How to disable fast charging on Xiaomi smartphones: all the ways and consequences

Fast charging has become standard on most Xiaomi smartphones, but it doesn’t always benefit the battery. Many users notice that when you use turbo charging, the battery starts to run out faster after a year or a year and a half of use. In some cases, turning off this feature can extend battery life by 20-30%, especially if you use the phone in extreme conditions (for example, high temperatures or around the clock).

In this article, we’ll look at all the possible ways to turn off fast charging on Xiaomi, Redmi and POCO smartphones, from standard MIUI settings to hidden engineering menus. You’ll also learn when it’s really necessary and when to leave it as it is. It’s important to understand that the procedure differs depending on the model and firmware version, so we’ll look at universal methods and nuances for specific devices.

Why you might need to turn off fast charging

The main reason is the extended battery life: Lithium-ion and lithium-polymer batteries used in Xiaomi smartphones degrade faster at high charging currents. Rapid charging raises the temperature of the battery, which speeds up the chemical processes inside it. According to research, the constant use of fast charging can reduce battery life by 15-25% after 300-400 cycles.

Other situations where you should consider disconnecting:

• 🔥 The phone gets very hot during charging (above 40)°C).
• 🔋 The battery is swelling or rapidly discharged (less than 50% of the original capacity).
• ⚡ You are using non-original chargers or low quality cables.
• 🏠 The phone often stays on charge all night long.
• 📱 You have an old model (like the Redmi Note 4 or Mi 5) where fast charging is inefficient.

But there’s a downside: Turning off fast charging increases the full charge time from 1-1.5 hours to 3-4 hours. If you’re used to recharging your phone in 20-30 minutes, this option won’t work for you. It’s also worth considering that on new flagships (such as Xiaomi 14 or Redmi K70), the system itself adjusts the charging current depending on temperature, so manually turning off may not give a noticeable effect.

⚠️ Note: If your smartphone is warranty, disable fast charging via an engineering menu or ADB This can lead to loss of warranty service, in which case, use only standard settings. MIUI.

Method 1: Disconnect via standard MIUI settings

The easiest and safest method is to use the built-in MIUI options. It is suitable for most modern models (Xiaomi 13/14, Redmi Note 12/13, POCO F5/X5 and newer).

1. Open the Settings app.
2. Go to Battery and Performance (on some models, just Battery).
3. Select Charging or Charging settings.
4. Find the Quick Charging option (could be called Turbo charging or Quick charge) and switch the slider to the Off position.

On some firmware (e.g. MIUI 14 for the global version), this item may be hidden.

• 🔍 Insert the word "charging" in the search by settings".
• 📱 Restart your phone – sometimes the option appears after the system update.
• 🌐 Change the region in settings to India (in some firmware, this will unlock additional options).

If you don't have one in your model, it means that the manufacturer has blocked the possibility of disconnecting through the interface, and then you have to use alternative methods, which we'll talk about later.

Check the current version of MIUI (Settings → About Phone → MIUI Version)

Connect the original charger

Charge your phone to 30-50% for testing

Backup important data (in case of failure)

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Method 2: Use of an engineering menu (for advanced users)

If you don't have a shutdown option in your settings, you can try it through the engineering menu, which works on most Qualcomm Snapdragon-based devices (e.g. Redmi Note 10 Pro, POCO X3 Pro). Be careful: improper actions in the engineering menu can cause your phone to malfunction.

Instructions:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. In the menu that opens, select Battery Information.
4. Scroll down and find the Fast charge (can be called Quick charge or Turbo charge).
5. Click on it and select Disable.
6. Reboot the phone.

On some models (e.g. Xiaomi Mi 11), the engineering menu may be blocked, in which case, try the alternative code:

• 📱 ##36446337# for MediaTek devices (Redmi 9, POCO M3).
• 🔧 ##232338## - Shows the firmware version and additional options.

⚠️ Attention: On devices with MIUI 13/14 And the newer engineering menu can be hidden or requires root rights. If nothing happens after you enter the code, don't try to use third-party apps to unlock it, which can compromise system security.

If the engineering menu is not available, the next way is to use the ADB-This is a more complex but versatile method that works on most Xiaomi devices.

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Method 3: Disconnect via ADB (for power users)

The Android Debug Bridge (ADB) method is suitable for all Xiaomi models, but requires connecting the phone to a computer and basic command line knowledge, an advantage of which is that it does not require root rights and works even on locked bootloaders.

Step-by-step:

1. Download and install ADB Tools on your computer.
2. Turn on Developer Mode: Go to Settings → About Phone. Press 7 times on MIUI Version. Return to Settings → Additional → Developer. Activate USB Debugging.

File transfer

CMD

Terminal

adb devices

(Your device should show up. If not, check the drivers and the cable.)

adb shell


settings put global fast_charge 0

Once you've completed the command, restart your phone. To return the fast charge, use:

settings put global fast_charge 1

On some firmware (e.g. MIUI 12.5 and older), this command may not work due to manufacturer limitations.

adb shell


setprop persist.sys.fastcharge false

This method is more reliable, but requires a reboot after each change, and note that after updating the firmware settings may reset.

💡

If the command doesn’t work, try adb root first (some firmware requires superuser rights).

Method 4: Use third-party apps (with caution!)

There are several apps on Google Play that promise to disable fast charging without root rights.

• 🔧 Quick Charge Disabler – works on Qualcomm Snapdragon devices.
• 📱 Battery Charge Limit – allows you to set a charging limit (for example, up to 80%), which indirectly reduces the speed.
• 🛠️ AccuBattery – monitors battery status and can limit charging current.

However, these solutions have serious shortcomings:

• ❌ It may not work on the latest versions. MIUI (13/14).
• ❌ Require constant work in the background, which in itself drains the battery.
• ❌ Some apps contain advertising or collect data.

If you do decide to use third-party software, follow these rules:

1. Check the reviews and rating of the application (should be 4.5+ and over 100,000 installs).
2. Do not give the app root or ADB rights if it requests them.
3. After installation, limit background activity in the battery settings.

⚠️ Note: Apps like Greenify or Battery Guru don’t turn off fast charging directly, they just optimize processes. ADB.

What to do if nothing works: alternative solutions

If none of the above methods worked, consider the following options:

If you decide to use a non-original charger, make sure it meets the following requirements:

• 🔌 Exit voltage: 5V/2A (maximum).
• 🔋 Support for the standard USB BC1.2 (compatiblely).
• 🛡️ Protection against overheating and short circuit.

Important: Using chargers with output currents greater than 2A without fast charging support can damage the phone's power controller.This is one of the most common causes of USB-C port failure on Xiaomi devices.

How to check if fast charging is actually off

After applying one of the methods, you need to make sure that the changes have taken effect.

1. Charging time: Connect your phone to the charger and record the time. If it used to charge in 1 hour, and now it's 3-4 hours, then fast charging is off.
2. AccuBattery app: Install it from Google Play and check the current charging current. When charging fast, it's usually 2000-3000 CA, with standard — 500-1500 ma.
3. Enter the code ##4636## and check the status of Fast charge (should be Disabled).
4. Thermal imager or thermometer: Measure the temperature of the case during charging. When fast charging is turned off, it should not exceed 35 ° C.

If the phone still warms up or charges too fast after shutting down fast charging, it may be a problem:

• 🔋 Failed battery (replacement required).
• 🔌 Damaged charger or cable.
• 📱 Failure of the power controller (repair required).

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Turning off fast charging does not guarantee eternal battery life, but it can extend its life by 20-30% when properly operated.

FAQ: Frequent questions about turning off fast charging on Xiaomi