Owners of popular budget TWS-Headsets are often asked about the speed of energy recovery, especially in situations where the device is discharged at the most inopportune moment.The charging time of Xiaomi Redmi AirDots depends on the capacity of the built-in battery and the characteristics of the charging case itself. A standard full recovery cycle takes 40 to 60 minutes for the headphones themselves, if they are placed in a case that already has a sufficient charge.
It is worth considering that the full charging cycle of the case itself takes longer - usually about 1.5-2 hours when connected via a Micro-USB cable. If you use powerful fast charging adapters from smartphones, the process can go faster, but there is a risk of overheating of lithium polymer cells, which is undesirable for the durability of the device. Indicators on the front panel of the case will help you control the status: red signals the process, and white (or quenching the indicator) - about the full charge.
It's important to understand the difference between running time and charging time, because many users confuse these metrics. 4 an hour of listening to music, and the case is able to recharge the headphones 2-3 So the total battery life is about 12-16 This is a great indicator for such a price segment.
Technical characteristics of AirDots batteries
Xiaomi Redmi AirDots is powered by compact lithium-polymer batteries, each headphone’s battery capacity is 40mAh, which is standard for entry-level True Wireless Stereo headsets. The charge case features a 300mAh battery, allowing it to act as a portable Power Bank for your headphones.
The energy recovery process is controlled by an integrated protection board that prevents overcharging and deep discharge.The input parameters for charging the case are 5V and 0.5A (500 mA). The use of chargers with currents above 1A (for example, 2A from modern smartphones) is formally possible, but is not recommended by manufacturers, as it can lead to a shorter life of the batteries.
Unlike newer models such as Redmi AirDots 2 or Xiaomi Mi True Wireless Earbuds Basic 2, the first version of AirDots does not support Qi fast charging technology.
- 🔋 Headphone battery capacity: 40 mAh (each)
- 🔋 Case battery capacity: 300 mAh
- 🔋 Input voltage: 5V ⎓ 500mA
- 🔋 Type of connector: Micro-USB
⚠️ Warning: Do not leave the case on charge all night or for several days in a row, even if the protection system must turn off the current.
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Use a cable that comes with a kit, or a quality analog with a cross section corresponding to the current 1A to avoid energy loss and overheating.
Charging time for headphones and case
Recharge rate is a critical parameter for those who actively use gadgets during the day. It takes an average of 40-50 minutes to fully charge the headphones themselves, which is the time it takes to stop the indicator on the case burning red, which means reaching 100% capacity.
The case itself takes longer to charge, and if the battery is completely discharged (the indicators do not light up when opened), it will take 1.5 to 2 hours to fully recover, and it is important to monitor the indication: a flashing red LED indicates that an active charging process is underway.
There's a nuance about deep discharge, and if you haven't used your headphones in months, the battery might have gone into sleep mode. 10-15 The charging minutes may not show any results on the indicators, you just leave the device on the network, and after a while the controller will wake the cells.
Indication and charging statuses
Understanding LED signals is key to controlling the device. The front panel of Xiaomi Redmi AirDots has one LED indicator that changes color and mode depending on the state of the system. Red light means that charging is underway, and the absence of glow when the cable is connected indicates full charge.
When you remove the headphones from the case or place them inside, the indicators on the headphones themselves can also give signals, but the main control is through the case. If the case indicator flashes white when you open the lid (without connecting to the network), this means low battery power and the need for an urgent connection to the power source.
The table below shows the main states of the indicator for rapid diagnosis:
| Status of the indicator | Meaning | Action. |
|---|---|---|
| Burning red. | Charging's coming. | Waiting for completion |
| It does not burn (with the cable connected) | Charge 100% | You can turn it off. |
| Flashes white (2 times) | Low case charge | Charge urgently |
| Blinks red and white | Error or conjugation | Recheck the connection |
⚠️ If the indicator is constantly lit red, even after 3-4 Charging hours, possibly battery failure or cable damage.
Proper First Charging and Activation
Many users are wondering if new Redmi AirDots should be charged before first use. Modern lithium polymer batteries do not require "rocking" like old nickel batteries, but the factory charge is often about 50-60%.
The activation process happens automatically when you remove the headphones from the case, and if the headphones are in the case and it's closed, they're in deep sleep and they don't consume energy, which is why it's important to keep them in the case when you're not using them.
☑️ First charging of new headphones
If you buy a device that has been in storage for a long time, you have to charge it before you turn it on. Prolonged storage in a discharged state is detrimental to the chemistry of the battery. Just put a case with nested headphones on charge for 1 hour to activate the internal circuits.
Factors affecting charging speed
There are several variables that can significantly change the manufacturer's stated charging time, most notably the Micro-USB cable. Cheap cables bundled with some accessories often have high resistance, which slows current and increases charging time to 3 hours.
At low temperatures (below +10°C), the chemical reactions inside the battery slow down, and the charge controller artificially limits current for safety. Conversely, in high heat, charging can go faster, but this critically harms the battery life.
Power adapter power is another factor: although the input is limited to 500 mA, the use of a lower current adapter (e.g. 100 mA from the old one) USB-The computer port will result in a very long charge. USB-port of the computer or adapter on 1A.
Why does the case take so long to charge?
Tips for extending battery life
To keep your Xiaomi Redmi AirDots lasting, you need to follow simple rules of operation. Don't discharge the device "to zero" regularly. Try to put the case on charge when the indicator starts flashing white, signaling a low energy level.
Avoid overheating. Do not leave a case with headphones in direct sunlight, such as on a car torpedo in the summer. High temperatures irreversibly destroy the structure of the lithium battery, reducing its capacity.
If you plan to not use headphones for a long time (for example, going on vacation), charge them to about the end of the day. 60-70% and turn off (put in the case, but do not close tightly, or store separately if the design allows, although AirDots is better kept in a closed case with a medium charge). 2-3 Check the charge for a month and recharge the device.
- 🌡️ Do not use headphones in extreme temperatures.
- 🔌 Disconnect from the network immediately after the white indicator lights up.
- 🧹 Regularly clean contacts in the case of oxides
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Compliance with the temperature regime and the use of high-quality cable are the main factors for the long life of your headphones.