How to see the battery level on Xiaomi Redmi: all the ways from simple to hidden

Ever wondered why your Xiaomi Redmi can be hard to understand your actual battery life? Official percentages don’t always reflect your battery life — especially if your phone has been in use for several years. In this article, we’ll look at not only standard charging methods, but also hidden MIUI features that can help you get accurate data on battery health, voltage, and even temperature.

Redmi smartphones (Redmi Note 8 Pro to Redmi 13C) have unique features for displaying battery information. For example, some models have a hidden engineering menu, and new versions of MIUI 14/15 have additional widgets, and we will show you how to use these tools without risk to the system - and what to do if the percentage of charge "lies" or jumps.

Importantly, if your Redmi quickly discharges or shuts down at 20-30% charge, the problem may not be the software, but the physical wear of the battery. At the end of the article, you will find a list of signs of a “dying” battery and tips for calibrating it.

1. Standard method: notification panel and battery widget

The most obvious method is to look at the battery icon in the upper right corner of the screen, but even here, there are nuances.

• 🔋 On Redmi with AMOLED-screens (e.g. Redmi) K50 Or the Redmi Note 12 Pro.+) The icon is always displayed, even on a locked screen.
• ⚡ In the models with IPS-displays (e.g., Redmi) 10A) The percentage of charge may not show on the locked screen - this is the setting of energy saving.
• ⚙️ To enable the percentage display inside the icon: go to Settings → Notifications → Status panel and activate the option to Show battery percentage.

If the battery icon is gone or shows incorrect data, try:

1. Reboot your phone (hold the power button for 10 seconds).
2. Update MIUI to the latest version (in Settings → About Phone → System Update).
3. Reset the notification panel settings: Settings → Applications → Application Management → Three dots (menu) → Reset settings.

The battery widget on the home screen is another way to monitor it.

1. Press and hold the empty space on the main screen.
2. Select Widgets → Find Battery or Tools.
3. Drag the widget to the screen (e.g., Battery Status or Energy Consumption).

⚠️ Warning: Some firmwares can display battery widgets with a delay of up to 5 minutes. This is normal – the system updates data not in real time, but at intervals.

2. Battery section in settings: hidden metrics

Settings menu → There's a lot more data hiding in the battery than just the percentage of charge:

• 📊 Consumption schedule for the last 24 hours (click on the chart to expand).
• ⏳ Remaining work time (approximate, current load).
• 🔌 Charging history – how long the phone has been connected to the network (useful for diagnosing slow charging).
• 📉 List of applications that consume the most energy (sorting by descending).

To get an extended statistic:

1. Open the Settings. → Battery.
2. Click on the three dots in the upper right corner → Battery use.
3. Select the period: Last charge or Last 7 days.

In this section, pay attention to:

• 🔍 Background consumption – if an application eats more than 10% of the charge in the background, it should be limited.
• 🛑 Unusual jumps in the chart – may indicate wake-ups of the processor (wakelocks).

Application activity in the background | Battery temperature (should be <40°C) | Screen time vs sleep time |Should be unexpected peaks in consumption-->

On MIUI 14+ models, this section includes Battery Health, which shows the actual battery capacity per mAh compared to the factory, and if it's below 80%, it's time to change the battery.

3. Engineering menu: data directly from the battery controller

If standard methods don't work, you can get raw data from the battery controller through the engineering menu, which is suitable for advanced users, because it requires input. USSD-code.

Instructions for Redmi:

1. Open the phone (calling) application.
2. Enter the code ##4636##
3. Select Battery Information (Battery Information).

On this menu you will see:

⚠️ Warning: If the voltage is below 3400 mV at 10-20% charge, the battery is severely worn out.°C when charging - a sign of a faulty controller or cable.

On some models (Redmi Note 11 and later), the engineering menu can be blocked, and the alternative is to use apps like AccuBattery (available on Google Play) that read the same data but with a more user-friendly interface.

4. Monitoring applications: AccuBattery, GSam and others

Third-party apps allow you not only to watch the current charge, but also analyze the battery health, charging/discharge rate and even predict battery life.

• 📊 AccuBattery - shows the real battery capacity, discharge rate in mA, history of charging cycles. Supports Russian.
• ⚡ GSam Battery Monitor – detailed statistics on the consumption of each application (requires root for full functionality).
• 🔋 Battery Guru – monitors temperature, voltage and offers tips for optimization.
• 🛠️ CPU Monitor – helps to identify applications that “wake up” the processor and drain the battery.

How to use AccuBattery:

1. Download the app from Google Play.
2. Go through the initial setup (specify the battery capacity of your Redmi model).
3. Charge the phone to 100% and discharge to 0% – this calibrates the sensors.
4. In the Health section, you will see real capacity in mAh and wear in %.

Example of data from AccuBattery for Redmi Note 10 Pro after a year of use:

• Declared capacity: 5020 mAh.
• Real capacity: 4100 mAh (wear ~18%).
• Standby discharge rate: ~2%/hour.

💡

If AccuBattery shows battery wear of more than 30%, but the phone keeps the charge normally - try resetting the statistics of the application and recalibrate the battery (discharge before turning off, then charge to 100% without interruptions).

5. USSD-battery-diagnostic

In addition to the engineering menu, Xiaomi Redmi has special features. USSD-They don't require any application installation, and they work even without the Internet.

List of useful codes:

How to enter codes:

1. Open the standard phone application.
2. Enter the code as a phone number (without spaces).
3. Press the call button and the menu will open automatically.

⚠️ Warning: Don't enter random codes from the internet! some combinations (e.g. ##7780##) can reset your phone to factory settings.

6.Battery calibration: When percentages "lie"

If your Redmi suddenly turns off at 20 to 30 percent charge, or after charging, it shows 100 percent but discharges quickly, the problem is desynchronizing the battery controller.

Step-by-step:

1. Discharge your phone before you turn it off (use it actively until it shuts down).
2. Charge up to 100% without interruptions (use the original Xiaomi cable and power supply).
3. After reaching 100%, don’t turn off charging for another 1-2 hours (yes, that’s important!).
4. Turn off charging and reset battery statistics: Settings → Battery → Three points → Reset statistics
5. Repeat the discharge / charge cycle 2-3 times.

If the calibration didn't help:

• 🔧 Check the physical condition of the battery (swelling, deformation).
• 🔄 Update. MIUI up to the latest version (sometimes battery bugs are fixed in firmware).
• 🛠️ Contact the service – you may need to replace the battery or controller.

💡

Calibration only helps with software failures, and if the battery is physically worn out (capacity below 60% of the factory capacity), it needs to be changed.

7.Signs of a "dying" battery on Xiaomi Redmi

How do you know if your Redmi battery needs to be replaced?

• 🔋 The phone discharges by 20-30% per hour in standby mode (without active use).
• ⚡ Charging is very slow (for example, in 2 hours only 50%) or stops at 80-90%.
• 🌡️ The phone gets very hot when charging or during calls.
• 📉 The percentage of charge "jumps" (for example, from 50% immediately to 20%).
• 💥 The body swelled (seen by the gaps between the screen and the frame).
• ⏳ Battery life has been reduced by 2-3 times compared to the new phone.

If you see at least 2-3 signs from the list, it’s time to change the battery. The average battery life in Xiaomi Redmi is 2-3 years (or 500-800 charge cycles).

Cost of battery replacement in service centers:

Tip: When replacing a battery, always ask for the original one (with the Xiaomi logo and hologram). Analogs often have a smaller capacity and fail faster.

FAQ: Frequent questions about Xiaomi Redmi battery