How to check the battery on Xiaomi Redmi: from condition to wear

The battery is one of the most vulnerable components of the Xiaomi Redmi smartphone, which eventually loses capacity and needs to be replaced. If your device becomes more quickly discharged, overheated or suddenly shut down at 20-30% charge, it’s time to diagnose the battery. In this article, you will find 5 proven ways to look at the status of the battery on Redmi – from built-in MIUI tools to hidden engineering menus and third-party applications.

We're not just going to look at basic methods like Settings. → Battery, but also advanced – using codes USSD, ADB-We'll focus on deciphering the key parameters: charging cycles, current capacity and battery temperature, and then we'll end with practical tips on how to extend the life of the battery and when to change it.

1. Checking the battery through standard MIUI settings

The easiest way to assess battery status is to use the built-in MIUI tools. These are available on all Xiaomi Redmi models (from Redmi 4X to Redmi Note 13 Pro+) and do not require root rights or additional applications.

Open the settings → Battery. Here you will see:

• 📊 Consumption chart – shows which applications are using up charge in the background.
• ⚡ Remaining operating time – rough estimate based on current expenditure (not always accurate!).
• 🔋 Battery status – on some models, displayed as “Good”, “Mediocre” or “Bad».

However, standard settings do not show actual wear (in percentage) or current capacity in mAh.

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If there is no status information in the Battery section, upgrade MIUI to the latest version. In older firmware (before MIUI 12), this feature may not be available.

2 Hidden codes for battery diagnostics

Smartphone makers, including Xiaomi, hide engineering menus that allow detailed information about the battery. USSD-codes or combinations in the "Phone" application».

Enter one of the codes in the dialer:

• 🔢 ##4636## - Universal Testing Menu (works on most Android devices) Go to the Battery Information tab.
• 🔢 ##6484## - Battery testing menu (on some models, Redmi may not work).
• 🔢 ##64663## - Alternative code for checking battery and sensors.

In the menu that opens, pay attention to:

• 📏 Level - current charge in percentage.
• 🌡️ Temperature - battery temperature (normal: 25-40)°C).
• ⚡ Voltage - voltage (should be in the range of 3.7-4.4 V).
• 🔄 Health – condition if any; Xiaomi is often absent).

Not all codes work on newer Redmi models (like the Redmi Note 12 or Redmi K60).If nothing happens after you enter the code, try another one or use the methods in the following sections.

3. Applications for deep battery diagnostics

If the built-in tools and codes don't give you the full picture, install one of the specialized applications that shows real wear, the number of charging cycles, and even predict the remaining life.

The best applications for Xiaomi Redmi:

AccuBattery is the most popular solution.

1. Open the app and wait for the first charge to 100%.
2. Go to the Health tab.
3. Pay attention to the parameter Capacity Assessment - it will show the real capacity in mAh and the percentage of wear.

The critical wear value is 60 percent or higher, and at this rate, the battery holds a charge less than half of its stated time, and it is recommended to replace it.

4. Check through ADB (for advanced users)

If you’re ready to dive into the technical details, ADB (Android Debug Bridge) will allow you to get data directly from the system, a method that works for all Redmi models, but requires a computer and minimal command-line skills.

Instructions:

1. Turn on Developer Mode on your smartphone: go to Settings → About Phone and 7 times click on the MIUI version.
2. Return to Settings → Additional → For developers and activate Debugging over USB.
3. Connect Redmi to the PC, install it ADB-Drivers and open the command line.
4. Enter the command: adb shell dumpsy battery

In the conclusion, find the lines:

• Level is the current charge.
• Voltage is voltage.
• Temperature: Temperature (in tenths of a degree Celsius, for example, 295 = 29.5°C).
• health – state (may be GOOD, OVERHEAT, DEAD, etc.).

Install drivers ADB PC-only|Enable debugging on USB on the Redmi|Connect your phone to the original cable|Check the connection with the adb device command-->

This method does not show wear in percentages, but it gives accurate technical data that can be compared with the passport values of your Redmi model.

5. Visual diagnosis and physical examination

Sometimes the battery problem is visible to the naked eye, and if the battery is swelling, it's dangerous, it needs to be replaced urgently.

• 📱 The screen or back cover of Redmi began to bulge».
• 🔌 The charging cable is poorly inserted into the connector (due to deformation of the body).
• 💥 The phone spontaneously restarts or turns off.

To inspect the battery:

1. Turn off your smartphone.
2. Remove the back cover (on removable battery models, such as Redmi 3S or Redmi 4A).
3. Examine the battery for swelling, corrosion, or leakage of the electrolyte.

⚠️ If the battery is swelling, don't try to puncture or squeeze it - it can cause a fire.Take the phone to Xiaomi's service center or replace the battery yourself (if you have experience).

On models with a non-removable battery (for example, the Redmi Note 10 Pro or Redmi K50) you will need to disassemble the case for inspection.

6.When is it time to change the battery to Xiaomi Redmi?

Even if the battery looks normal, its life is limited, and here are the key signs that it's time to think about replacing it:

The average battery life of Xiaomi Redmi is 2-3 years (or 500-800 charge cycles).If your smartphone is older, check the battery with one of the methods described above.

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Original batteries for Redmi can be bought in official service centers Xiaomi or on sites like AliExpress (look for sellers with high ratings and reviews).

FAQ: Frequent questions about Xiaomi Redmi battery