How to know the remaining battery capacity on Android Xiaomi: all working methods

The battery is one of the most vulnerable components of the smartphone, which degrades even when used carefully. After 1-2 years of active operation Xiaomi, Redmi or POCO, many users notice that the battery goes down 2 times faster than after buying. The reason lies in the decrease in its real capacity: if initially in the Mi 11 was a battery at 4600 mAh, then in a year its actual capacity can fall to 3,500-4000 mAh. But how exactly to find out this parameter without disassembling the phone?

In this article, we’ll look at 5 proven ways to test battery wear on Xiaomi, from built-in MIUI tools to hidden engineering menus and third-party utilities. You’ll learn what’s considered normal, how to interpret data, and what to do if capacity has fallen critically low. All methods work on models from the Redmi Note 10 to Xiaomi 14 flagships, including Android 12-14 devices.

The easiest way is to use the standard MIUI section, which shows basic battery information, but it is not available on all models and firmware versions.

To open it up:

📱 Go to Settings. → Battery and productivity → Battery status.
🔍 On some devices, the path may be different: Settings → The phone. → Battery status.
📊 Here you will see the current capacity in mAh and the percentage of wear (if supported).

⚠️ Note: Many Xiaomi smartphones have this section hidden or only show temperature and voltage.If you don't have Battery Status, go to the next method.

📊 How often do you check the health of your battery?

Once a month

Only when I notice problems

Never checked.

After each major update

The hidden engineering menu ##4636## is available on most Xiaomi devices and allows you to get advanced data about the battery, including real capacity and wear level.

Instructions:

Open the Phone app and enter the combination ##4636##.
In the menu that appears, select Battery Information.
Note the lines: Level is current charge as a percentage; Health is battery health (e.g. Good or digital); Capacity is actual capacity in mAh (if displayed).

🔹 Important: On some firmware MIUI The Health field can show Unknown. Try alternative methods.

Enter the code without spaces and symbols|Try using Google’s Phone app instead of Google’s MIUI|Reboot your smartphone and re-enter|Update the firmware to the latest version-->

3. Checking through ADB (for advanced users)

If standard methods don't work, you can use Android Debug Bridge (ADB), a debugging tool that gives you accurate data about the battery, which requires you to connect to a PC, but gives you the most reliable results.

Step-by-step:

Download and install Google’s Platform Tools.
Enable USB Debugging on your smartphone: Settings → About Phone → MIUI version (click 7 times to activate Developer Mode), then Settings → Additional → Developers → Debugging over USB.
Connect your phone to your PC and open the command line in the adb.exe folder.
Enter the command: adb shell dumpsy battery
In the conclusion, find the lines: charge counter - current charge in μA·h (divided by 1000 to get mA·h). capacity - percentage of charge. health - battery state (for example, 2 means "good").

📌 Critical information: If in conclusion ADB You see health: 7, which means that the battery needs to be replaced — its capacity has dropped below 60% of its face value.

Decoding Health Values in ADB

4. Third-party applications for battery diagnostics

If you don't want to mess with codes or ADB, you can use specialized utilities.

Annex	Functions	precision	Reference
AccuBattery	Shows wear, temperature, discharge speed	Tall.	Google Play
Battery Guru	Capacity monitoring, forecast of operating time	Medium	Google Play
AIDA64	Full battery information, including technology (Li-Po/Li-Ion)	Tall.	Google Play

⚠️ Note: Apps like AccuBattery require multiple charge/discharge cycles to accurately calculate capacity!

💡

For maximum accuracy before using AccuBattery, fully discharge the smartphone before turning off, then charge to 100% without interruption. Repeat the cycle 2-3 times.

5. Hardware check through a tester (for service centers)

If you need 100% accurate data, you can contact a service center, where the battery capacity is measured using professional equipment — USB-Tester or multimeter, this method is used in warranty repairs or before replacing the battery.

How's the check going?

🔌 The battery is removed from the phone and connected to the tester.
📉 The device discharges it with a controlled current and measures the real capacity.
📊 Results are compared with passport data (for example, 5000 mAh in the Redmi Note 12 Pro).+).

💡 The cost of such diagnostics in official Xiaomi services is usually 300-500 rubles. If the capacity fell below 70% of the face value, the master will recommend a replacement.

Table: Standards of battery wear on Xiaomi

To understand how critical your battery wear is, compare the numbers with this table:

Residual container	Level of wear and tear	Recommendations
90–100%	Excellent condition.	Keep using, keep track of the temperature.
80–89%	Light wear and tear.	Limit fast charging, avoid overheating
70–79%	Average wear and tear	Consider a replacement within 6-12 months
60–69%	Strong wear and tear	Replacement is recommended, the battery is discharged quickly
Below 60%	Critical wear and tear	Urgent replacement is needed, sudden shutdowns are possible

💡

If your Xiaomi smartphone shuts down at 20 to 30 percent charge, it’s a sure sign that the actual battery capacity has dropped below 60 percent of its face value.

What to do if the battery capacity has fallen?

If your test shows that your battery is 30 percent or more worn out, consider the following steps:

🔄 Battery calibration: Completely discharge the phone before it turns off, then charge to 100% without interruption. Repeat 2 to 3 times. This can temporarily improve performance.
🛠️ Replacement of the battery: Official service centers Xiaomi use the original battery with a guarantee of 6 months. the cost for Redmi — from 1500 rubles, for flagships — 2500-4000 rubles.
⚡ Charging optimization: Turn off fast charging in settings (Settings) → Battery → Fast charging, avoid charging to 100% (optimum 80%).
🌡️ Temperature control: Do not use your phone when charging for games or videos – it accelerates degradation.

⚠️ Note: When replacing the battery on Xiaomi new models (for example, Xiaomi) 13T or Redmi K60) You need to flash the power controller through the Mi Flash, otherwise the phone will not display the charge level correctly.

FAQ: Frequent questions about Xiaomi battery wear

Can I reset the battery wear meter on Xiaomi?

No, the wear meter is a hardware parameter that's stored in the battery controller. It can't be reset software. If the service offers "wear reset," it's a fraud. The only way to get back to baseline is to replace the battery.

Why does MIUI show 100% capacity and the phone dies fast?

This is because MIUI can reset calibration data, but the actual capacity is low, so try calibrating the battery (discharge to 0% and charge to 100% without interruption), or checking the capacity through ADB.

How often should I check the battery health?

If you notice that the phone has become faster to discharge (for example, the Redmi Note 11 held a day, and now half), check the capacity immediately.

Does wireless charging affect Xiaomi’s battery wear?

Yes, wireless charging (Qi) heats the battery more than wired charging, which accelerates degradation, and if you use it regularly, keep your temperature on track and avoid charging to the fullest.

Can I use a battery with a capacity of 70% of the nominal value?

Technically, yes, but battery life will be reduced by 30-40%, for example, if the POCO X5 Pro used to last 1.5 days, it will now run out in 8-10 hours, and the risk of sudden shutdown with low charge also increases.