How to charge wireless headphones Xiaomi Mi True Wireless: instructions with nuances

Why the right charging is important for Xiaomi Mi True Wireless

Xiaomi Mi True Wireless headphones (including Mi True Wireless Earbuds Basic 2, Mi AirDots and their modifications) have become popular due to a combination of price, sound quality and convenience. However, many users face problems: fast discharge, unstable work of one of the headphones or a complete failure of the case. 80% of these malfunctions are associated with improper charging – from the use of unoriginal cables to ignoring discharge cycles.

Lithium polymer batteries in headphones and case are sensitive to voltage surges, overheating and deep discharge, for example, if you leave your headphones empty for a month, the battery capacity can decrease on the back of the headphone. 30-40% — This article will not only examine the basic steps ("insert in the case"), but also the hidden nuances: how to choose a charger, what to do when display errors, and why sometimes the case does not charge the headphones even when the headphones are not charged. 100% charge.

Xiaomi’s official documentation often goes unnoticed about the intricacies of operation, such as the instructions do not state that the first 3 charging cycles determine the battery’s durability, or that Quick Charge can be used for the case, but with reservations. We have gathered data from technical specifications, user feedback and lab tests to provide the most complete guide.

1. Package and types of charging: what goes into the box and what to buy

The standard equipment Xiaomi Mi True Wireless includes:

• 🎧 Two wireless headphones (left and right, often labeled as L and R).
• 📦 Charging case with built-in battery (capacity varies from 300 to 500 mAh depending on the model).
• 🔌 Cable USB Type-C (in older models - Micro-USB) for charging the case.
• 📄 Short instructions (often without charge details).

Importantly, there's no power supply in the box, and this is done to reduce cost and meet environmental standards, but this leads to a common mistake, which is to use the first chargers you see. 5V/2A It will work, but here is the charge from the laptop on 20V It may damage the case controller.

Additional accessories that may be needed:

• 🔋 External battery (power bank) with support USB-C PD (for Type-C models).
• 🔌 Wireless charging pad (if the case supports Qi standard, for example, Mi True Wireless Earbuds) 2S).
• 🧴 Alcohol wipes for cleaning contacts (oxidation is a common cause of poor charging).

2. Step-by-step instruction: how to charge headphones and case

The charging process consists of two steps: charging the headphones themselves (from the case) and charging the case (from the power source).

Charging the case headphones

1. Place the headphones in the case, combining contacts (on the headphones and inside the case there are metal dots).
2. Close the case cover and charge automatically, and on some models (Mi AirDots Pro) you need to press the button on the case to activate.
3. The indicator on the case will show the status: 🔴 Red/Blinking – Headphones are being charged. 🟢 Green/Constant – Headphones charged to 100%. 🟡 Yellow/Blinking: Error (see Section 5).

Case-based headphones charge 1.5-2 hours (depending on model and discharge rate). For example, Mi True Wireless Earbuds Basic 2 charges in 1.5 hours, and Mi AirDots Pro 2 charges up to 2 hours.

Charging the case

1. Connect a USB-Type-C (or Micro-USB) cable to the case.
2. Connect the other end of the cable to the power supply or USB-port.
3. Case indicator: 🔴 Red - charging is underway (charged 0-99%). 🟢 Green – Charging completed (100%).

Case charging time: 2-3 hours (case battery capacity – 300-500 mAh). Using Quick Charge reduces time to 1.5 hours, but can reduce battery life by 10-15% with regular use.

Check the integrity of contacts on headphones and in the case|

Use the original cable (or certified analogue)|

Charge the case to 100% before first use|

Do not interrupt the first charge of headphones from the case|

Clean the contacts with an alcohol napkin if necessary-->

3. Optimal charging conditions: what can and cannot

The life of Xiaomi Mi True Wireless batteries depends not only on the number of charging cycles, but also on the operating conditions.

What can't be done:

• 🔥 Charge the case under direct sunlight (for example, on a windowsill in summer).
• ⚡ Use damaged cables (with bare wires or broken connectors).
• 💧 Charge headphones or case immediately after moisture hits (even if the model has protection). IPX4).
• 🔋 Leave headphones in a discharged state for more than 2 weeks.

💡

If the case has not been used for a long time (more than a month), before charging, allow it to lie down for 10-15 minutes at room temperature, which will level the internal resistance of the battery and reduce the risk of overheating.

⚠️ Note: Some Xiaomi Mi True Wireless models (e.g. Mi AirDots Youth Edition) have a feature: if the case is discharged to 0%, it cannot be immediately connected to a high-current power source (>1A). Use it first. USB-port of computer 0.5A), and after the indication appears (after 5-10 minutes), go to the power supply.

4. Common Problems and Their Solutions

Even when properly operated, users are faced with charging errors, and let's look at the typical cases and how to fix them.

Problem 1: Case doesn't charge headphones

Causes and solutions:

• 🔌 Contact oxidation: wipe your contacts on headphones and in your case with an alcohol wipe. Use a toothpick for hard-to-reach areas.
• 🔋 Case discharged - connect the case to charging for 10-15 minutes, then try again.
• 🤖 Firmware failure – reset the headphones to factory settings (press the button on the case for 10 seconds).
• 🔄 Version incompatibility – if the headphones and case from different models (for example, the left earphone from Basic 2, and the right one from AirDots), charging may not work.

Problem 2: Case is not charged from the power supply

Diagnosis:

1. Try another cable and power supply.
2. Check if the indicator is on when connecting to USB-If so, the problem is the power supply.
3. Check the Type-C connector on the case: often when the contacts are bent inwards.

If the case still does not charge, the cause may be a faulty charging controller, in which case repair is required (cost of replacement fee - 800 rubles).

Problem 3: One earphone is charging, the other is not

This is one of the most common malfunctions.

1. Change the headphones to the case, and if the problem has moved to another headphone, the case is defective.
2. Check if the indicator on the problem earphone is on when placed in the case. If not, the earphone itself is defective.
3. Update the headphone firmware through the Mi Home app (if the model supports it) OTA-update).

⚠️ Warning: If the headphone falls into the water (even with protection) IPX4) You have problems charging, don't plug it into the case, it can cause a short circuit. First, dry the earphone in rice or silica gel for 24 hours, then check the multimeter resistance of contacts.

5. How to extend the battery life: tips from engineers

The average battery life of Xiaomi Mi True Wireless is 300-500 charge cycles (about 2-3 years when used in active use), but if used improperly, this can be reduced to 1 year.

Advice 1: Avoid deep discharge

Lithium polymer batteries degrade faster at less than 10 percent. Optimal range is 20 to 80 percent. If you see headphones dropping to 20 percent, put them in a case. Same goes for the case: don't wait until it's completely discharged.

Advice 2: Use “smart” charging

The following are the models of Mi True Wireless Earbuds. 2S) Support Smart Charge, which automatically shuts down power when you reach 100%. If your case doesn't support it, turn it off 30 minutes after the green light light light is lit.

Advice 3: Keep it right

If you haven’t used your headphones for more than a week:

• Charge your headphones and case to 50%.
• Store in a dry place at a temperature of 15-25°C.
• Check the charge every 3 months and recharge up to 50% if necessary.

Advice 4: Update the firmware

The manufacturer regularly releases updates that optimize power management. v1.4.7 Mi AirDots Pro 2 fixes an error that caused the headphones to discharge in a case in 2 days instead of 7. Update the firmware through the Mi Home app:

1. Connect the headphones to your smartphone.
2. Open Mi Home → find the device → Firmware update.
3. Follow the instructions (don’t turn off your headphones during the process!).

💡

Regular firmware updates can increase headphone life by 10-15% by optimizing power management algorithms.

6. Alternative charging methods: wireless charging and power bank

In addition to standard charging from the outlet, the Xiaomi Mi True Wireless cases (starting with the Mi AirDots Pro and later) support alternative methods.

Wireless charging (Qi-standard)

Advantages:

• ✅ Convenience - just put the case on the site.
• ✅ No wear of the Type-C connector.
• ✅ Compatible with most wireless charging (e.g. Xiaomi Wireless Charger).

Disadvantages:

• ❌ Slower by 20-30% (full charge in 3-4 hours).
• ❌ Heating the case (temperature can rise to 40)°C).
• ❌ Not all models support (check the specifications).

How to charge wirelessly:

1. Place the case on the charging pad (indicator up).
2. Wait for the indication to appear (usually a flashing white or red light).
3. Do not move the case until the charge is complete (contact may be interrupted).

Charging from power bank

Ideal for travel. Recommendations:

• 🔋 Use the power bank with the exit 5V/1A or 5V/2A.
• 📱 Avoid Quick Charge models (may damage the case controller).
• 🌡️ Don't charge in the cold (<10°C) - battery capacity will be temporarily reduced.

Example of compatible power bank:

• Xiaomi Mi Power Bank 3 10000mAh (supportive USB-C).
• Baseus 65W Power Bank (with Low Current Mode for low-power devices).

💡

If you use a power bank with multiple ports, connect the case to the port with minimal current (usually marked as 1A This will reduce heat and extend the battery life.

7. Technical characteristics of batteries: what you need to know

To understand how to charge Xiaomi Mi True Wireless, let’s understand the technical details of their batteries.

How these parameters affect charging:

• 🔋 Capacity: Case with a battery of 500 mAh can fully charge the headphones 3-4 times (since their total capacity) ~100 mAhh).
• 🌡️ Temperature: Charging at <0°C or >45°C reduces capacity by 5% cycle.
• ♻️ Cycles: After 500 cycles, the case capacity will decrease to 70-80% of the original.

Interesting fact: in headphones Xiaomi uses batteries from ATL (Amperex Technology Limited, the same manufacturer that supplies batteries to Tesla and Apple, guarantees high quality but requires compliance with operating regulations.

FAQ: Answers to Frequent Questions