Many users who buy modern smartphones are used to the convenience of no wires and expect to see wireless charging even in budget models. However, when faced with the Xiaomi Redmi 9T, owners often wonder how to activate this option in the settings or why it does not work. Unfortunately, the answer to this question lies not in the software, but in the hardware of the device.
The Redmi 9T is a low-end smartphone segment where manufacturers have to compromise to lower the final cost of the product. Xiaomi engineers have equipped this model with a powerful 6,000mAh battery, but excluded the induction charging module from the housing design, which means that the software button or hidden menu to activate wireless power transmission in this device physically does not exist.
However, there are ways to get around this limitation by using special accessories. In this article, we will detail the technical reasons for the lack of function, consider the options of adapters and give tips on the safe use of alternative charging methods for your gadget.
Technical specifications and absence of Qi module
The main reason you can't find a wireless charging setup is because there's no appropriate equipment inside the case.The Qi standard (pronounced "chi") requires a special copper inductance coil and power controller that integrate directly into the motherboard or connect via a separate connector. In the Redmi 9T specification, these components are simply not provided by the manufacturer.
The lack of a wireless charging module allows manufacturers to reduce the cost of the device and make the case thinner, which is critical when installing a battery with increased capacity. If engineers added an induction receiver, this would require redesigning the entire internal layout, which would lead to higher cost of the model or reduce the usable volume of the battery.
It is important to understand the difference between support for fast wired charging and wireless. Xiaomi Redmi 9T supports Quick Charge 3.0 technology with a power of up to 18 watts, which allows you to quickly replenish energy through a USB Type-C cable. However, the speed of energy transfer through the air even in expensive flagships is often lower than over the wire, so the lack of wireless option in the budget is the norm, not a defect.
⚠️ Warning: Attempts to software “enable” a non-existent function through an engineering menu or third-party applications can lead to unstable system operation or complete device failure.
Users often confuse the presence of NFC-a module with wireless charging capability. 9T NFC It is also not available in most sales regions, but even if it were, it does not have enough power to charge the battery, as it is not enough to charge the battery. NFC It is designed to exchange small amounts of data over short distances.
Alternative solution: use of adapter receivers
If wireless charging is critical to you, the only solution is to use external receivers, which are thin plates with an integrated coil that connect to your smartphone's USB Type-C port, and the way it works is that the adapter takes power from the charger and transfers it directly to the battery via the connector.
To install this solution, you will need to purchase a compatible receiver standard Qi. The market offers many options, but it is important to pay attention to the thickness of the device and current. For the Redmi 9T, models that support a current of at least 1A will be optimal, so that the charging process does not take too long.
- 🔌 Connection: The adapter is inserted into the charging port, and the smartphone itself is placed on the wireless panel.
- 📏 Thickness: The receiver adds a few millimeters to the thickness of the body, which may require a more spacious case.
- ⚡ Speed: Charging speed through the adapter is usually limited 5-10 What is slower than regular wired charging.
When using an adapter, the back cover of the smartphone should be removed or replaced with a special one if the receiver is glued inside. In the case of the Redmi 9T, overhead receivers are more often used, which are simply inserted into the port and hang from the bottom edge, or thin plates hiding under the cover.
How to properly install the receiver under the cover?
Instructions for the safe use of external receivers
Using third-party charging accessories always carries certain risks, so it is important to observe safety precautions. Incorrect operation can lead to overheating of the device or damage to the USB Type-C port. Before using it, carefully read the instructions for the purchased adapter.
The first step should always be to check the port condition. If there is dust or pile in the Redmi 9T connector, they must be carefully removed before the adapter is connected.
☑️ Checking before using the adapter
When charging, the smartphone can heat up more than usual, due to the double conversion of energy: first in the charging panel, then in the receiver and finally in the battery, it is recommended to remove dense protective covers during the process to ensure heat sink.
| Parameter | Standard charging (Cable) | Through the Qi adapter | Wireless panel (Flagships) |
|---|---|---|---|
| Power | 18 W. | 5-10 W. | 15-30 W. |
| Efficiency | High (~90%) | Average (~70%) | Average (~75%) |
| Port depreciation | Natural. | Continuous load | Absent. |
| Heating. | Moderate. | High-pitched | High-pitched |
Don’t leave a device with an adapter connected unattended for long periods, especially on a soft surface (sofa, bed) where heat removal is difficult. Although modern power controllers at Xiaomi have overheating protection, additional heat from the receiver can accelerate battery degradation.
Battery Optimization in MIUI
Since there is no built-in wireless charging, it is important to make the most of the wired connectivity resources available.The MIUI operating system that runs Redmi 9T offers advanced power management tools that will help extend battery life.
Go to Settings → Battery to activate power saving modes. The system automatically limits the background activity of applications, which is especially useful if you often forget to charge your phone and use it to the last percent.
To extend the life of the Redmi 9T lithium polymer battery, try not to drain the device below 15% or keep it on charge at 100%. The optimal range for a long battery life is from 20% to 80%.
⚠️ WARNING: Using cheap uncertified adapters can lead to voltage surges that will damage the motherboard's power controller.
In the Developer Options settings, you can find the “Do not sleep” option when you connect your charger, which can be useful if you use your smartphone as a navigator or a display board while charging, but increases the heat.
💡
Use the original cable or certified 3A-labeled analogues to achieve a top charging speed of 18W on the Redmi 9T.
Comparison with Xiaomi models that have wireless charging
To understand what the owner of the Redmi 9T lacks, it is worth looking at the company’s older models. Xiaomi Mi and Xiaomi 11/12/13/14 flagship series often feature full-fledged wireless and even reverse charging modules. The price difference between these devices and Redmi is huge, due to the set of technologies.
In expensive models, a special glass or ceramic back panel is used to allow electromagnetic field through. In the Redmi 9T, the back cover is also made of plastic or glass, but there is no electronics under it to receive the signal, and adding such a feature would require changing the entire power architecture.
- 📱 Flagships: Support up to 50W wireless charging and reverse charging of other devices.
- 💰 Budget workers: Focus on battery capacity and screen, sacrificing "premium" chips.
- 🔋 Efficiency: Wired charging is always more efficient and faster than wireless charging at any price point.
If you’re critical to being able to charge your phone wirelessly, consider the Xiaomi Mi or Xiaomi T series (formerly the Mi T), where this feature is standard. However, for most users, the 18W wired charging speed available in the Redmi 9T is quite sufficient for everyday use.
💡
The lack of wireless charging in the Redmi 9T is a conscious engineering solution to reduce the price, not a software bug.