Xiaomi Mi True Wireless Earbuds (including Basic, Basic) 2, Air 2/2S/2 SE, AirDots and others have become some of the most popular accessories due to a combination of price, sound quality and convenience. However, many users face problems when charging: headphones do not charge in the case, the indicators do not burn as expected, or the battery goes down too quickly. In this article, we will analyze all the nuances of charging - from the basic rules to troubleshooting.
It’s important to understand that the charging process of the Mi True Wireless is different from wired headphones: it involves two batteries (in the headphones themselves and in the case), as well as wireless technology. We will tell you how to use the charger most efficiently, which adapters are suitable, how long it takes to fully charge and how to avoid typical errors that shorten the battery life.
1. Supply kit and charging connectors
The Xiaomi Mi True Wireless Earbuds headphone box always has a storage and charging case, but the charger (power adapter) is not attached to all models. For example, there is no cable in the AirDots Basic kit, and the Air 2 Pro may have a charger (power adapter) USB-C This is important to consider when you first charge.
Types of connectors in different models:
- 🔌 Micro-USB is an outdated standard used in Mi True Wireless Earbuds Basic (1st generation) and some budget versions.
- 🔌 USB Type-C - modern connector, found in Air 2/2S/2 SE, AirDots Pro 2 new models.
- ⚡ Wireless charging (Qi) – supported in Air 2 Pro, AirDots 3 Pro and flagship versions (requires a separate purchase of Qi charging).
If you do not have a cable, use a certified cable. USB-And if you have a cable with a connector, you can damage the power controller of the case, and you can also look at the power of the adapter, and you can use the power of the power outlet chargers optimally. 5V/1A or 5V/2A. More powerful adapters (for example, from smartphones to 18W) will not damage the case, but will not accelerate charging - the controller limits the current.
2. Step-by-step instruction: how to charge the case and headphones
The charging process is two-step: first, the case is charged, then the headphones are fed, and let's look at both.
Charging the case from the grid
To charge the case:
- Connect the cable to the connector on the back of the case (Micro-USB or Type-C).
- Insert the other end of the cable into the power adapter (or USB-port).
- The indicator on the case should light up red (charging is going) or white/green (full charge).
Charging the case headphones
To charge the headphones themselves:
- Place both headphones in the nest of the case - they should be securely fixed by magnets.
- Close the case cover. The headphones will go out, and the case will light up red/orange (if the case is connected to power) or flash (if the case is charged from headphones).
- Wait for full charging (the indicators on the headphones will go out, and on the case it will turn green / white).
☑️ Pre-charging check
The full charge time depends on the model:
| Model | Case charging time | Headphone charging time | Case capacity (mAh) |
|---|---|---|---|
| Mi True Wireless Earbuds Basic | ~1.5 hours | ~1 hour | 300 |
| Air 2 / 2S | ~2 hours | ~1.5 hours | 400 |
| AirDots 3 Pro | ~2.5 hours | ~1.5 hours | 500 |
| Air 2 SE | ~1.8 hours | ~1.2 hours | 350 |
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If the indicator on the case doesn't burn when you connect the cable, try another cable or adapter. Often the problem is oxidized connector contacts - gently clean them with a cotton swab dipped in alcohol.
3. Charging indicators: what do colors and blinks mean
The display system of Xiaomi Mi True Wireless Earbuds differs depending on the model, but the general principles are similar. Let's understand what the signals on the case and headphones mean.
Case indicator
- 🔴 Red (burns constantly) – there is a charge case from the network.
- 🟢 Green/white (burning constantly) – the case is fully charged.
- 🟠 Orange (Blinks) - Headphones charge from the case.
- 🔴 Red (flashes fast) – low case charge (less than 10%).
- ⚪ White (Blinks 3 times) – charging error (e.g. short circuit).
Headphone indicators
- 🔴 Red (when placed in a case) – headphones are discharged and begin to charge.
- 🟢 Green (when removed) - full charge.
- 🔴⚪ Red and white alternately – the headphones do not contact the case (check the position).
The Air 2 Pro and AirDots 3 Pro may have different displays, such as white instead of green when fully charged. If the indicators behave outside the box (e.g. flashing randomly), this may indicate a power controller malfunction or battery damage.
What to do if the indicator does not burn at all?
4. Wireless charging: how to use and which devices are suitable
Some Xiaomi Mi True Wireless Earbuds models (such as the Air 2 Pro or AirDots 3 Pro) support Qi wireless charging. This is handy if you already have a Qi charger for your smartphone.
For wireless charging, suitable:
- 📱 Xiaomi Mi Wireless Charging Pad Charging Stations (20W or 30W).
- 🔋 Universal Qi-chargers from Samsung, Anker, Baseus (power from the 5W).
- 🚗 Wireless car charging with support for Qi.
How to charge wirelessly:
- Place the case on the center of the charging pad (magnets will help to fix the position).
- The indicator on the case should light up white or green (depending on the model).
- Wireless charging time is 20-30% longer than cable charging time.
⚠️ Warning: Not all Qi charging is compatible with Xiaomi cases. Avoid cheap Chinese charging without certification - they can overheat the battery: 5W–10W.
If the case is not charged wirelessly:
- Check that the charging station is on the network.
- Make sure the case is located in the center of the site.
- Remove the case case (if any) – it can block the signal.
- Reboot the case by holding the reset button (if provided).
5. Typical charging errors and how to avoid them
Many users unintentionally shorten battery life or experience problems due to wrong actions, and consider the most common mistakes and ways to prevent them.
Mistake 1: Using unoriginal cables
Cheap cables without certification may have poor resistance or contacts, leading to:
- 🔥 Overheating of the case connector.
- ⚡ Unstable voltage and damage to the controller.
- 🐢 Slow charging or lack of it.
Solution: Use labeled cables USB-IF Or original from Xiaomi.
Error 2: Charging at extreme temperatures
Li-ion and Li-Po batteries (used in Mi True Wireless) don't like:
- ❄️ Temperatures below 0°C - Capacity temporarily drops.
- 🔥 Temperatures above 40°C – Battery degradation is accelerating.
Solution: Charge your headphones at room temperature (10–35)°C. Do not leave the case under direct sunlight or near heat sources.
Mistake 3: Complete Case Discharge
Deep discharge (below 5%) is harmful to lithium batteries, and if the case is discharged to zero, it can be difficult to "resuscitate".
Solution: Try to recharge the case when the indicator flashes red (usually at 10-15% charge).
⚠️ Warning: If the case doesn't charge after full discharge, try leaving it on charge for 12 to 24 hours. Sometimes the controller needs time to wake up. If that doesn't work, you'll need to replace the battery.
Mistake 4: Keeping your headphones discharged
If you don't use headphones for a long time, store them at 40-60% charge, or 100% charge when stored long, accelerates battery aging.
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Optimal charging mode for battery durability: keep the case charge in the range of 20-80%, avoid extreme temperatures and use original accessories.
6. How to extend the battery life
The batteries in Mi True Wireless Earbuds are designed for 300-500 charging cycles, after which the capacity begins to decline markedly.
Advice 1: Battery calibration
Once every 2-3 months, perform a full cycle of discharge-charging:
- Discharge the headphones and case until completely shut down.
- Charge to 100% without interruption.
This helps the controller to correctly determine the level of charge.
Advice 2: Avoid "recharging"
Don't leave the case on charge for more than 12 hours after reaching 100%.Modern controllers turn off power, but it's better not to take risks.
Tip 3: Clean up the contacts
Dust and oxidation on the case and headphone contacts worsen charging. Rub them with a soft dry cloth once a month. Use a cotton swab dipped in isopropyl alcohol for severe contaminants.
Advice 4: Update the firmware
The manufacturer periodically releases updates to optimize power consumption. Check the relevance of the firmware through the Mi Home app or Xiaomi Wear.
Tip 5: Use smart chargers
Adapters with support for Quick Charge or Power Delivery technologies automatically select the optimal current, which reduces the load on the battery.
7. Solving charging problems
If the headphones or case are not charged, act according to the algorithm:
Problem: Case is not charged from the network
- 🔌 Check the cable and adapter (try charging another device).
- 🧹 Clean the case jack of dust.
- 🔄 Reboot the case: Hold the button (if any) for 10-15 seconds.
- 🔋 Try wireless charging (if supported).
Problem: Headphones do not charge in the case
- 🎧 Make sure the headphones are properly inserted (magnets should work).
- 🧽 Clean contacts on headphones and in the case.
- 🔄 Reset the headphones: put them in the case, close the lid, wait 30 seconds.
- 🔋 Check the case charge - if it is discharged, charge it first.
Problem: Fast discharge of headphones
- 📱 Disable unused functions (for example, LC3 codec in Bluetooth settings if enabled).
- 🔊 Turn down the volume – the maximum battery sits down 2 times faster.
- 🔄 Reset your headphone settings through the Mi Home app.
- 🏥 If nothing helps, the battery could wear out (replacement required).
⚠️ Warning: If the case or headphones heat up during charging (more than 45)°C, immediately disconnect them from the power supply, this may indicate a malfunction of the battery or controller, in which case do not use the device until repair is made!