How to turn off fast charging on Xiaomi: all the ways and nuances

Fast charging in Xiaomi smartphones has become the standard for most models, from the budget Redmi to the flagship Mi and POCO. However, not all users are suitable for this mode: someone notices the device overheating, others want to extend the battery life, and still others simply prefer slow charging at night. In this article, we will discuss how to completely disable fast charging on Xiaomi, what methods exist for different versions of MIUI, and what happens to the phone after deactivation of this feature.

It’s important to understand that the manufacturer doesn’t always provide a direct option to turn off fast charging in settings. In some cases, you’ll need to use hidden menus, third-party apps, or even physical manipulation of the charger. We’ll look at all the available methods, from official to alternative, and explain the risks and benefits of each.

Why users want to turn off fast charging on Xiaomi

Despite the obvious benefits (a chargeable smartphone in 30-60 minutes), fast charging has a downside, and here are the main reasons why Xiaomi owners are looking for a way to deactivate it:

• 🔥 Overheating of the device. At high currents, the phone's body can heat up to 40-45°C, which is uncomfortable when used during charging.
• 📉 Battery degradation: Lithium-ion batteries wear out faster with frequent fast-charging cycles, especially if the phone is connected to the grid constantly (for example, at night).
• ⚡ In regions with frequent power surges, fast charging can cause failures or even damage to the power controller.
• 🛌 Night charging. Many people prefer to charge their phones slowly. 6-8 hours to reduce battery load.
• 🔌 Incompatible chargers: Cheap or non-original adapters may conflict with Qualcomm Quick Charge or Xiaomi Turbo Charge.

Xiaomi doesn’t advertise the possibility of turning off fast charging, as it contradicts the marketing strategy (fast charging is one of the key selling arguments), but in some MIUI firmware, the option is still present, and for other cases there are workarounds.

Official method: MIUI settings (for supported models)

Some Xiaomi smartphones (mostly the flagship Mi 10/11/12 series, Redmi K40/K50, POCO F3/F4) allow you to turn off fast charging directly in the settings menu.

1. Open the Settings app.
2. Go to Battery and Performance (or Battery in older versions of MIUI).
3. Select Battery Settings → Charging Mode (or Quick Charging).
4. Deactivate the switch Enable Fast Charging or select Standard Charging mode.

If there is no such item, then your model does not support software shutdown, in which case one of the alternative methods described below will help.

⚠️ Note: On some devices after the update MIUI The option to disable fast charging may disappear. If you've seen this option before but now it's not, try resetting the battery settings in Settings. → Annexes → Application management → Three points. → Reset the settings.

Method 2: Use the engineering menu (#4636##)

If MIUI does not have an option to turn off fast charging, you can try activating the hidden engineering menu, which works on most Xiaomi smartphones, but requires caution – wrong actions can disrupt the device.

Instructions:

1. Open the Phone app.
2. Enter the combination ##4636## (some models may require ##6484## for the battery menu).
3. In the menu that opens, select Battery Information (or Battery Information).
4. Scroll down and find Fast charge or Quick charge.
5. Click on it and select Disable.

If there is no Fast charge, try another way:

• In the engineering menu, select Hardware Testing.
• Go to Charger or Power.
• Find Charge Control and set the Standard (5W) value.

💡

If the engineering menu doesn’t open, check if it’s blocked in your version of MIUI. On some firmware (e.g. global ones), the code may not work.

⚠️ Warning: Changes to the engineering menu can cause the charging to run unstable or even damage the power controller.Do not change other settings unless you are sure of their purpose. After turning off fast charging via the engineering menu, the phone can charge more slowly even from the original charger.

Method 3: Disconnect via ADB (for advanced users)

If none of the previous methods worked, you can use Android Debug Bridge (ADB), a tool for low-level management of Android devices, which requires connecting the phone to a computer and basic command line knowledge.

Step-by-step:

1. Download and install ADB Tools on your computer.
2. Turn on Developer Mode on your phone: Settings → About Phone → MIUI version (click 7 times).
3. Activate Debugging by USB in Settings → Additional → For developers.
4. Connect the phone to the PC and type in the command line:

adb shell


settings put global fast_charge_enabled 0

Once you have completed the command, restart the device. Rapid charging will be disabled until the next settings reset or firmware update.

To return fast charging, use the same command, but with a value of 1:

settings put global fast_charge_enabled 1

Install ADB Tools on PC| Enable developer mode on Xiaomi| Activate debugging over USB| Connect phone with original cable | Check if the device is recognized by the adb device command

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⚠️ Note: Not all versions MIUI Some devices may have a setting not found error when it runs, in which case try an alternative method to change the build.prop file (requires root rights).

Method 4: Physical methods (charging from another adapter)

If the software methods did not help, you can trick the system using a charger with less power. Xiaomi smartphones automatically determine the supported charging current, and if you connect the adapter to 5W (standard USB), the phone will charge in normal mode.

Options:

• 🔌 Use charging from an old smartphone (for example, on the 5V/1A or 5V/2A).
• 📱 Connect the phone to USB-port of a computer or laptop (usually issued by the 0.5A-1A).
• 🔋 Buy a fixed power adapter 5W (For example, from Nokia or Samsung early models).
• 🔄 Use wireless charging (if supported) – it is usually slower than wired charging.

Importantly, some Xiaomi models (like the Redmi Note 11 Pro+) ignore the limitations of the charger and still activate fast charging if the power controller determines compatibility, in which case only a software shutdown will help.

What to do if nothing helps: radical measures

If none of the above methods work, the more radical (and risky) methods remain:

• 🛠️ Custom Recavery firmware (TWRP) and editing the build.prop file. Requires unlocking the bootloader and may result in loss of warranty.
• 🔧 Replacing the power controller with a power-limited counterpart (such as another Xiaomi model) is a complex procedure that a specialist must perform.
• 📱 Use of magnetic USB-These cables artificially reduce the charging power to 5W.
• 🔋 Forced charge limit to 80% (in settings) MIUI Optimized charging option that slows down after 80%).

Before using these methods, assess the risks:

• Loss of warranty when unlocking the loader.
• Possible failure of the power controller with incorrect manipulations.
• Unstable operation of the device after changing system files.

💡

If you are not sure about your technical skills, you should contact the Xiaomi service center. Some models (for example, Xiaomi 12S Ultra) have hardware locking fast charging, and it is impossible to turn it off without special equipment.

Consequences of turning off fast charging: pros and cons

Before making a decision, weigh the pros and cons:

If you use your phone intensively and need to recharge quickly during the day, turning it off can be a inconvenience, but for those who charge their smartphone at night or want to maximize battery life, switching to standard charging will be worth it.

FAQ: Frequent questions about turning off fast charging on Xiaomi