How to share charging from your phone to Xiaomi phone

Xiaomi’s modern smartphones have become powerful multimedia centers that consume a significant amount of energy during the day. Often, you have a situation where your device is discharged, and there is no wired charger at hand, and at this point comes to the rescue of the technology of reverse wireless charging, which allows you to turn your phone into a portable power bank for gadgets of friends.

This feature is especially relevant for owners of devices that support the Qi standard, since it does not require any additional cables or adapters. Simply attach a friend’s device to the back of your smartphone to start transmitting power. Mi and Redmi owners often do not realize that their device is capable of such “tricks”, and are looking for complex ways to solve a simple problem.

In this article, we will discuss in detail how to activate power distribution mode, which Xiaomi models support this option out of the box and what to do if the current transfer does not start. You will learn about the hidden settings of the system that can block the function, and get answers to frequent questions about the safety of the process.

Rechargeable technology in the Xiaomi ecosystem

The fundamental principle behind the power transfer between devices is electromagnetic induction. Xiaomi smartphones, equipped with the appropriate module, are able not only to receive current from the charging station, but also to generate an electromagnetic field to power other gadgets. This makes the phone a universal power source for wearable electronics and other mobile devices.

It's important to understand that the power transfer rate in the recharge mode is significantly lower than with a wired connection. Power usually ranges from 5 to 10 watts, which is comparable to standard power supplies of the past, which means that the process of filling a friend's battery will be slower than the usual charging of the phone itself from the grid.

The technology is particularly useful for recharging devices with small batteries, such as wireless headphones, fitness bracelets or smartwatches. It will take much longer to fully charge a smartphone with a capacious battery of 4000 mAh and higher, and the donor can lose a significant part of its charge.

It is worth noting that the efficiency of energy transmission depends directly on the density of the devices and the presence of covers. Thick protective cases, especially those containing metal elements or magnets, can completely block the induction current. In such cases, the transfer of energy will either not begin or will occur with critical losses and overheating.

List of compatible models and technical limitations

Not all smartphones of the popular brand have a built-in reversible charging module, which is available mainly in flagship lines and some mid-range models released in recent years. Before you try activation, you need to make sure that your device is technically able to act as an energy donor.

The main candidates are the Xiaomi Mi, Xiaomi (digital series) and Redmi K. Budget models are usually deprived of this option due to the lack of necessary equipment in the motherboard design.

The table below will help you quickly navigate the compatibility of popular models and their maximum return:

There is also a minimum charge limit for the donor, and MIUI or HyperOS will automatically turn off the power distribution function if the smartphone battery is under 30%, so that you don't be left completely out of touch at a critical moment.

Activation of the function through the control panel

The fastest and most convenient way to turn on power is to use the notification control center, which does not require deep immersion in settings and allows you to activate the function in a couple of seconds. The interface may vary slightly depending on the version of the shell, but the logic remains the same.

To start, unlock your Xiaomi screen and swipe from top to bottom to open the notification curtain. In some firmware versions, swipe twice to reveal the full list of fast buttons. Find the icon with the battery image and arrow, which is usually signed as "Reverse wireless charging."

After you press the icon should light up, which indicates that the module has been successfully activated. Now the phone is ready to work in emitter mode. If you can't find the right button in the standard set, try editing the quick action list by adding the missing item from the available one.

In some cases, the system may request a confirmation of action or a high power alert. Accept the terms to proceed. Now you can move to the physical connection of the devices. Make sure that both devices are unlocked or active for better control of the process.

⚠️ Warning: Do not leave the function on in your pocket or bag unattended.Accessal contact with metal objects can cause the battery to heat up and discharge.

Configure through the system settings menu

If the Quick Access Panel does not have the right button, you can activate the mode through the deep menu of the operating system settings, which is more reliable, since it is guaranteed to be present in the firmware of supported devices, even if the shortcut was removed by the user.

Open the main app menu and find the standard Settings section, and you'll need to go to the power and battery section, which can be simply called Battery on different versions of MIUI, or hidden inside the About Phone section in rare cases, but most often it's left alone.

Inside the battery menu, find the Reverse Wireless Charging switch. Activate it by moving the slider to the On position. The system can immediately alert you that the feature will automatically shut down when the charge is low or overheated.

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For quick access, add a battery widget to your desktop – it often contains a chargeback switch, which is more convenient than climbing into a deep menu.

After switching on, a special icon may appear in the status bar to inform you about the operation of the mode, which allows you to visually monitor the status of the function without distracting from the main tasks. If the icon appears but is not charging, check the density of the devices.

Energy transfer process and status control

Once activated, the devices must be positioned correctly relative to each other. The inductor centers on the back of smartphones usually match the brand logo or geometric center of the case. Accurate positioning is the key to successful current transfer.

Put the recipient phone (which you need to charge) with the back cover on the back of the donor phone (Xiaomi). The devices should fit tightly together. If done correctly, you will hear a characteristic beep, and the donor screen will show an animation of the charging process with a display of percentages or time.

During the process, both devices can get significantly warmer, which is a normal physical reaction when working with high currents and electromagnetic fields, but if the heating becomes excessive, the thermal protection system will force the process to stop the process to avoid damage to the components.

⚠️ Warning: Remove thick covers, holding rings and cards from the back cover before the procedure begins.

Watch the display on the screen. If charging is interrupted, try to slightly shift the top phone. Sometimes a shift of 1-2 millimeters is enough to make the coils match again. It is not recommended to use the phones while charging back, as active screens and processes can interfere with the stability of the connection.

Diagnosing problems and eliminating errors

Despite the simplicity of the technology, users often face a situation where charging does not start.The most common reason is the incompatibility of standards or lack of Qi support in the receiving device. Make sure that a friend's phone also supports wireless charging, otherwise power transfer is impossible.

Another common problem is software failure in the NFC module or charging, in which case a simple reboot of both devices helps, and it is also worth checking for system updates, as manufacturers often release patches that improve the stability of the power modules.

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If charging is not going, check if the receiving device supports Qi standard and remove all cases – this solves 90% of the problems.

If none of these actions worked, it may be the hardware or battery calibration that is the problem. In rare cases, resetting the network settings or completely resetting to factory settings (with a pre-backup) can eliminate software conflicts that block the function.

Remember, transmission efficiency drops with distance. Even the minimal gap between devices created by irregularities in the cover or protective glass can critically reduce the efficiency of the process. The ideal conditions are direct contact of glass surfaces.