How to check whether Xiaomi wireless headphones are charged: all ways

Xiaomi's wireless headphones are some of the most popular gadgets, thanks to their combination of price, sound quality and functionality. But even for experienced users, the question sometimes arises: how do you know if your headphones are fully charged? Especially if you're talking about models with minimalist designs that don't have bright indicators or beeps.

In this article, we’ll look at all the different ways you can check your charging, from standard (LEDs, sounds) to hidden (Mi Home, test commands), how different the indicators are from different models (AirDots, Buds, FlipBuds), what to do if your headphones don’t show charging, and how to avoid typical charging errors, and a unique method of checking through an engineering menu that isn’t written about in the official instructions.

1. Standard charging indicators: what flashing lights mean

Most Xiaomi wireless headphones are equipped with LED indicators that signal the charging status, but their behavior depends on the model and version of the firmware.

• 🔴 Red lights - charging is coming, battery level is below 30%.In some models (Redmi AirDots 3) can blink at intervals of 1 time in 3 seconds.
• 🟡 Yellow/orange light – charging in the process, battery level from 30% to 80.
• 🟢 Green lights full charge (100%) AirDots Pro 2 burns all the time, FlipBuds Pro goes out in 10 seconds.
• ⚪ White light - occurs in models with USB-C (Like Buds. 3T Pro. Signals charging connection, but not battery level.

It is important to note that some headphones (for example, Redmi Buds 3 Lite) the indicator does not burn at all during charging - it only lights up when completely discharging or connecting to the device.

⚠️ Warning: If the indicator flashes red at a high frequency (more than 2 times per second), this may indicate a battery malfunction or problems with the contacts of the case.

2. Sound signals: what do squeaks and melodies mean

Many Xiaomi models emit audible signals when connected to a charge or reaching 100% charge, signals that are often ignored, but they can be useful if the indicator breaks or is not there.

• 🔊 Short squeak when connected - the headphones began to charge. In Buds 3 Pro models, the sound is accompanied by a voice message in Chinese (you can turn off in the settings).
• 🎵 3-note melody - Charging complete (100%) Meet in AirDots Pro 2 and FlipBuds.
• 🚨 Long signal or repeat squeak – charging error (check cable, port or contacts).

If there are no sounds at all, it could mean:

• 🔇 Sounds disabled in headphone settings (via Mi Home app).
• 🎧 Headphones are discharged “to zero” – wait 5-10 minutes, then check the again.
• 🔌 Case problems (for example, the case battery is discharged).

⚠️ Note: In Redmi Buds 3 Lite models, the charging sound may vary depending on the firmware region. If you bought headphones in China, the beeps may be in Chinese, and you can turn them off via Settings. → Sounds. → System sounds in the annex.

💡

If the headphones do not emit sounds when charging, but the indicator is on, try resetting them to the factory settings: press and hold the button on the case for 15 seconds (until the red and white flash).

3. Check charging through the Mi Home app

The most reliable way to know the exact charge level is to use the official Mi Home app (or Xiaomi Wear for new models), which shows the percentage of charging each earphone and case separately, as well as the time to fully charge.

Instructions for verification:

1. Open the Mi Home app and connect the headphones to your phone via Bluetooth.
2. Go to the Devices → Headphones (icon of your model).
3. On the main screen will display the charge level of the case and each headphone separately.
4. For detailed information, click on the battery icon – there will be a charging schedule and battery temperature.

If the application does not show charging:

• 📱 Update Mi Home to the latest version (Google Play or App Store).
• 🔄 Reconnect the headphones: forget the device in Bluetooth settings, then connect again.
• 🔧 Reset the headphones to factory settings (instructions in the previous section).

Update the application to the latest version|

Reconnect the headphones via Bluetooth|

Reset your headphones to factory settings|

Check the case connection to charging (the indicator should burn)|

Reboot your smartphone-->

In some models (like the FlipBuds Pro), the app also shows residual running time at your current charge level, which is useful if you're planning a long trip or training session.

4. Hidden methods: engineering menu and test commands

If standard methods don't work, you can use hidden features that the manufacturer doesn't advertise, which are suitable for power users and require caution.

Method 1: Engineering menu (for models on a Qualcomm chip)

Some Xiaomi headphones (such as AirDots Pro 2) are built on the basis of Qualcomm chips and support access to the engineering menu through a sequence of taps:

1. Put the headphones in the case and close the lid.
2. Press and hold the button on the case for 5 seconds (until the indicator flashes).
3. Press the button 3 times at intervals of 1 second.
4. The indicator will flash blue and red – this is a signal to enter the test mode.
5. Connect your headphones to your phone and open a testing app (like nRF Connect for Android).

Method 2: AT commands (for advanced users)

If you have a Bluetooth terminal (such as Serial Bluetooth Terminal), you can send a test command to your headphones to check battery status:

AT+BATT?


AT+CHARGESTATUS?

The data will be in the following format:

BATT:L=95,R=98,CASE=100


CHARGE:COMPLETE

Where L is the left earpiece, R is the right earpiece, CASE is the case.

⚠️ Note: Incorrect use of the engineering menu or AT-The commands can cause you to reset your settings or even damage your firmware. Don't experiment unless you're sure you're doing it!

5. How to check charging without indicators and applications

If the indicator is broken, the application does not work and there are no sounds, alternative methods remain:

• ⏱️ Charging time: Standard charging from 0 to 100% takes 1.5-2 hours (for most models); fast charging (for example, in Buds 3 Pro) – up to 50% in 15 minutes. If the case supports wireless charging, the time increases by 20-30%.
• 🔋 Discharge test: Charge your headphones fully (in time) and turn the music on at maximum volume and record the running time. If the headphones have been running for 4-5 hours (for most models), then the charge was full.
• 🔌 Multimeter (for technically savvy): Measure the voltage on the case contacts (should be 4.2-4.3 V when fully charged). For headphones, the normal voltage is 3.7-3.8 V.

If none of the methods worked, the problem may be:

• 🔌 Cable or adapter – try another charger (preferably original) 5V/1A).
• 🔋 Case battery – if the case is not charged, headphones will not be either.
• 🎧 Contact headphones - clean them with a soft brush or cotton swab.

💡

If the headphones don't charge for more than a day and the indicator doesn't burn, the power controller is likely to have failed, in which case only repairs at the service center will help.

6.Typical charging errors and how to avoid them

Many users make mistakes that cause battery charging to be incorrect or even damaged, and here are the most common:

• 🔥 Using “fast” charging from smartphones: Chargers with power 18W+ (For example, from Xiaomi 11T) They can overheat the case. Use the chargers. 5V/1A or 5V/2A.
• ❄️ Charging in the cold: If headphones brought from the street in winter, wait 10-15 minutes before charging.Li-Po batteries don't tolerate low temperatures.
• 🔄 Continuous charging connection: Don’t leave your headphones on charge for more than 24 hours – this shortens battery life.
• 🔌 Use of non-original cables: Cheap cables may not provide stable voltage, leading to undercharging or overcharging.

To extend the life of the battery:

• 🔋 Once a month, discharge the headphones to zero, then charge to 100.
• 🌡️ Avoid charging at temperatures above 35°C (for example, in the sun or near a heater).
• 🔌 Use only original cables or certified cables. USB-C/Micro-USB (model-wise).

7. Frequent questions about charging Xiaomi headphones