How to see battery wear on Xiaomi Redmi: all ways

Why it is important to monitor the health of the smartphone battery

The Li-ion batteries in Xiaomi Redmi smartphones are consumables with a limited lifespan. Even with careful use, the battery capacity gradually decreases: after 300-500 charging cycles, you may notice that the phone discharges 20-30% faster than after purchase, the reason lies in the chemical processes inside the cell: over time, the electrolyte degrades, and the anode loses the ability to hold lithium ions.

The problem is compounded if you actively use fast charging, often discharge your phone “to zero” or leave it in the sun. Manufacturers (including Xiaomi) do not usually advertise real battery wear in standard settings, but this information can be obtained through hidden tools or third-party utilities.

In this article, we’ll look at 5 proven ways to test battery wear on Redmi, from simple (via phone menus) to advanced (using ADB), and learn what are considered critical, and what to do if the capacity has dropped below 70%.

Method 1: Check through hidden engineering menu (#4636##)

The fastest method is to use the built-in engineering menu that is on all Xiaomi Redmi smartphones (including Note 10/11/12, Redmi 9/10/13C and others) and does not require root rights or additional applications, but shows basic information about the battery.

To open the menu:

1. Open the Phone app.
2. Enter the combination: ##4636### (some firmware may not work – see alternatives below).
3. Select Battery Information (Battery Information).

In this menu, pay attention to two key parameters:

• 🔋 Level of charge (level) – current percentage in numbers (may differ from the indicator in the statusbar).
• 📊 Battery Health – Good (good), Unknown (unknown) or percent of wear (e.g. 85) may be listed here%).
• ⚡ Technology: Li-ion or Li-poly.

⚠️ Attention: On new versions MIUI 14+ If the menu doesn't open, try the alternative code: ##2846579## → ProjectMenu → Background setting → Battery Log.

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If the engineering menu doesn’t open, check if it’s disabled in the developer settings. Go to Settings → About Phone → MIUI version and tap it 7 times to activate the developer mode.

Method 2: Use of the AccuBattery application (most accurate method)

AccuBattery (available on Google Play) is the gold standard for battery diagnostics, not only showing current wear, but also analyzing real capacity, discharging speed, and even predicting the remaining battery life, and is suitable for all Redmi models, including the Redmi Note 12 Pro+ and Redmi 13C.

How to use:

1. Download and install AccuBattery (free version with advertising).
2. Charge the phone to 100% and connect to charging for another 15-20 minutes (to reset the charge control meter).
3. Open the app and go to the Health tab.

After 2-3 cycles of charging / discharging AccuBattery will show:

• 📉 Estimated capacity (e.g. 3800 mAh instead of the stated 5000 mAh).
• 🔄 Number of charging cycles (the more, the stronger the wear).
• ⚡ Depreciation rate (percentage of capacity loss per month).
• 🔋 Health assessment (from excellent to critical).

Charge the phone to 100% and hold on charging 15 minutes | Discharge to 15-20% without recharging |Repeat the cycle 2-3 times | Check health only after full calibration-->

Method 3: ADB commands for advanced users

If you're willing to use the Android debugging bridge (ADB), you can get the most accurate data on the battery, including real capacity, voltage and temperature, which works on all Redmis, but requires a computer and minimal technical skills.

Instructions:

1. Download ADB Tools and unpack the archive.
2. Activate Developer Mode on your phone: Settings → About Phone → MIUI version (shap 7 times).
3. Enable USB debugging in Settings → Additional → For developers.
4. Connect your phone to your PC and open the command line in the folder with ADB.

Enter the following commands in turn:

adb shell


dumpsys battery

In the conclusion, find the lines:

• Capacity: X is the current charge in percentage.
• Voltage: X is voltage (normally 3.7-4.2 V).
• temperature: X - temperature (critically above 45°C).
• charge_counter: X is the real capacity in mkAh (divided by 1000, to get a mAh).

For example, if charge_counter show 3500000, The actual capacity of your battery — 3500 Compare this value with the passport capacity (for example, 5000 Mach at Redmi Note 11) and calculate the wear and tear:

(3500 / 5000) * 100 = 70% health

⚠️ Attention: Teams ADB They may differ on custom firmware (e.g. LineageOS or Pixel Experience).If dumpsys battery doesn't work, try cat. /sys/class/power_supply/battery/capacity.

Once a month |Only when I notice problems |Never checked |I don't know how to do it-->

Method 4: Through the hardware testing menu

Xiaomi Redmi smartphones have a hidden hardware diagnostics menu that is used in service centers, which allows you to test all components, including the battery.

How to open it:

1. Open the Phone app.
2. Enter the code: ##6484## or ##64663###.
3. Select Battery Test or Battery Test.

On this menu you will see:

• 🔋 Type of battery (e.g, HB41 For the Redmi Note 10 Pro).
• 📊 Capacity in mAh (can show both passport and real value).
• ⚡ Status (Normal, Weak or Replace).

If the Weak status or Replace status is low, it means that the battery capacity has dropped below 60-70% and it is time to change it. In some models (Redmi 9A, Redmi 8), the menu may give a Test failed error, in which case use other methods.

Method 5: Analysis with MIUI Battery Settings (for new firmware versions)

Starting with MIUI 12.5 and later, Xiaomi has added a section with advanced battery information to its standard settings, which is less accurate than AccuBattery, but does not require additional software installation.

How to find it:

1. Go to Settings → Battery and Performance.
2. Slap the icon. ⚙️ (Battery settings).
3. Select Battery Status or Battery Information.

Here you'll see:

• 📅 Date of first use (helps estimate battery age).
• 🔄 Number of full charging cycles (critically above 500).
• 🔋 Current capacity (can show both a percentage of the initial and absolute value in mAh).

Note that this menu sometimes displays a health score in the form of a graph, if the line is going down a lot, it's a sign of wear and tear, and you can see charging guidelines adapted to your Redmi model.

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If MIUI settings display a capacity below 80% of passport capacity, it is an official signal to replace the battery, which the manufacturer considers critical for the stable operation of the device.

What to do if the battery wears more than 30%?

If the diagnosis has shown that the battery health has dropped below 70-80%, there are several ways to address the problem:

1. Battery calibration

Sometimes the system misrepresents the charge level due to a controller failure, to reset the data:

1. Reduce the phone to 0% (until it turns off).
2. Connect to the original charger and charge up to 100% without interruptions.
3. Turn off and turn on the phone – repeat the procedure 2-3 times.

2. Battery replacement

If the capacity has dropped below 60%, the only reliable solution is to replace the battery.

• 💰 Redmi Note 10/11: 1 500–2 500 ₽ (work).
• 💰 Redmi 9/10: 1 200–2 000 ₽.
• 💰 Redmi 13C/12C: 1 800–2 800 ₽ (due to the complexity of disassembly).

Use only original Xiaomi-branded batteries or certified counterparts (e.g., from ZMI). Cheap fakes can swell or cause a fire!

3. Optimization of use

To slow down further wear:

• ⚡ Avoid fast charging (use standard RAM on your computer) 5W-10W).
• 🌡️ Do not leave your phone in the sun or in the car (optimum temperature: 10-35).°C).
• 🔌 Do not discharge below 20% and do not charge above 80% (use Optimized Charging mode in the scaling system). MIUI).
• 📵 Turn it off. 5G, NFC Geolocation, if not necessary.

⚠️ Warning: If the battery is swelling (the phone's body is deformed), you can't try to charge it or use the device! This can cause fire.

FAQ: Frequent questions about Xiaomi Redmi battery