Xiaomi's wireless headphones have become an integral part of the daily lives of millions of users. From the compact Redmi Airdots to the premium Xiaomi Buds 4 Pro, everyone will find a model to suit their needs. But one question worries everyone without exception: how long does it take to fully charge? The answer depends on the model, the type of charger and even the ambient temperature.
Many people are faced with a situation where the headphones are discharged at the most inopportune moment, and there is no time for long charging. In this article, we will not only analyze the standard charging time for popular Xiaomi models, but also reveal hidden nuances that will help save precious minutes. For example, did you know that using the original cable can reduce charging time by up to 30%? Or that some models support fast charging in 10 minutes, enough for 2 hours of playback?
We've analyzed technical specifications, we've run tests, we've collected feedback from real users to give you the most accurate and practical information possible: no water, no general phrases, just validated data and working tips.
Standard charging time on Xiaomi models
Each Xiaomi headphone series has its own characteristics, including battery capacity and supported charging technologies, and the official data from the manufacturer, as well as the results of independent tests, are presented below.
It is important to note that charging times are indicated for a fully discharged case and headphones, and if you connect them to a network with a residual charge (for example, 20%), the process will take much less time.
- 🔋 Redmi Airdots (S) – 1.5–2 hours (case 300 mAh, headphones 40 mAh each)
- 🔋 Xiaomi Mi True Wireless Earphones 2 – 1 hour (case 300 mAh, headphones 55 mAh)
- 🔋 Xiaomi Buds 3/3 Pro — 1 hour (with fast charging support)
- 🔋 Xiaomi Buds 4/4 Pro — 45–50 minutes (case) 500 MACh, headphones. 55 mAhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh)
- 🔋 Redmi Buds 4 Active – 1.5 hours (budget model without fast charging)
Note that fast-charging models like the Buds 4 Pro can recover up to 50% of your charge in 10-15 minutes, especially if you need to get in touch or listen to music.
Factors affecting charging speed
Even if you use the original kit, charging times can vary. Here are the key factors to consider:
Type of charger and cable
Using uncertified cables or low power adapters (5V/1A) can increase charging time by 1.5-2 times, the best option is the original Xiaomi cable with a 5V/2A or 9V/2A adapter (for fast-charging models).
Ambient temperature
If you charge your headphones below +10°C or above +35°C, the charging speed automatically decreases, and in some cases, the case may even interrupt the process to protect the battery from damage.
Condition of the battery
As time goes on, battery capacity decreases, and if your headphones have been in use for more than 2 years, charging times can increase by 20 to 30 percent and battery life can decrease.
4. Simultaneous charging of headphones and case
Some people plug the case into the network and put their headphones in it right away. That's not a mistake, but if the case is discharged, it will charge itself first, and then it will charge itself with the headphones.
- Charge the case to 100%.
- Put your headphones in it.
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If you need to urgently charge the headphones, and the case is discharged, connect the case to the network and after 5-10 minutes insert the headphones into it. The case will give priority to charging them, even if it is not fully charged.
How to speed up charging: proven ways
If you are constantly facing a time shortage, these methods will help reduce the charging process by 15-40%.
- ⚡ Use fast charging (if the model supports). for example, Xiaomi Buds 4 Pro charge to 50% post 10 minutes when connecting to the adapter 9V/2A.
- ⚡ Charge the headphones separately from the case. Some models (for example, Redmi Buds 4 Active) charge faster if you put them in the case one at a time.
- ⚡ Turn off your Bluetooth headphones while charging, which reduces the load on the controller and speeds up the process.
- ⚡ Use a wired connection instead of wireless charging (if the case supports both options.
A critical nuance: if your headphones stopped charging fast, check the status of contacts in the case. Oxidation or pollution can increase charging time by 2-3 times.
Use the original cable and adapter | Turn off Bluetooth | Charge at room temperature (+20..+25°C) | Clear case contacts with a dry wipe | Do not use headphones while charging-->
Frequent charging errors and their consequences
Many users are unaware that their actions reduce the life of the headphone battery.
1. Full-time charge
Keeping your battery at 100% reduces battery life, the optimal range is 20-80%, and if you don't want maximum autonomy, try not to drain it completely and keep your headphones on for days.
Use of left-hand adapters
Cheap chargers without protection can deliver unstable voltages, which leads to overheating of the battery, in the worst case, it can cause the battery to bloat.
Wet charging
If your headphones are in the rain or you're actively exercising, let them dry completely before charging.
4. Storage of discharged headphones
If you leave the headphones discharged for more than 2 weeks, the battery can fall into a “deep discharge”, after which it will be impossible to restore it.
What to do if the headphones are not charged?
Comparative Charging Time and Autonomy
To make it easier for you to choose a model, we have compiled data on the most popular Xiaomi headphones into one table, which shows the time of full charging (case + headphones) and the duration of operation under different use scenarios.
| Model | Charging time. | Autonomy (music) | Autonomy (conversation) | Fast charging. |
|---|---|---|---|---|
| Redmi Airdots (S) | 1.5 hours to 2 hours | 4 hours | 3.5 hours | No. |
| Xiaomi Mi True Wireless 2 | 1 hour | 5 hours | 4 hours | No. |
| Xiaomi Buds 3 Pro | 1 hour | 6 hours | 4.5 hours | 10 minutes = 3 hours of music |
| Xiaomi Buds 4 Pro | 45-50 minutes | 9 hours | 6 hours | 10 minutes = 5 hours of music |
| Redmi Buds 4 Active | 1.5 hours | 5 hours | 4 hours | No. |
The table shows that premium models (Buds 4 Pro) not only charge faster, but also hold the charge much longer.
Wireless charging: pros and cons
Many modern Xiaomi cases support wireless charging according to the Qi standard. It is convenient, but there are nuances that are worth knowing about.
Advantages:
- 🔌 No need to carry a cable - any Qi charge is enough.
- 🔌 Less wear on the connector USB-C case-case.
- 🔌 You can charge "on the go" by putting the case on the charging station.
Disadvantages:
- ⚠️ Charging speeds are 20-30% lower than cable.
- ⚠️ The case can heat up more, which negatively affects the battery.
- ⚠️ Accurate positioning of the case on the charging pad is required.
If you use wireless charging frequently, try not to leave the case on the court all night, the optimal - charge up to 80% and turn off.
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Wireless charging is convenient, but not suitable for emergencies. If you need to quickly restore the charge of the headphones, use a cable.
How to extend the life of the headphone battery
The battery in headphones is an expendable material, but if used correctly, it will last 3-5 years instead of the standard 1.5-2.
1. Avoid extreme temperatures
Do not leave your headphones in the sun (for example, in the car in the summer) or in the cold. The optimal storage temperature is +10..+25 ° C.
2. discharge and charge regularly
At least once every 2-3 months, let the battery run out (before it automatically shuts down), and then charge to 100%.
3. Store with a charge of 40-60%
If you don't plan on using your headphones for a long time (like on vacation), charge them up to 50% and turn them off.Full discharge or 100% charge when stored long is bad for the battery.
4. Use only certified accessories
Cheap cables and adapters can deliver unstable voltages, which accelerates battery degradation.
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If you notice that your headphones are running out faster, try resetting them to factory settings, and sometimes software errors lead to increased power consumption.
⚠️ Warning: If the case or headphones start to get very hot during charging (hotter than usual), immediately disconnect them from the network.