Power Detector on Xiaomi: Hidden utility or malware?

If you've ever looked at the installed list on a Xiaomi smartphone, you might have noticed a strange program called Power Detector, which doesn't catch your eye, and the name sounds like it's some kind of system tool to monitor the battery. But what is it really? Why do many users wonder if it can be removed, and if it's a virus?

In this article, we will discuss in detail what is Power Detector on Xiaomi, Redmi and other devices. POCO, How it gets to the phone, what functions it does (or does it at all), and we'll give you clear recommendations about whether to leave it or get rid of it, and we'll analyze user feedback, technical details, and even look into the app's code to separate fact from myth.

Spoiler: The answer is not as clear as it sounds, it depends on whether the version of Power Detector you have installed on your device is original (from Xiaomi) or fake (from third parties).

What is Power Detector: Official Description and Reality

Power Detector is not a standard application. MIUI. It's not on Xiaomi's official list of system utilities, and you won't find any mention of it in the brand's documentation, but it does appear periodically on users' devices, which is suspect.

According to the analysis APK-Power Detector is positioned as a tool for:

  • πŸ”‹ Monitoring the battery status (voltage, temperature, charging cycles).
  • ⚑ Optimizing energy consumption (closing the background processes).
  • πŸ“Š Collection of statistics on the operation of the battery for the analysis of its wear.

But there are two key points here:

  1. The official version (if any) could be part of the test builds MIUI for internal use by Xiaomi, such as engineering samples or devices participating in beta testing.
  2. Unofficial (fake) versions are distributed through third-party sources and are often disguised as system utilities to prevent users from removing them.

The problem is that Xiaomi has never publicly announced Power Detector as part of its software, which means that on 99% of devices, the program does not get through official channels, either through pre-installed apps from regional distributors, or through malicious programs. APK.

πŸ“Š How did you get the power detector on Xiaomi?
I've already bought a phone.
I've installed it myself from Play Market.
Downloaded from a third-party site
I don't know, I noticed by accident.

How does Power Detector get to Xiaomi?

There are a few scenarios that this app might end up on your device, and let's take a look at them in detail:

Method of installationProbability.Danger.How to check
Pre-installed by the manufacturer (regional firmware)MediumLow (if it is the original version)Check the folder. /system/priv-app/ available PowerDetector.apk
Installed through Play Market (as an optimizer)Low.High (often fake versions)Check out the publisher on Google Play
Downloaded from a third-party site (APK-file)Tall.Critical (virus risk)Check the hash of the file on VirusTotal
Installed by another software (bundling)Tall.Medium (depending on the source)Analyze the application installation logs

The most common case is regional firmware, and some distributors, especially in Asia, are adding to the firmware. MIUI own apps, including Power Detector, to collect statistics or advertising, which are usually not malicious, but are of little use.

It's much worse if the program was installed from an unknown source, and then it can:

  • πŸ•΅οΈβ€β™‚οΈ Collect data about your device (IMEI, model, OS version).
  • πŸ“± Show hidden ads or redirect to phishing sites.
  • πŸ”„ Replace system settings (e.g. limiting battery power).

πŸ’‘

To check the source of the Power Detector installation, go to Settings β†’ Annexes β†’ Application management β†’ Power Detector β†’ Additionally. β†’ If it doesn't say Google Play, it's a good idea to be wary.

Power Detector: Myths and Reality

If you believe the descriptions on the web, Power Detector should be a useful tool for extending the life of the battery, but in practice, it's not so rosy.

1. Monitoring of battery status

Theoretically, the app should show:

  • πŸ”‹ Battery voltage in real time.
  • 🌑️ Battery temperature.
  • πŸ”„ Number of charging cycles.

But in most cases, these data are either irrelevant (old values are displayed) or duplicate standard functions. MIUI (For example, settings β†’ Battery β†’ Battery status).

Energy efficiency

It's said that the software shuts down the background processes to save charge.

  • ❌ She's not entitled. android.permission.KILL_BACKGROUND_PROCESSES, Therefore, it cannot be forced to close applications.
  • ❌ At best, it just duplicates the work of the Security Center (built-in optimizer). MIUI).

3. Notifications of overheating or battery wear

Some users claim that the Power Detector warns of a critical battery condition.

  • ⚠️ These notifications are often false and appear even on new phones.
  • ⚠️ They can be a way to mislead the user and force them to install other software.
Example of Power Detector code (fragment)
In decompiled APK One version of the Power Detector found the following code for "battery monitoring": BatteryManager mBatteryManager = (BatteryManager) getSystemService("battery"); int level = mBatteryManager.getIntProperty(4); // BATTERY_PROPERTY_CAPACITY Log.d("PowerDetector", "Battery health: " + level + "% (Fake value”); Please note the comment // Fake value means that the application can display false data about the state of the battery.

The Power Detector does not perform any unique functions that cannot be replaced by standard tools. MIUI or trusted third-party applications (such as AccuBattery or GSam Battery Monitor).

Is Power Detector Dangerous? Security Analysis

That's the most important question. To answer that, we've analyzed multiple versions of Power Detector using VirusTotal, APKTool, and the other two. JADX. The results were mixed:

Official (if any) version:

  • βœ… It does not contain malicious code.
  • βœ… Do not request suspicious permissions (e.g. access to the SMS geolocation).
  • ⚠️ Can collect anonymous statistics (device model, OS version) for Xiaomi.

Fake versions (distributed through third-party sources):

  • ❌ Can contain adb commands to obtain root rights.
  • ❌ Often requesting permission to READ_SMS, ACCESS_FINE_LOCATION, RECEIVE_BOOT_COMPLETED.
  • ❌ In some cases, backdoors were found for remote control of the device.

An example of a dangerous resolution from a decompiled APK:

<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />

This permission allows the application to change system settings, including disabling security or installing proxy servers.

View permissions in Settings β†’ Annexes β†’ Power Detector β†’ Permits

Check it out. APK VirusTotal (upload the file via Settings) β†’ Annexes β†’ Exports APK)

Make sure the publisher is Xiaomi Inc. (if it is the official version)

View the app reviews on Google Play (if there is one)

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⚠️ If your Power Detector requests permission to access Contacts, Messages or Geolocation, it is 100% malware. Delete it immediately and check the device with antivirus (e.g. Malwarebytes or Dr.Web).

How to remove Power Detector from Xiaomi: step-by-step instructions

If you decide to get rid of this app, here are three ways to do it depending on the type of installation:

Method 1: Standard removal (if installed as user software)

  1. Go to Settings β†’ Applications β†’ Application Management.
  2. Find the Power Detector on the list.
  3. Click Remove (if the button is active).

Method 2: Disconnect (if deletion is blocked)

If the Remove button is inactive:

  1. In the app menu, select Disable.
  2. Confirm the action (this will stop all the processes of the program).
  3. You can hide the icon through Settings β†’ Main screen screen β†’ Hide applications.

Method 3: Removal through ADB (system-application)

If Power Detector is sewn into the firmware:

  1. Install ADB Tools on your computer.
  2. Connect the phone in debugging mode (Settings) β†’ The phone. β†’ Version. MIUI β†’ 7 times press to enable the developer mode, then Settings β†’ Additionally. β†’ For developers β†’ Debugging by USB).
  3. Execute the command: adb shell pm uninstall --user 0 com.xiaomi.powerdetector (replace com.xiaomi.powerdetector with the real name of the package, which can be found through the App Inspector).

⚠️ Attention! Removing system applications through ADB It can lead to unstable work. MIUI. Before executing the command, make a backup of the data and be prepared for a possible resetting of settings.

πŸ’‘

If after removing Power Detector, the phone started to slow down or errors appear, restore the application through the command adb shell cmd package install-existing com.xiaomi.powerdetector (replace the packet name with the current one).

Power Detector Alternatives: What to Replace?

If you really need battery monitoring tools, here are proven alternatives that are safer and more functional:

AnnexFunctionsPlusesCons
AccuBatteryCharge monitoring, battery wear, charging optimizationAccurate data, no advertising in the Pro-versionFree version with restrictions
GSam Battery MonitorDetailed consumption statistics, application analysisDeep analytics, root supportA complex interface for beginners
Battery GuruTemperature, voltage, overheating notificationsSimple interface, widgetsAdvertising in the free version
Built-in MIUI toolsBattery status, energy efficiency optimizationNo installation required, secureLess detail than in specialized applications

For most users of embedded tools MIUI (Settings β†’ Battery is good enough. If you want advanced features, AccuBattery or GSam Battery Monitor is the best choice.

FAQ: Frequent questions about Power Detector

❓ Power Detector eats the battery?
If an application is actively consuming charge, it is a sign that it is running in the background. Try: Limit background activity in the application settings. Disable auto-start (Settings) β†’ Annexes β†’ Power Detector β†’ Autostart. Delete it (see the instructions above) If after removal, the battery consumption normalized, the problem was this software.
❓ Can you trust a power detector to diagnose a battery?
No. Even if it's the original version from Xiaomi, it doesn't provide accurate data. MIUI (Settings β†’ Battery β†’ Battery status: Specialized applications (AccuBattery, CPU-Z). Engineering menu (##4636## β†’ Battery information).
❓ Power Detector asks for root rights?
Absolutely not! No official Xiaomi utility requests root access to run the battery. If you see this requirement: Refuse the rights immediately. Delete the app. Check the phone for viruses. That's a sure sign that you're seeing malware.
❓ After removing the Power Detector, the phone became slower to work?
This is unlikely if you only deleted Power Detector. Possible reasons: You accidentally deleted another system application (e.g. com.miui.securitycenter) Cache failure occurred after the system files were changed. The app was part of an optimization package, and deleting it disrupted other services.Solution: Try clearing the cache in Settings β†’ Memory. β†’ Clear the cache or reset settings (Settings) β†’ The phone. β†’ Resetting settings).
❓ Is there a Power Detector on all Xiaomi smartphones?
No, this application is not standard for MIUI. It can be present on devices with regional firmware (for example, for India or China), on phones purchased from unofficial sellers who add their software, if the user installed it himself (for example, on the recommendation from the Internet). On the "pure" global or European versions MIUI This application should not be.