Xiaomi wireless headphones discharge quickly: reasons and 10 working solutions

Xiaomi’s wireless headphones are some of the most popular on the market due to their value for money, but many users face a common problem: even new models like the Redmi Buds 4 Pro, Xiaomi Buds 3T Pro or Haylou GT7 start to run out in 1-2 hours instead of the declared 6-8. What is the reason? Most often the fault is not factory defects, but the wrong settings, battery wear or software failures.

In this article, we’ll look at all the possible causes of fast discharge, from the banal ANC on to the hidden functions that eat up charge in the background. You’ll learn how to diagnose a problem, restore battery capacity without replacing, and when to really carry headphones to the service. And also a list of Xiaomi models with the most frequent complaints about the battery and their “weak spots”.

1. Check the actual working hours: the norm or the problem?

Before you panic, compare the actual time of your headphones to the official specs. For example, Xiaomi Buds 4 promises up to 30 hours per case, but in practice, with active use of ANC, this value drops to 15-18.

If your headphones discharge 2-3 times faster than the specified values, the problem is obvious. If the difference is small (1-2 hours), external factors may be to blame: low temperature, high volume or background processes.

⚠️ Warning: Many users confuse the discharge of headphones and case. If the case does not hold the charge, and the headphones themselves work normally - the problem is in the power controller of the case, not in the battery of the headset.

2 Top-5 Causes of Rapid Discharge (and How to Remove Them)

In 80 percent of cases, one of these factors is the problem. Go through the list and eliminate them in order:

• 🔊 Active noise cancellation (ANC) or transparent mode is enabled, which increases the CPU and battery load by 30 to 50 percent, and turn them off in the headphone settings (via Mi Earphones or Haylou Fun).
• 📱 Permanent dual-device connectivity: Many Xiaomi models support multipoint (simultaneous phone and laptop connection), but this reduces the time of operation by 20 to 25 percent.
• 🔋 Battery wear: Lithium polymer batteries lose up to 20% of their capacity after 300 to 500 charge cycles. If the headphones are older than 1.5 to 2 years, check the battery status through the AccuBattery app (for Android).
• 🔄 Frequent reconnection: If the headphones are constantly losing touch with the phone (for example, due to weak Bluetooth 5.0 on older smartphones), they waste energy searching for the device. Update the firmware of the headphones and phone.
• 🌡️ Extreme temperatures: Charging or using headphones below 0°C or above 35°C accelerates battery degradation. Store them in a case at room temperature.

💡 Tip: If you are using Xiaomi Buds 3 Pro or newer, check the Adaptive ANC setting in the app. In this mode, the headphones automatically adjust the noise reduction level, which can unpredictably affect battery consumption.

3. Software failures: reset, firmware, calibration

If hardware is excluded, the problem may lie in the firmware or the wrong settings. Let's start with the simplest thing: resetting the headphones.

1. Put both headphones in the case and close the lid.
2. Press and hold the button on the case (usually located behind) for 10-15 seconds until the indicator flashes red and white.
3. Open the case cover - the headphones should automatically reboot.
4. Connect them to your phone as a new device.

If the reset didn't work, update the firmware.

1. Install the official app: For Redmi Buds/Xiaomi Buds - Mi Earphones (Android/iOS), for Haylou - Haylou Fun (Android only).

Connect the headphones to the phone and open the application.

Firmware update

If a new version is available, install it by following the instructions on the screen.

⚠️ Warning: Don't interrupt the firmware update process! If the headphones go off during installation, they can turn into a brick. Charge them and the case to 100% before starting.

If the update didn’t work, try calibrating the battery:

1. Discharge the headphones until completely switched off (0%).
2. Put them in the case and charge to 100% without interruptions.
3. Repeat the cycle 2-3 times, which can restore the correct mapping of the charge level.

4. Hardware problems: contacts, battery, controller

If the software methods didn't work, the problem could be the hardware.

• 🔌 Oxidation or contamination of contacts. Check the metal contacts on headphones and in a case (usually 3-4 gold dots). Wipe them with a cotton swab soaked in isopropyl alcohol (do not use vodka or acetone!).
• 🔋 Battery bloating. If the case is not closing tightly or the headphones are not holding in the nests, the battery could swell. It's dangerous -- don't use these headphones. Call the service.
• 🔄 Faulty charging controller: If the case is charging but not giving power to the headphones (or vice versa), the problem is the power control chip. Repair is possible, but it's often cheaper to buy a new case.
• 🎧 A damaged speaker. If one earphone discharges faster than the other, it may have short circuitd. Check if there was any moisture in the earphone (even if the model has IP54 protection, like the Xiaomi Buds 4).

🔧 Self-repair: Replacement of the battery in headphones or a case can be done at home, if you are confident in your skills. Redmi Buds 3 Pro and similar models will suit battery type 301230 (3.7V, 55-60 mAh). Cost from 300 rubles. However, remember: after replacement may require calibration of the controller through special equipment.

⚠️ Warning: If Xiaomi headphones are warranty, don't open them yourself! The company's service centers have special tools for diagnosing the battery (such as the Xiaomi Mi Battery Tester) that will show the exact capacity and internal resistance.

💡

Before disassembling the headphones, take a picture of the location of all the plumes and contacts. In the Haylou GT7 and Xiaomi Buds 3T models, thin wires that go to the microphone often break.

5. Optimization of settings for maximum operating time

Even if the battery is fine, the wrong settings can reduce the battery life by 30-40%.

• 🔇 Disable unnecessary features: ANC/ Transparent mode (savings up to 30% of charge). Voice assistants (e.g., Xiao AI in Xiaomi Buds 4 Pro). Automatic connection to the latter device.
• 📶 Use the optimal codec: For Android: AAC or SBC (less energy-consuming than aptX or LDAC). For iPhone: only AAC (no other codecs are supported). You can change the codec in the Bluetooth settings on your phone (under "Sound Quality" or "Additional").
• 🔊 Turn down the volume to 60-70%. At maximum volume, the headphones consume 25% more power.
• 🔄 Turn off automatic firmware updates. Background check updates drain the battery by 5-10% per day.

📊 Real model test: On the Redmi Buds 4 Pro, when ANC is turned off, the SBC codec is turned off and the volume is 70%, the running time increased from 4.5 to 7 hours (compared to ANC, AAC and 100% volume).

For models that support Mi AI (such as Xiaomi Buds 4), turn off the Smart Ear Recognition feature in the app settings. It constantly scans if the headphones are on, which consumes additional energy.

💡

The most effective way to extend your running time is to disable the ANC and use the SBC/AAC codec, which gives you up to 40% gain without loss of sound quality for most users.

6. when it is time to carry in the service (or buy new ones)

If you’ve tried all the methods, but your headphones still run out in 1-2 hours, it may be time for a professional diagnosis.

• 🔥 Case or headphones are heated during charging/use (fire risk!).
• 🔋 The battery swelled (as seen from the deformation of the housing).
• ⚡ Headphones do not hold charge at all (discharge in 10-20 minutes).
• 🔌 Charging contacts have blackened or melted.
• 🎵 The sound has become quiet or distorted (may indicate a fee problem).

💰 Cost of repairs in Xiaomi service centers (2026):

• Replacement of the battery in headphones: 800-1500 rubles.
• Replacement of the battery in the case: 1000-2000 rubles.
• Repair of the charging controller: 1500-2500 rubles.
• Full replacement of the board (with a short circuit): 2000-3500 rubles.

🔍 Where to fix:

• Official Xiaomi service centers (list on the site mi.com).
• Authorized partners (for example, Communication Service or M.Video Workshop).
• Local workshops (check reviews! many "specialists" spoil headphones at autopsy).

⚠️ Warning: If the headphones are under a year old, the repairs must be free of charge under warranty, but the warranty does not apply to:

• Mechanical damage (cracks, dents).
• Liquid intake (even if the model has IPX4 protection)
• Self-disassembly.

💡 Alternative to repair: If repairs cost more than 50% of the price of new headphones, consider buying a new model. For example, the Redmi Buds 5 Pro (2026) have an improved power controller and hold a charge 20% longer than its predecessors.

7 How to prolong the life of the battery: rules of operation

To make Xiaomi headphones last longer, follow these recommendations:

• 🔋 Charge correctly: Don't keep your headphones on charge for more than 2-3 hours after reaching 100%. Use the original cable and adapter (or Quick Charge 3.0 support). Store your headphones with a charge of 40-60% (optimum for long-term storage).
• 🌡️ Avoid extreme temperatures: Do not leave your headphones in the sun (such as in a car in the summer).Do not use them in temperatures below -10°C (the battery may temporarily die).
• 🧼 Keep it clean: Clean the case and headphone contacts once a month with an alcohol wipe. Remove the earwax from the speaker mesh with a toothpick (carefully!).
• 🔄 Update your firmware: Check for updates every 2-3 months through the Mi Earphones app. Reset your headphone settings after the update (see Section 3).

📅 Battery life in Xiaomi headphones:

• 2-3 years with intensive use (daily charging).
• 4-5 years with careful operation (charging 2-3 times a week).

🔋 Battery myths:

• ❌ "You have to completely discharge the headphones before charging" -- no! Lithium polymer batteries don't have a memory effect.
• ❌ "Power bank charging ruins the battery" -- no! The main thing is that the power bank maintains a stable voltage. 5V
• ❌ If the headphones are lying idle, the battery won't go down -- no! Self-discharge is 2 to 5 percent per month.

💡

If you haven't used your headphones for more than a week, remove them from the case and store them separately, which will prevent the battery from running out of the case and the headphones from running into each other.

FAQ: Frequent questions about the discharge of headphones Xiaomi