on the mobile network (relevant if the battery runs out due to a bad signal).

The advantage of ADB is that it shows history for several daysand not just the current session. For example, you may find that Google Maps the phone was discharged by 30% three days ago due to background geolocation.

💡

If in the ADB report you saw a process mediaserver with high consumption, this may indicate an error in operation multimedia (for example, a damaged file in the gallery). Try clearing the application cache Gallery or Music.

4. Third-party applications for battery analysis

If standard tools Samsung you are not satisfied, you can use third-party utilities. They often offer more visualization and additional features, such as alerts for unusual battery consumption.

Top 3 tested applications:

App Features Cons
AccuBattery Shows the actual battery capacity, consumption in mAh, time to complete discharge Free version with advertising, some functions are paid
GSam Battery Monitor Detailed report for each application, including system processes Requires root access for full access
Battery Guru Monitors battery temperature and warns of overheating The interface is overloaded, there are a lot of unnecessary notifications

For example, AccuBattery it can show that your battery is worn out by 30% (it is new), and GSam will reveal that Android OS consumes 25% of the charge due to an error in the firmware. The main thing is to give the application time to collect statistics (at least 1-2 discharge cycles).

⚠️ Attention: Some battery monitoring applications themselves begin to consume additional charge due to constant activity in the background. After diagnostics, remove them or disable autostart.
How to distinguish normal consumption from abnormal?

Average battery consumption in standby mode (screen off):

- Galaxy S23/S22: 0.5–1% per hour

- Galaxy A5x/A7x: 1–1.5% per hour

- Galaxy M-series: up to 2% per hour

If your phone loses >3% per hour without active use, look for a problem in background software or hardware failure.

5. Checking the background activity of applications

Often the battery runs out not because of active use, but because background processes. For example, messengers (WhatsApp, Telegram) can constantly synchronize data, and games can download updates. To check this:

  1. Go to Settings → Applications.
  2. Select the application you suspect and click Battery.
  3. Look at the graph background consumption (if it exceeds 5-10%, this is a lot).

Pay special attention:

  • 📱 Social networks (Facebook, Instagram, TikTok) - they often update content in the background.
  • 📍 Geolocation services (Google Maps, Yandex.Maps) - even after closing they can continue to track the location.
  • 🎮 Games (PUBG, Genshin Impact) - some launch background processes to load resources.

If you find such an application, limit its activity:

  1. In the application settings, select Limit background activity.
  2. Disable autorun: Settings → Applications → ⋮ (menu) → Autorun.
  3. Prohibit access to geolocation in the background: Settings → Privacy → Permissions → Geodata.
💡

Even system applications Samsung (for example, Samsung Push Service or Knox) can consume the battery in the background. They cannot be deleted, but can be limited through Settings → Applications → ⋮ → Optimize.

6. Consumption analysis by connection type (Wi-Fi, mobile network, Bluetooth)

Sometimes the battery runs out not because of applications, but because non-optimal network settings. For example:

  • 📶 Weak mobile network signal —the phone spends a lot of energy searching for and maintaining a connection.
  • 🔄 Constant switching between Wi-Fi and 4G/5G —occurs if the router is unstable.
  • 🎧 Bluetooth devices (headphones, fitness bracelets) - some models do not switch to sleep mode correctly.

To check this:

  1. Go to Settings → Connections → Data usage.
  2. See which applications consume the most traffic. If these are instant messengers or cloud services, they also drain the battery.
  3. Enable traffic saving mode for background applications.

It is also useful to check signal quality:

  • Enter the code in the telephone keypad: 
    *#0011#
  • If the value is RSRP lower -110 dBm, the signal is weak and the phone spends extra energy searching for it.
💡

If you often lose the network in the subway or elevator, turn it on in the settings Airplane mode for this time. This will save up to 15% of charge per day.

7. Diagnosis of hardware problems

If all software methods do not help, perhaps the problem is in hardware:

  • 🔋 Wear battery - even after 300-500 charging cycles, the capacity may drop by 20-30%.
  • 🔌 Faulty power controller —the phone may not display the charge level correctly.
  • 🌡️ Overheating —if the case is hot even without load, this is a sign of a malfunction.

To check the condition batteries:

  1. Enter code: 
    ##4636##
  2. Select Battery information and look Level charge and Temperature.
  3. If the temperature is >40°C during normal use, this is an anomaly.

For accurate wear diagnostics, use the application AccuBattery (section Health). If the capacity drops below 80% of the nominal value, it’s time to change the battery. On new models Samsung (for example, Galaxy S23+), this can be done at a service center in 30–60 minutes.

⚠️ Attention: Do not use “folk” methods of calibrating the battery (for example, complete discharge to 0%). On modern smartphones Samsung this can lead to a failure of the power controller. To calibrate, just let the phone discharge to 10-15% and then charge it to 100% without interruptions.

FAQ: Frequently asked questions about battery consumption on Samsung

Why does the battery run out quickly even when I’m not using the phone?

Most likely, they are to blame background processes. Check:

  1. Auto-updating applications in Google Play (disable in the store settings).
  2. Account synchronization (Settings → Accounts and archiving → Automatic data synchronization).
  3. Geofencing in Google Maps or Yandex.Maps (disable in application settings).

Also the reason may be poor network signal —the phone spends energy searching for a connection.

How to find out which application is draining the battery at night?

Use night monitoring:

  1. Before going to bed, charge your phone to 100% and turn off all applications manually.
  2. In the morning, check the report in Settings → Device care → Battery.
  3. If the consumption is >5% in 6–8 hours, the application from the list is to blame “Use in the background.”

For accuracy, set AccuBattery and enable the option Sleep monitoring.

Is it possible to disable Samsung system applications that consume battery?

Yes, but with caution. Some system applications (Samsung Push Service, Knox) cannot be completely removed, but you can:

  • Limit their activity: Settings → Applications → ⋮ → Optimize.
  • Disable autorun: Settings → Applications → ⋮ → Autorun.
  • Use the ADB command to deactivate (requires knowledge): 
    adb shell pm disable-user --user 0 com.sec.knox.seandroid

⚠️ Disabling some services may disrupt the operation of Samsung Pay, Secure Folder or updates security.

Does turning off 5G help save battery?

Yes, but the effect depends on the model:

  • On Galaxy S22/S23 with a processor Snapdragon the savings will be ~10–15%.
  • On Galaxy A-series s Exynos —up to 20%, since these chips are less optimized for 5G.

To disable 5G:

  1. Go to Settings → Connections → Mobile networks → Network mode.
  2. Select LTE/3G/2G (auto).

Minus: Internet speed will decrease, and in some regions 5G may be more stable than 4G.

How to check whether a virus is to blame for battery drain?

Signs of infection:

  • Unknown applications in the battery consumption list.
  • Sharp increase in traffic (check in Settings → Connections → Data usage).
  • The phone heats up without load.

What to do:

  1. Install Malwarebytes or Dr.Web Light and scan the system.
  2. Check the permissions of suspicious applications: Settings → Applications → Permissions.
  3. If all else fails, do a factory reset (Settings → General management → Reset).