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

Fast charging is one of the key benefits of modern Xiaomi smartphones, but sometimes users want to turn it off. The reasons can range from wanting to extend battery life to needing to use non-original chargers. In this article, we will discuss all the available ways to turn off fast charging on Xiaomi devices, including hidden settings and engineering menus.

It is important to understand that the process of disconnecting may vary depending on the smartphone model and the version of the MIUI firmware. Some devices allow you to do this through standard settings, while others will require access to hidden settings. We will take a detailed look at both options, as well as give recommendations on security and possible consequences.

Why do users want to turn off fast charging?

Despite the obvious benefits, fast charging has a downside, and here are the main reasons Xiaomi owners decide to deactivate it:

• 🔋 Extending battery life: Fast charging increases battery heat, which can accelerate battery degradation over time, especially for devices older than 2 years.
• ⚡ Using unoriginal chargers: Cheap adapters may not work properly with Quick Charge technology, causing the battery to overheat or even damage.
• 📱 Powerbank Compatible: Some external batteries do not support fast charging protocols, which may prevent the smartphone from charging at all.
• 🔌 Overheating problems: on some models (e.g. Redmi Note 10 Pro or POCO X3 Pro) rapid charging causes excessive heating of the shell.

In addition, some users note that when you turn off fast charging, the smartphone heats up less during games or heavy use, this is due to the fact that the power controller operates in a more gentle mode.

Method 1: Disconnect via standard MIUI settings

Most modern Xiaomi smartphones (starting with MIUI 12) have the option to turn off fast charging right in the settings menu, which is the easiest and most secure method, since it does not require access to system files.

1. Open the Settings app (cog icon).
2. Go to the Battery and Performance section.
3. Select Charging or Charging Settings (the name may vary depending on the model).
4. Find the option Fast Charge or Turbo Charge and move the slider to the off position.
5. Confirm the action if a warning appears.

On some devices (such as Xiaomi 11T Pro or Redmi K50), this item may be in the submenu of Additional Charging Settings. If you do not see the option, try updating the firmware to the latest version - in new versions of MIUI, the interface may change.

Make sure your smartphone is charged at least 30 times%|Connect the original charger|Close all background applications|Check the temperature of the body (not higher than 35).°C)-->

Important! After you turn off fast charging, the full charge time can increase by 1.5-2 times, for example, if the battery used to be charged in 1 hour, now it can take 2-2.5 hours.

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

If your Xiaomi model does not have the option to turn off fast charging in the standard settings, you can use the engineering menu. This method requires caution, since incorrect actions can lead to malfunctions of the device.

Instructions for access to the engineering menu:

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that appears, select Battery Information.
3. Find the Fast Charge or Quick Charge and turn it off.
4. Save the changes and restart the device.

On some models (e.g. POCO F3 or Xiaomi Mi 10), the path may be different. If the ##4636## combination doesn't work, try:

• 📱 ##6484## - for testing the charging module.
• 🔧 ##64663## - to access advanced power settings.

Warning: changing the parameters in the engineering menu can lead to unstable charging or even failure of the power controller. If you are not sure of your actions, it is better to use the first method or contact the service center.

Method 3: Disconnect via ADB (for power users)

If standard methods don’t work, you can try turning off fast charging using ADB (Android Debug Bridge), a method that is suitable for users who have experience with the command line and unlocked bootloader.

Instructions:

1. Install ADB and Fastboot Tools on your computer.
2. Turn on USB Debugging on your smartphone: Settings → About Phone → MIUI version (click 7 times to activate Developer Mode), then go back to Settings → Additional → Developers → Debugging on USB.
3. Connect your smartphone to your computer and type in the command line: adb shell settings put global fast_charge 0
4. Reset the device.

To return fast charging, use the command:

adb shell settings put global fast_charge 1

Attention! Incorrect use of ADB can cause system failure. Before executing commands, back up the data.

Xiaomi models, which fast charging can not be turned off

Not all Xiaomi devices have the option to deactivate fast charging, but here is a list of models where this feature is locked at the firmware level:

If your model is on this list, the only way to reduce battery load is to use lower power chargers (like 5W or 10W) or activate the power saving mode while charging.

What happens if you turn off fast charging: pros and cons

The decision to disable fast charging has its advantages and disadvantages. Let's take a closer look at them:

• ✅ Pluses: 🔋 15-20% battery life increase (Battery University test results). 🌡️ Reducing the heat of the device during charging. 🔌 The ability to use any chargers without the risk of overheating.
• ❌ Cons: ⏳ Increase in charging time by 1.5-2.5 times. 📉 Possible decrease in performance during heavy use during charging. ⚠️ Risk of accidentally turning on fast charging after firmware update.

If you are traveling frequently and you care about charging speed, you should not turn off this feature, but for home use, where the smartphone charges at night, switching to standard charging may be justified.

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To check the actual charging speed, install the AccuBattery app (available on Google Play) which will show the charging current in mA and help you evaluate the effectiveness of turning off fast charging.

Frequent Mistakes and How to Avoid Them

When you turn off fast charging, users often make mistakes that can lead to undesirable consequences.

⚠️ If the smartphone stopped charging at all after the fast charge was turned off, check the cable and adapter.

• 🔌 Even if you've turned off fast charging, a damaged cable can cause a short circuit. Always check the integrity of the wire before connecting.
• 📱 Disabling charging during firmware updates can cause a device to "brick." Always wait until the process is complete.
• ⚡ Using unstable voltage chargers, even when fast charging is turned off, cheap adapters can damage the power controller.

Another common mistake is to try to disable fast charging through third-party apps from Google Play, which most of these programs don't work or contain malicious code.

FAQ: Answers to Frequent Questions

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Turning off fast charging is an effective way to extend battery life, but only with the right approach. Always use original or certified chargers, even if fast charging is turned off.