How to check the battery temperature on your Xiaomi phone: hidden codes, apps and MIUI-chips

Battery temperature is a key indicator of smartphone health, but Xiaomi doesn’t always display it in the standard interface. Battery overheating speeds up wear, can cause sudden shutdowns or even damage to internal components, a problem that is especially relevant for fast-charging devices (33W/67W/120W) or gaming smartphones Black Shark and POCO F series, where battery load is above average.

In this article you will find 5 Proven ways to know the battery temperature on any Xiaomi, Redmi or POCO — We're also going to look at what's normal and what's worth sounding the alarm, and what to do if the phone is warming for no apparent reason. MIUI 12/13/14 HyperOS.

The fastest way is to use the Android engineering menu, which is available on all Xiaomi smartphones without root rights, which works even on locked devices and does not require the installation of additional programs.

To open the menu:

Open the Phone app.
Enter the combination: ##4636## (some models may require you to press the call button).
In the window that appears, select Battery Information.

Here you'll see:

🔋 Level of charge (level) - current percentage.
🌡️ Temperature - in degrees Celsius (sometimes displayed in ×0.1°C, for example, 325 = 32.5°C).
⚡ Voltage – should be within 3.7–4.4V.
🔄 Health – If Good is indicated, the battery is fine.

💡

If the menu does not open, try entering the code through the Calculator app: dial 4636, then press = and hold the result for a few seconds.

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) POCO X3 Pro) the engineering menu may be blocked by the manufacturer, in which case use alternative methods from the following sections.

2.Security application – built-in monitoring

MIUI firmware has a built-in temperature control tool, but it is hidden in the system optimization menu, a method that is suitable for most devices, including the Xiaomi 11/12/13 series, Redmi Note 9/10/11 and POCO F3/F4.

Instructions:

Open the Security app (the shield icon).
Go to Optimize or Accelerate (the name may be different).
Click on the icon. ⚙️ (settings) in upper right corner.
Select Battery Temperature or Battery Status.

This section shows:

📊 Temperature chart for the last 24 hours.
🔥 Current temperature in degrees Celsius.
⚠️ Warnings about overheating (if the temperature exceeds 45)°C).

What to do if the menu is not on the menu?

Some firmware (e.g. HyperOS for Xiaomi 14) may not have this section, in which case update the Security app via Play Market or use the ADB method from Section 5.

If the battery temperature is consistently above 40°C, even in standby mode, this may indicate:

🔌 Faulty charging cable or adapter.
🎮 Background processes (games, torrents, mining applications).
☀️ Exposure to direct sunlight or high ambient temperature.

Third-party monitoring applications

If Xiaomi’s built-in tools don’t show temperature or you want to get advanced statistics, use specialized utilities.We tested the top 5 apps and selected the most accurate and safe.

Annex	precision	Additional functions	Root rights
AccuBattery	⭐⭐⭐⭐⭐	Discharge schedules, battery health, charging time	❌ No, he doesn't.
CPU Monitor	⭐⭐⭐⭐	Processor temperature, GPU, battery	❌ No, he doesn't.
Battery Guru	⭐⭐⭐⭐	Overheating Notices, Savings Tips	❌ No, he doesn't.
AIDA64	⭐⭐⭐⭐⭐	Complete iron diagnosis, performance tests	✅ Requires for Advanced Data
3C Battery Monitor	⭐⭐⭐⭐⭐	Detailed statistics on current, voltage, temperature	✅ Requires accurate data

We recommend AccuBattery for most users: it is free, does not require root rights and shows the temperature in real time right in the notification bar.

Open AccuBattery and go to Settings.
Select Notifications → Temperature.
Set a threshold value (for example, 40°C).
Enable the option to display notification.

📊 What app do you use to monitor your battery?

AccuBattery

AIDA64

CPU Monitor

I don't use it.

Other

⚠️ Attention: Apps like AIDA64 or 3C Battery Monitor can show inaccurate data without root rights if the temperature in the application and the engineering menu differs by more than 5°C, trust the built-in tools MIUI.

4. ADB commands for advanced users

If you’re ready to work with Android Debug Bridge (ADB), you can get your battery temperature data directly from your phone’s sensors, a method that’s suitable for Xiaomi-based diagnostics with custom firmware or for automating monitoring.

What you need:

🖥️ Computer with installed ADB-driver.
📱 Included Debugging by USB on the phone (Settings) → The phone. → Version. MIUI → 7 times press to unlock the developer mode).
🔌 USB-cable (preferably original).

Instructions:

Connect the phone to the PC and confirm the debugging permission.
Open the Command Prompt (Windows) or Terminal (macOS/Linux).
Enter the command to check the connection: Adb devices must appear serial number of your device.
Execute the command to obtain temperature: adb shell dumpsys battery

In the conclusion, find the line:

temperature: 340

This value is in ×0.1°C – divide by 10 to get degrees (in example: 34.0°C).

Install ADB-Drivers (Platform Tools)

Enable debugging over USB on your phone

Connect the original USB-cable

Check the connection of the adb device team-->

For continuous monitoring, use the command:

adb shell "while true; do echo -n `date +%H:%M:%S`; dumpsys battery | grep temperature; sleep 5; done"

It will display the temperature every 5 seconds along with the time.

5. Hidden codes for specific Xiaomi models

Some Xiaomi devices have unique engineering codes that open up extended diagnostic menus, and these codes may vary depending on the model and the firmware region.

Popular codes for temperature checks:

📱 ##36446337## — Test equipment (works on Redmi Note) 8/9/10).
🔋 ##4636## - Standard Engineering Menu (see Section 1).
🌡️ ##2846579## → ProjectMenu → Background setting → Battery log setting (for the first time) POCO F1/F2).
📊 ##232338## - Wi-Fi and battery test (on some Xiaomi Mi A series).

For example, on Xiaomi Mi 11 or Redmi K40 you can use:

Enter ##36446337##.
Select Battery Information.
Scroll to the Temperature block.

What if the code doesn't work?

If nothing happens after you enter the code: 1. Check that you type * and # correctly (without spaces). 2. Try typing the code in the Calculator app (enter numbers, then press = and hold the result). 3. Update the firmware - some codes stop working after the MIUI updates.

⚠️ Warning: Do not enter random engineering codes - this can cause resets or software damage. Use only verified combinations from official sources.

6. Normal and critical temperature values

Knowing the current battery temperature is useless without understanding which values are considered safe and which are alarming. Below is a table with recommendations for Xiaomi smartphones:

Temperature.	Status.	What do you do?
20–30°C	🟢 Perfect.	Optimal mode for long battery life.
30–35°C	🟡 Normal.	Allowed when charging or loading (games, video).
35–40°C	🟠 Elevated	You should reduce the load, remove the cover.
40–45°C	🔴 Critical	Stop using, let the phone cool down.
>45°C	❌ Dangerous.	Turn off the device immediately! Risk of battery damage.

Temperatures above 50°C can cause permanent battery damage or even bloating. If your Xiaomi regularly heats up to such values, check:

🔌 Charger – Use only original Quick Charge adapters.
🎮 Apps - Games (Genshin Impact, PUBG) or mining software can overload the processor.
☀️ Operating conditions – do not leave your phone in direct sunlight or in a closed car.
🔄 Updates – Outdated firmware may contain power management errors.

💡

If the battery temperature is above 45°C, stop using the phone immediately and let it cool in the shade.Repeated overheating reduces battery life by 30-50%.

7.What to do if the phone overheats

If you find that your Xiaomi battery temperature is consistently above normal, follow this algorithm:

Eliminate external causes: 🌞 Move your phone to a cool place. 📴 Remove the cover (especially if it is thick or metallic). ⚡ Turn off the charger and let cool for 15-20 minutes.
Check background processes: 🛑 Close all applications through the recent. 🔍 Open the Settings. → Annexes → Launched and Suspend Suspicious Processes.
Diagnose hardware problems: 🔌 Try another charger. 🔋 Check the battery for bloating (put the phone on a flat surface - if it sways, the battery is deformed).
Update the PO: 🔄 Go to Settings. → The phone. → Updating the system. 📥 Install the latest security patches.
Reset your settings (if nothing helps): ⚠️ Make a backup copy of the data. 🔄 Perform reset through Settings → Additionally. → Recovery and discharge.

If the overheating continues even after these actions, contact the Xiaomi service center.

🔋 Failed battery (requires replacement).
🖥️ Damage to the motherboard or power controller.
🔌 Short circuit in the charging connector.

💡

To quickly cool your phone in an emergency, turn it off and put it on a metal surface (like an aluminum stand).Do not use the refrigerator - condensation can damage electronics!

FAQ: Frequent questions about Xiaomi battery temperature

❓ Why does your phone warm up when charging?

This is normal if the temperature does not exceed 35-40 ° C. When fast charging (33W+), the heating is increased: Using the phone while charging (games, video); Non-original cable or adapter; Charging in a hot room; To reduce heat, charge the phone in air mode or off.

❓ What temperature is dangerous for the battery?

Critical values: >45°C is the risk of battery damage. >50°C is the possibility of deformation or leakage of the electrolyte. >60°C is the risk of fire (very rare, but possible). At temperatures above 40°C, Xiaomi automatically limits performance to protect the battery.

❓ Can I use my phone at high temperature?

Short term use (e.g., call) is acceptable, but: 🚫 Avoid video games or games, which will increase heat. 🔌 Do not charge your phone until it is cooled. ☀️ Do not leave the device in the sun or in the car. >40°C reduces battery life by 20-30%.

❓ Why the temperature falls below 20°C?

It could be happening: ❄️ When using the phone in the cold (below 0)°C). 🔋 Battery discharge up to 10% or lower. 📱 On some models (Xiaomi) 12T, Redmi K50) If the phone turns off in the cold, warm it in your hands or pocket before turning on.

❓ How to check the battery temperature on a phone that is turned off?

Without root rights or special equipment, that's impossible: 🔌 Connect your phone to charge and check the temperature in 10-15 minutes (if it turns on). 🛠️ Use it. USB-Thermometer (connects to the port and measures the temperature of the case) If the phone does not turn on due to overheating, let it cool for 30 to 60 minutes.