Modern Xiaomi smartphones are increasingly equipped with inductive charging modules, which makes the process of replenishing energy as convenient as possible. You no longer need to look for a cable every time you need to recharge the device in the workplace or in the car.
However, despite the simplicity of the technology, many owners face problems: the phone does not charge, warms up or the process is too slow.This is often due to the wrong positioning of the device or the use of inappropriate accessories. In this article, we will examine all the nuances of working with Xiaomi wireless charging and help avoid common mistakes.
Understanding the induction will allow you to extend the battery life of your smartphone, use it properly to reduce heat and ensure a stable power transfer rate, and see which models support this function and how to set them up for maximum efficiency.
Supported models and compatibility
The first step is to check your device’s compatibility with wireless charging technology, which is not all Xiaomi smartphones have built-in Qi receiver, which is required for external power banks and stations, and is usually the feature of flagship models of the Mi and Xiaomi series, starting in 2018.
To determine the presence of the module, you can look at the specifications on the official website or in the settings menu. Often in the Settings → About the phone → All the characteristics indicate support for Qi. Also, the presence of a glass back is an indirect, but not guaranteed, sign of support for the technology.
Below is a table of popular models indicating the type of supported charging:
| Smartphone model | Maximum power (W) | Type of reverse charge |
|---|---|---|
| Xiaomi Mi 9 / Mi 9 Pro | 20 / 30 | There is. |
| Xiaomi 12 / 12 Pro | 50 | There is. |
| Xiaomi 13 Ultra | 50 | There is. |
| Redmi Note 12 Pro | No. | No. |
It is important to consider that even if the model supports wireless charging, the process speed can vary greatly. Flagships often support fast wireless charging, but only paired with the original power supply and cable. Budget models, even with a module, can charge slowly, limited to the standard 5-10 watts.
Equipment and accessories required
To make the technology work, you’ll need not only a compatible smartphone, but also the right charging station. The market offers a variety of options, from cheap Chinese counterparts to Xiaomi branded accessories, the difference between them lies not only in the price, but also in the availability of overheating and overload protection systems.
Original chargers like the Xiaomi Mi Wireless Charging Stand often have active cooling.The built-in fan helps remove heat from the smartphone body during intense charging.This is critical to keeping the lithium-ion battery healthy, as high temperature is its main enemy.
⚠️ WARNING: Using cheap uncertified charging panels without temperature control can cause the battery to bloat or the power controller to fail.
Also note the power supply that connects to the charging station. To activate fast charging modes of 20W, 30W and higher, the adapter must support the appropriate protocols (for example, Quick Charge or proprietary protocols Xiaomi). A conventional 5V 1Ampere unit will not be able to provide enough power.
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Use a cable that came with a charging station, or a quality analog with a wire cross section of at least 1 mm to minimize energy loss.
Step-by-step instructions: how to start charging
The process of starting charging is as simple as possible and does not require complex software configuration. However, there are positioning nuances that affect the efficiency of the process. The inductive coil in a smartphone is small, and its center must coincide with the center of the coil in the charger.
Follow the following steps to start charging:
- 🔌 Connect the charging station to the power source with a suitable adapter.
- 📱 Remove thick cases from your phone, especially those containing metallic elements or magnets.
- 📲 Place the smartphone in the center part of the back panel exactly on the center of the platform.
- ⚡ Wait for the sound signal or vibration, as well as the appearance of appropriate animation on the screen.
Once the light goes on, the device will start consuming power. In some cases, the system may suggest that you turn on the "Accelerated Charging" or "Night Mode" mode. The first option ignores the heating restrictions for maximum speed, the second one reduces speed and turns off the screen for quiet operation at night.
☑️ Checking the charging readiness
If the smartphone is flat but not charging, try to move it up or down slightly. Sometimes even millimeter shift prevents the coils from joining together. You can visually determine the center of the coil by the logo on the charger or special markings.
Features of fast and reverse charging
Xiaomi’s technology not only allows you to charge your phone quickly, but also to use it as a powerbank for other gadgets. Reverse charging is available on many flagships and allows you to transfer power to headphones, watches or another smartphone.
To enable reverse charging, go to Settings → Battery and activate “Reverse wireless charging.” After that, bring the charger with the back side to the center of the back of your phone, make sure that the devices are tightly pressed against each other.
⚠️ Warning: Do not leave your phone in reverse charging mode unattended for a long time, as this leads to rapid discharge of the main device and heating.
Reversible power transmission is usually slow (about 5-10 watts), so it is more suitable for emergency charging than for a full cycle. Rapid wireless charging, in turn, requires strict compliance with the temperature regime. If the phone is heated above 40 degrees, the system will automatically reduce the charge current for safety.
Why is reverse charging slow to work?
Addressing common problems
Despite the technology's fine-tuning, users may experience a charging interruption or no charge at all. Often the problem lies in foreign objects between the phone and the platform. Even a thin layer of metal, such as a ring-holder on a case, can block the magnetic field.
List of frequent causes of failures:
- 🛑 The presence of a metal plate for a magnetic holder in the car on the back cover.
- 🛑 Too thick protective cover (more than a full cover) 3-4 mm).
- 🛑 Shifting the smartphone relative to the center of the coil.
- 🛑 Use of an unoriginal or weak power supply for the station itself.
If the phone is charging but it's constantly shutting down and turning on again, check the temperature of the case. When it's overheating, the thermal protection goes off. In this case, remove the case, remove the phone from charging for a couple of minutes and let it cool. Also try to wipe the back panel and the surface of the charger from contamination.
In rare cases, the problem can be software-based: Rebooting the device often helps to reset the power controller errors. If nothing helps, the wireless charging module itself inside the smartphone may be faulty, which requires contacting a service center.
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Most wireless charging problems are solved by removing the case or centering the phone on the platform.
Safety and extension of battery life
Wireless charging is inherently less efficient than wired charging, as some of the energy is dissipated as heat. Heating is a major factor in the degradation of lithium-ion batteries. Constant charging at high-power stations without cooling can reduce the overall battery life faster than using cable.
To minimize harm, it is recommended not to use the phone actively while wirelessly charging. Running heavy apps or games will put additional strain on the processor, which, combined with the heat from charging, can lead to critical overheating.
You should also avoid overnight charging at high-powered stations if the device does not have an intelligent control algorithm. Some modern Xiaomi models are able to analyze user habits and suspend charging at 80%, completing the process only by the time you wake up, a feature that can be found in the battery settings called Optimized Night Charging.