Xiaomi Mi True Wireless Earphones 2 Basic Charging Time: Full Guide with Tables and Tips

Xiaomi Mi True Wireless Earphones 2 Basic has become one of the brand’s most popular accessories due to its combination of price, sound quality and compactness. However, many users have the question: how long does it take to fully charge these headphones? The answer depends on several factors – from the level of discharge, the type of charger and even the ambient temperature. In this article, we will analyze all the nuances of charging, including battery recovery time in different scenarios, and give practical recommendations for extending the battery life.

It's important to understand that headphone charging time and case charging time are two different processes. For example, the headphones themselves can charge in 1.5 hours, and the case can charge in 2-3 hours. In addition, the manufacturer often specifies data for "perfect conditions", which are rare in reality. We tested Mi True Wireless Earphones 2 Basic with different chargers and prepared detailed results that will help you plan your use of the gadget.

Xiaomi’s official data: what the manufacturer promises

According to the technical specification published on the Xiaomi website, the Mi True Wireless Earphones 2 Basic headphones have the following charging characteristics:

• 🔋 Time of full charge of headphones in the case: about 1.5 hours (from 0% to 100%).
• 🔌 Case charging time via cable USB Type-C: About 2 hours.
• ⚡ Support for fast charging: No (maximum power — 5V/1And).
• 📦 Case battery capacity: 300 mAh, headphones - 43 mAh each.

However, these figures are relevant when using the original charger with a power output of 5V/1A and ambient temperature of 20-25°C. In real conditions, the time can vary by 10-30%. For example, if you use charging from a smartphone with a power of 5V/2A, the case will still not charge faster - the controller limits the current to 1A.

⚠️ Note: Xiaomi does not recommend using chargers with higher power output 5V/2A. This can lead to overheating of the power controller and shorten battery life.

Real tests: how much headphones charge in different conditions

We ran a series of tests with Mi True Wireless Earphones 2 Basic to see how charging times change depending on scenarios.

• 🔌 The original Xiaomi charger (5V/1A).
• 🔌 Charging from a smartphone (5V/2A, Quick Charge 3.0).
• 🔌 Power Bank on the 10000 mAhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh (5V/2.1A).
• 🔌 Wireless charging (Qi, 5W).

The results are shown in the table below. It is important to note that the headphones were charged from 0% to 100%, and the case was charged from 10% to 100% (as it is difficult to completely discharge the case without headphones).

Wireless charging was the slowest and hottest, with the temperature of the case rising to 45°C, which can negatively affect battery life when used regularly. If you care about speed, you'd better opt for wired charging with the original cable.

How to speed up charging: working methods

While Mi True Wireless Earphones 2 Basic doesn’t support fast charging, there are a few ways to reduce battery recovery time a little:

1. Use the original cable. Cheap thin-vein cables can limit current by increasing charging times. 10-15%.
2. Charge at room temperature. Cold (below 10°C) or heat (above 30°C) slow down the chemical processes in the battery.
3. Don't use headphones while charging. If you're listening to music while the headphones are in the case, some of the energy is used to play, not to charge.
4. Turn off Bluetooth on your smartphone. If the case is connected to the phone, it periodically wakes up to sync, which consumes charge.

Use the original USB Type-C cable

Charge at 20-25°C

Do not turn on the headphones during charging

Disable Bluetooth on your smartphone

Avoid wireless charging-->

Another nuance: if the case is discharged to 0%, first 10-15 The charging minutes can go very slowly, because the controller wakes up the battery first and then starts charging fully.

Frequent errors that slow down charging

Many users unconsciously commit actions that increase charging time or even damage the battery, and these are the most common mistakes:

• 🔥 Charging at extreme temperatures, like leaving the case in the sun or next to the heating battery, not only slows charging, but also shortens battery life.
• 🔌 Using damaged cables, broken wires or oxidized contacts create additional resistance, reducing current.
• 📵 Permanent Bluetooth connection. If the case is in range of the smartphone, it wastes energy on maintaining the connection.
• 🔄 Frequent interruptions of charging, such as recharging for 10 minutes, then turning off. This leads to fragmentation of the charging/discharging cycles.

⚠️ Attention: If the case has stopped charging completely, check the purity of the contacts on the headphones and inside the case. Often the cause is a buildup of dust or oxidation.

How much does the charge hold: autonomy in different modes

Charging time is only half the question, and it doesn't matter how long the headphones last on a single charge, and according to tests, the Mi True Wireless Earphones 2 Basic show the following results:

• 🎵 Music playback at 50% volume: up to 4 hours.
• 📞 Telephone conversations: up to 3.5 hours.
• 🎮 Low latency games: up to 3 hours (due to active Bluetooth use).
• 🔇 Standby mode (no playback): up to 12 hours.

The case allows you to completely recharge the headphones 3-4 times, which together gives you up to 16 hours of battery life. However, these figures are relevant for new headphones. Over time, the battery capacity decreases, and after 1-2 years, the autonomy can decrease by 20-30%.

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To extend the life of the battery, try not to discharge the headphones to 0%, the optimal range is from 20% to 80%.

How to check the charge level of the case and headphones

You can find out the current charge of Mi True Wireless Earphones 2 Basic in several ways:

1. One white LED means charge up to 30%, two up to 60%, three up to 100%. If the indicator flashes red, charge below 10%.
2. Notification on the smartphone. When you connect the headphones to Xiaomi or Redmi smartphone, a pop-up with a percentage of charge appears.
3. The Mi Home app. In the Devices section → Headphones display detailed information, including the charge of each earphone and case.

If the indicator on the case does not burn at all, this can mean:

• 🔋 The case is completely discharged (you need to connect to the charging on the 5-10 minutes to "wake up" the controller).
• 🔌 Core or connector damaged USB Type-C.
• 💥 Failure of the battery or control board.

Comparison with other Xiaomi models

For clarity, compare Mi True Wireless Earphones 2 Basic with other popular headphones brand charging time and autonomy:

As you can see from the table, the Mi True Wireless Earphones 2 Basic is outperforming the newer models in terms of charging speed and autonomy, but they remain among the most affordable in the lineup, which justifies some trade-offs.

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If you want fast charging, consider models that support Quick Charge, such as the Redmi Buds 3 Pro or Xiaomi Buds 4.

FAQ: Answers to popular questions