Owners of Xiaomi wireless headsets often face a situation where the left or right earphone discharges faster than the other, or the case suddenly stops charging devices. This is because standard methods of indication, such as flashing a light bulb on the front panel, do not always give accurate digital information about the current percentage. Understanding the real state of the battery is critical for comfortable use of the gadget during the day.
There are several proven ways to get accurate battery status data, some requiring additional software, while others allow you to get information “here and now” without connecting to a phone. Xiaomi and its sub-brand Redmi have implemented different monitoring mechanisms in their devices, so the approach to diagnosis may vary depending on the model.
In this article, we will discuss in detail the software and hardware diagnostic methods, as well as explain why indicators can lie and what to do if the case stopped charging headphones.
Software Indication through the Xiaomi Earbuds app
The most accurate and informative way to get data on the status of the battery is using the official application Xiaomi Earbuds. This utility is available for Android and iOS and allows you to manage most modern models. TWS-Headsets released under the brands Xiaomi, Redmi and Poco.
After pairing the headphones with your smartphone and connecting to the Internet, the app automatically prompts you to update the firmware and displays the main screen with detailed statistics, which displays not only the total percentage of the case charge, but also the individual state of each headphone, which helps to identify the imbalance in the battery operation.
The app's interface is intuitive: a large digit shows the remaining charge of the case, and the animation shows how much energy is left in the left and right ear inserts. If the app shows that the case is 100% charged, but the headphones sit down in 30 minutes, this may indicate battery degradation or a software failure of the controller.
- 📱 Open the Xiaomi Earbuds app on the smartphone’s home screen.
- 🔋 Look at the digital value in the center of the screen — that's the case charge.
- 🎧 Check the individual indicators for left and right headphone.
- ⚙️ Go to the device settings to check the version of the firmware.
⚠️ Note: If the application does not see the case, although the headphones are connected, try to remove them from the case and insert them back, tightly closing the cover for 5 seconds to activate the contacts.
Why can the app show incorrect data?
Use of MIUI widget and pop-up windows
Users of Xiaomi, Redmi and Poco smartphones, working on the shell of MIUI or HyperOS, have a unique advantage - native integration with the brand's accessories. When you open the cover of the charged case next to the phone, an animated window with the charge level of all components of the headset automatically appears on the smartphone screen.
This window appears even without the application running at the Bluetooth system services level, but it's worth considering that the widget only displays data when you connect. If you close the case and put the phone in your pocket, you'll only see the actual percentage when you open the lid next or unlock the screen within Bluetooth range.
For more constant monitoring, you can add a Bluetooth or Xiaomi Earbuds widget to your desktop, and you can see your current connection status and charge level without having to open your case, which is especially useful for monitoring the discharge of the case, as it discharges even when the headphones inside it are already charged (standby).
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To save battery life, turn off the constant search for Xiaomi devices in Bluetooth settings unless you plan to use widgets frequently, as this increases your phone’s power consumption.
Importantly, the pop-up only appears when you first pair or reset your headphones. If the window stops appearing, a system bug may have triggered and you will need to pair it again via the Bluetooth menu.
Hardware indication: LEDs and screens
Not all Xiaomi headphone models feature a digital display, but most have LED lights. Understanding the color scheme and blinking modes is key to quick diagnosis without a phone.The LED color can vary from model to model, but Xiaomi's overall logic remains the same.
Usually, there are one or more LEDs on the front or inside of the case. When you open the lid or remove the headphones, they light up, showing the residual charge. In more expensive models, such as the Xiaomi FlipBuds Pro or Redmi Buds 4 Pro, there may be a presence of the LEDs. OLED-screen displaying the exact percentage.
If your device doesn't have a screen, focus on the color and frequency of the indicator blinking. White or green usually means high charge, yellow or orange means medium charge, and red means critically low level that requires immediate recharging. Some models use flashing red light to signal a malfunction or contact problem.
| Color of indicator | Rey's work. | Approximate charge | Action. |
|---|---|---|---|
| Green (permanent) | Normal work. | 60-100% | Use it. |
| Yellow/Orange | Medium grade | 20-60% | Charge soon |
| Red (blinking) | Critical discharge | 0-10% | Charge urgently |
| White (blinking) | Interconnection mode | Anybody. | Connect |
Remember, LEDs consume energy. If you often open the lid just to check the charge, you speed up the discharge of the case. In models without shielding, the LED can burn dimly even at low charge, which sometimes confuses users.
Checking through standard Android and iOS settings
If you don’t want to install special apps, you can use standard operating system tools. Modern versions of Android (starting with version 10) and iOS (starting with version 14) can display the charge of connected Bluetooth devices in the notification curtain or battery widgets.
In Android, you just lower the curtain down after you plug in your headphones. Near the Bluetooth icon or the Device widget, you often display a composite charge or separate percentages for the case and the headphones. However, this method has a limitation: it only shows the charge of the case when the headphones are inside it and the cover is open (or just closed), because when closed, the case can go into sleep mode and stop transmitting telemetry.
On iPhones, Xiaomi headphone owners can see the case charge in the Battery widget if you add it to the lock screen or desktop. The accuracy of the data here depends on the quality of the Bluetooth protocol implementation of a particular headphone model. Some budget models of Redmi can only transfer a total charge, ignoring the separation into case and inserts in the system interface.
- 📲 Lower the notification bar on Android or open widgets on iOS.
- 🔍 Find a Bluetooth icon or a Battery widget».
- 👁️ Check if a separate scale for the charging case is displayed.
- 🔄 Update the widget page by pulling the list down if the data doesn't change.
It's important to understand that standard OS tools often update data with a delay. If you just put a case on charge, the phone may still be able to do so. 5-10 It's normal for Bluetooth Low Energy protocols to show the old percentage (BLE).
What to do if the indicators are not working or lying
It's not uncommon for an app to show 100 percent and the headphones to turn off after 10 minutes, or for a case to not respond to a network connection at all, most often the problem is oxidation of the contacts or software freeze of the power controller.
The first thing you need to do is to do a visual inspection and cleaning, and there are metal contacts (usually gilded pins) at the bottom of the headphones and inside the recess of the case, which eventually form an oxide film or get earwax, which prevents normal charge current, and wipe the contacts with a dry lilac wipe or cotton swab lightly soaked in isopropyl alcohol.
⚠️ Warning: Never use water or aggressive chemical solvents to clean contacts, as getting moisture inside the case will lead to an irreversible short circuit of the board.
If mechanical cleaning doesn’t work, a software reset is required.This action returns the memory controller to factory settings and often eliminates battery calibration errors. For most Xiaomi models, you need to put the headphones in the case, open the lid and pinch the touch areas on both headphones (or the button on the case, if any) for 10-15 seconds until the indicator flashes orange.
☑️ Diagnostics of charge problems
After resetting, the headphones must be re-coupled with the phone, removing the old entry from the list of Bluetooth devices. If after all the procedures the case still does not charge or shows an incorrect charge, there is a high probability of physical wear of the lithium polymer battery, the capacity of which fell below the critical threshold.
Battery calibration and life extension
To ensure that the charge indication works correctly in the future, it is recommended to carry out a calibration procedure periodically, especially for devices that have been in use for more than a year, the essence of the method is a full discharge and charge cycle, which helps the controller to re-determine the boundaries of the capacity.
To calibrate the battery of the case, discharge it completely before the indicators turn off. Then put the headphones in the case and connect the case to the charger. Leave the device to charge continuously to 100% and for another 1-2 hours after that. Do not use headphones during the calibration process.
Also, to extend the life of the battery, follow simple operating rules: Do not leave the case discharged to zero for long-term storage, as this leads to a deep discharge, after which the battery cannot be restored. The optimal charge level for storage is 60-70%.
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Regular calibration (once every 2-3 months) and avoiding full discharge are the main conditions for a long and accurate battery life of your Xiaomi case.
Avoid overheating the device, do not leave the case with headphones in direct sunlight or on the car panel in the summer. High temperatures accelerate chemical reactions inside the battery, irreversibly reducing its capacity and distorting the readings of the charge sensors.