How to set up fast charging on Xiaomi: a complete guide with hidden chips

Have you bought a new Xiaomi smartphone with fast charging support, but the battery is charging too long? or noticed that the Fast Charging function is not working at full power? The problem may lie not only in the power supply - often users are simply unaware of the hidden MIUI settings that affect charging speed. In this article, we will discuss all the ways to activate and optimize fast charging on Xiaomi, Redmi and POCO devices, including little-known tricks for models with 120W, 210W and even 300W (as in Xiaomi 14 Ultra).

It's important to understand that fast charging on Xiaomi isn't just about connecting a powerful adapter. It analyzes the battery temperature, USB-C connector status, firmware version, and even the cable you use. For example, the Redmi Note 12 Pro+ with 120W support won't show top speed if you're using a cable from the old Redmi 9 — despite the compatible power supply. We'll tell you how to check each of these factors and what to do if the smartphone brakes charging for no apparent reason.

1. Compatibility check: what power supply is needed for your model

The first thing to do is to clarify which fast charging technology your smartphone supports.

• ⚡ Quick Charge 3.0/4.0+ — obsolete standard (up to the 27W), It is used in budget models (Redmi). 10A, POCO M4 Pro).
• ⚡ MI Turbo Charge – proprietary technology (33W–67W), It is available in Mi 11 Lite, Redmi Note 11 Pro.
• ⚡ HyperCharge - modern flagships (120W–210W), for example, Xiaomi 12T Pro, Redmi K60 Ultra.
• ⚡ Wireless Turbo Charging (up to Wireless Turbo Charging) 50W), Available on Xiaomi 13 Pro, Mix Fold 3.

To find out the exact power of your model, check:

1. The official site of Xiaomi (the "Factoristics" section of your device).
2. The inscription on the original power supply (e.g., MDY-12-EP is 120W).
3. Settings menu → About phone → Technical specifications (some firmware shows support for fast charging).

A critical mistake many users make is using a power supply that is less powerful than a smartphone. For example, if your POCO F5 Pro is designed for 67W and you connect charging to 18W, the system will automatically limit current, while the screen may display the words "Fast Charging", but the real speed will be 2-3 times lower.

2. Activation of fast charging in MIUI settings

Even if you have the right power supply, fast charging can be software-enabled. MIUI has two levels of settings:

1. Basic mode – included in the Settings menu → Battery → Battery settings → Fast charging.
2. Advanced mode - hidden in the MIUI laboratory (not available on all models).

Instructions for basic inclusion:

Open the settings → Battery

Slip to Battery Settings (cog icon in upper right corner)

Find the Fast Charging item and move the slider to the right

Restart your phone (recommended for changes)-->

If the "Fast Charging" item is not on the menu, it means:

• 🔋 Your model does not support technology (e.g. Redmi). A1 s 10W).
• 🔌 You are using an unoriginal cable/power supply.
• 📱 Installed custom firmware (for example, LineageOS), where the function is disabled.

3. Charging optimization: temperature regime and background processes

Battery temperature is a key factor in charging speed, and if the battery overheats above 40°C, MIUI automatically reduces current.

• 🌡️ Charge your phone in a cool room (optimally 20–25)°C).
• 📵 Remove the case (especially silicone or with metal inserts).
• ❄️ Do not use your smartphone while charging for games or videos (processor load heats the battery).

Also, the charging speed is inhibited by background processes.

1. Close all applications through the multitasking menu.
2. Turn off Wi-Fi, Bluetooth, and mobile data (if you don’t need them).
3. Activate Do Not Disturb (Settings → Notifications → Do Not Disturb).

💡

If your Xiaomi supports Reverse Charging, turn it off before connecting to the network, which uses up to 10% of the power to check your connected devices, even if you are not using it.

For advanced users, MIUI 14+ has a hidden background restriction setting that speeds up charging, to activate it:

adb shell settings put global hidden_api_policy 1

After that, in the Settings menu → Special features → Developer will appear item Limit background processes. Select the mode Without background processes and restart the phone.

4. problems with the cable and USB-C connector: how to diagnose

More than 30% of slow charging cases on Xiaomi are caused by a damaged cable or connector.

• 🔌 Charging is interrupted with a slight movement of the cable.
• 📉 The charging speed "jumps" (then) 18W, piece 5W).
• 🔥 Connector. USB-C Heats up more than usual.

How to check the cable:

1. Connect it to another device (like a laptop) and check the data rate. If the files are copied slowly, the cable is damaged.
2. Check the connector for bent contacts or oxidation (use a flashlight).
3. Try charging your phone with another cable (preferably original from Xiaomi with the 5A marking).

If the problem is the USB-C connector on the phone:

⚠️ Attention: Do not use alcohol or metal objects to clean the connector! This can damage the contacts. You should use a plastic toothpick and compressed air (keyboard cleaner). If the charge has not recovered after cleaning, you need to replace the connector at the service center.

5. Hidden MIUI settings for maximum charging speed

MIUI 12-14 firmware has undocumented settings that circumvent charging restrictions, which are designed for testing and can shorten battery life, but are sometimes necessary (e.g. when you need to charge your phone urgently before you travel).

Method 1: Disabling Adaptive Charging

By default, MIUI slows charging after 80% to extend battery life.

1. Go to Settings → Battery → Battery settings.
2. Find Adaptive Charging (or Optimized Charging) and turn it off.

Method 2: Enable the "Fast Charging +" mode (available on some models)

This mode unlocks maximum power, but increases heat. Activated via the engineering menu:

##2846579## → ProjectMenu → Battery → Fast Charge Config → Select the maximum value

💡

Use hidden settings only in extreme cases! Constant charging at maximum power reduces battery life by 15-20% after 6-12 months.

Method 3: Resetting battery settings

If the phone doesn’t see fast charging after updating the firmware, reset the battery settings:

1. Go to Settings → Applications → Application Management.
2. Slip on three dots in the upper right corner and select Reset app settings.
3. Confirm the action and restart the phone.

6. Fast charging on custom firmware (LineageOS, Pixel Experience)

If you have installed an alternative firmware (like LineageOS or ArrowOS), fast charging may not work due to the lack of Xiaomi drivers.

• 🔧 Install a kernel with support for Fast Charge (e.g. FrancoKernel for the Fast Charge). POCO F3).
• 📥 Download Quick Charge Enabler for Magisk.
• 🔄 Get back to the official one. MIUI (if charging is critical).

For firmware based on Android 13+, there is a universal method:

adb shell settings put global fast_charge_forced 1

This command compulsorily includes fast charging, but does not work on all devices.

⚠️ Attention: On custom firmware, the risk of overheating the battery is higher than on stock MIUI. Monitor the temperature through the app AIDA64 AccuBattery: If the battery is heated above 45°C, turn off the charging immediately!

7. Wireless fast charging: features of the setting

Xiaomi models with Wireless Turbo Charging support (such as the Xiaomi 13 Pro or Mix 4) require a special charging station. Conventional Qi charges (such as from Samsung) will work, but at speeds no higher than 10W.

To activate maximum power (30W–50W):

1. Use the original Xiaomi Mi Wireless Charging Pad (CPL04ZM model for 50W).
2. Place the phone strictly in the center of charging (a shift even 5 mm reduces power).
3. Turn off the case (especially with magnets or metal elements).
4. In the wireless charging settings (Settings → Battery → Wireless Charging), select Turbo mode.

If wireless charging is slow:

• 🔋 Check if there is another metal object (keys, coins) next to the phone).
• 📶 Make sure the charging station is connected to the power supply. 65W+ (common 5W from USB-PC port won't do).
• 🔄 Reboot your phone and charging station (unplug it for 30 seconds).

FAQ: Frequent questions about fast charging on Xiaomi