Support for wireless charging in smartphones Xiaomi Redmi

In today’s tech world, the ability to charge a smartphone without cable has become the de facto standard for flagship devices. However, when it comes to Xiaomi’s brand and its sub-brand Redmi, the situation is not as straightforward as it may seem. Users often confuse support for fast wired charging with wireless technology, leading to mistaken expectations when buying.

Most Redmi models, even in the high-end series, have traditionally lacked an inductive charging module, a strategy that is driven by the company’s strategy of offering maximum performance and charging speed over cable at an affordable price, while sacrificing wireless options. However, there are exceptions, and it is important to clearly understand which devices have this feature.

In this article, we will discuss in detail the list of compatible devices, the technical features of implementing the technology in the Xiaomi ecosystem and ways to circumvent the restrictions if your gadget does not support the Qi standard out of the box.

The Real Status: Redmi vs Xiaomi

The first thing to learn when choosing a device that supports wireless charging is a clear distinction between the main brand Xiaomi and the sub-brand Redmi. the flagship line Mi (now Xiaomi) and Xiaomi Ultra almost always equipped with a coil of induction. At the same time, the budget and mid-budget series Redmi Note, Redmi K and Redmi Number are most often deprived of this feature.

Engineers argue that the lack of modules in low-cost devices is necessary to save internal space and reduce cost. Installation of the coil requires redesigning the rear cover (often glass) and placing additional components, which does not always fit into the pricing policy of Redmi.

⚠️ Warning: Having a glass back cover on a Redmi smartphone does not guarantee wireless charging support.The glass is necessary for the signal to pass, but the energy receiver itself must be installed inside the housing separately.

There's a common misconception that if the phone is on the charging pad and warms up, it charges. In fact, it might just be heating from the proximity of the power bank or station's active coil, but the battery doesn't get current. You can only check for the function through the specifications of the model.

πŸ“Š Does your Redmi smartphone have wireless charging?
Yes, there is.
No, but I would.
No, you don't.
I don't know how to check.

Full list of Redmi models with wireless charging

The list of Redmi smartphones that officially support wireless charging technology is extremely small. In fact, there is only one specific model that was an exception to the rule and received full support for the Qi standard and the proprietary Xiaomi standard.

We are talking about the Redmi K50 Pro series (known globally as Xiaomi 12T Pro). This device is one of the few representatives of the sub-brand to receive a full-fledged induction coil with a capacity of up to 30 watts. However, it is worth noting that even in this case, the charging speed is significantly inferior to the wired, which in this model reaches 120 watts.

  • πŸ“± Redmi K50 Pro / Xiaomi 12T Pro is the only Redmi model with full support up to 30 watts.
  • πŸ”‹ Xiaomi Mi 10 Ultra is formally a Xiaomi brand, but is often associated with the top specs available in Redmi (50W).
  • ⚑ Xiaomi 13/14 Pro – flagships of the main brand, where the technology is implemented most efficiently.

All other models, including the popular Redmi Note 10 Pro, Redmi Note 11 Pro+, Redmi Note 12/13 series and flagship Redmi K60/K70 (in Chinese versions), lack built-in wireless power receiver.

Why is the Redmi K60 Ultra not wirelessly charged?
In the Redmi K60 Ultra, despite the flagship processor, engineers sacrificed wireless charging for the installation of a more powerful vibrator and improved cooling system, as well as to preserve the thin body.

Technical features and charging standards

If you do own a rare Redmi model with wireless charging support, or are planning to buy Xiaomi’s core brand, it’s important to understand the difference in standards.The devices support the universal Qi protocol, which allows you to charge from any third-party sites, whether Baseus, Anker or car holders.

However, top speeds are only achieved with Xiaomi’s original accessories.The company uses a proprietary protocol that allows power transmission of up to 50 watts and even 80 watts in top-end models. When using third-party charging, power is usually limited to the 10-15 watt standard.

The technology is based on electromagnetic induction, and inside the back of the smartphone is a copper coil that creates a magnetic field when it interacts with the base, and it's important that the centers of the coils match, otherwise the efficiency of the energy transfer drops dramatically and the heat increases.

Model of the deviceSupport for QiMax. Power (Original)Max. Power (Third-party)
Redmi K50 ProYes.30 Watts.10-15 W.
Redmi Note 12 ProNo.--
Xiaomi 13 ProYes.50 W.15 W.
Redmi K60No.--

Reversible wireless charging is also worth mentioning: Some Xiaomi models can charge other devices (headphones, watches) from their battery, working as a power bank. In the Redmi line, this feature is almost not found due to battery capacity limitations and the lack of a corresponding controller.

πŸ’‘

For maximum wireless charging speeds, be sure to use the original Xiaomi docking station, as third-party charging will limit power to 10-15 watts.

How to check for functionality in MIUI and HyperOS settings

If you have suspicions that your Redmi smartphone may support wireless charging but you're not sure, the easiest way to check this is software. MIUI The new HyperOS has a built-in diagnostics that displays charging status.

First, connect your smartphone to any wireless charging pad, and if the device is compatible, the charging animation will appear on the screen, and the zipper icon will light up in the status bar, and if the phone is just lying on the stand, but the screen does not light up and the charging sound is missing, then the hardware module is missing.

A deeper test involves using an engineering menu or special iron diagnostics app. You can use the code ##6484##, which opens the CIT menu. In this menu, you can find hardware tests, although a direct Wireless Charging test may not be available if the module is not defined by the system.

  • πŸ” Put your phone on a known working wireless charging.
  • πŸ”Š Turn on the sound to hear the characteristic start signal charging.
  • πŸ“² Check the lock screen for battery percentage animation.

⚠️ Warning: Don't try to disassemble your smartphone for a coil unless you have repair skills.No response to the charger in 99% of cases means the module is physically missing, not broken.

Also worth a look at Settings β†’ About Phone β†’ All specs. If wireless charging is supported, it often (but not always) specifies the appropriate standard or battery capacity for charging, but the most reliable source remains the manufacturer’s official website or specification on the box.

πŸ’‘

Use the Mi Remote app or standard sound analyzer to try to pick up a high-frequency squeak from a running coil by holding your ear to the back cover of the phone on over active charging.

Alternative solutions: how to add wireless charging

For owners of Redmi smartphones, who lack built-in functionality but are eager to use the convenience of wireless charging, there is a proven solution: it is about external receivers (receivers) that connect through a USB Type-C connector.

So this receiver is a thin plate with a coil and a contact, and it's inserted into the charging port, and the body itself is hidden under the smartphone case, and when you put the phone on the wireless panel, the receiver reads the signal and transmits the energy through the Type-C port to the battery.

This method has its pros and cons. On the one hand, you get the functionality you want for the minimum amount of money, on the other hand, the charging port is always busy, which prevents you from using the phone while charging or connecting it to your computer to transfer data without turning off the receiver.

β˜‘οΈ Selection of external receiver

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When choosing an external module, pay attention to the thickness of the plate. Too thick a receiver can cause the rear cover of the Redmi smartphone to not fit tightly to the charging station, which will cause overheating and interruption of charging. It is also important that the case is not too thick, otherwise the induction will not break the distance.

Problems and solutions

Even with a compatible device or external receiver, users can run into problems, the most common being intermittent charging, often caused by a thick protective case, metal inserts on the body, or magnetic rings for car holders.

Metal blocks the electromagnetic field and can cause dangerous heating. If you use a magnetic ring (MagSafe-compatible) on the back of the Redmi, wireless charging will not work until you remove the ring.

Another problem is overheating. Wireless charging is less efficient than wired charging, and some of the energy is lost as heat. In densely-composed Redmi smartphones, this can cause trottling (decreased performance) during charging. If the phone is heated, the system can pause charging until cooling down.

  • 🌑️ Remove a thick case if charging is slow or interrupted.
  • 🧲 Remove magnetic rings and cards from the back cover.
  • πŸ”Œ Make sure the charging station power supply is sufficiently powerful (minimum) 18-20 Watt).
Why does your phone warm up when charging wirelessly?
Heating is a physical process of losing energy when transmitted through an electromagnetic field. In Redmi smartphones that are not optimized for this, the heat sink can be worse than in Xiaomi flagships with graphene plates.
Can the battery be burned by wireless charging?
The current power controllers in Redmi and Xiaomi have protection against overheating and overcharging. The risk is minimal when using certified accessories, but constant heating above 40 degrees accelerates the degradation of the lithium polymer battery.
Does wireless charging work through the screen glass?
Yes, tempered glass doesn't prevent the magnetic field from passing. However, if there's a metal mesh on the screen (rarely) or a thick layer of metal in the case, charging won't work. In Redmi, the back cover of plastic also misses the signal, but there's no coil inside.
Is there a difference between Qi and Xiaomi Wireless Charge?
Qi is a universal standard that works with all devices, but at low speeds (up to 15W).The Xiaomi protocol is proprietary technology that allows you to reach speeds of 30-50W, but only with the original chargers of the brand.
How to increase the speed of wireless charging?
Use the original Xiaomi station, remove the case, make sure the phone is perfectly centered and cool the device before starting the process. Enable Do Not Disturb mode so that the screen does not light up from notifications.