How to remove fast charging on Xiaomi Poco M3: 4 proven ways

Xiaomi Poco M3 is a popular smartphone with a powerful 6,000 mAh battery and support for Quick Charge 3.0 fast charging. However, many users prefer to turn off this feature to reduce battery heat and extend its life. In this article, we will analyze all working methods for disabling accelerated charging from standard settings to hidden engineering menus.

It's important to understand that fast charging doesn't always harm the battery: modern Xiaomi controllers are optimized for safe use. But if you notice that the smartphone warms up a lot during charging or the battery loses capacity quickly, turning off Quick Charge may be a smart solution. We tested all methods on the Poco M3 with MIUI 12.5 and MIUI 13 firmwares - the instructions are relevant for both versions.

Before you start, check the current charging status: connect your smartphone to the original adapter and look at the lock screen. If you see the Fast Charging or the lightning icon, the function is active, and now we turn it off.

1. Disconnection through standard MIUI settings

The easiest way is to use the built-in MIUI options. Unfortunately, there is no direct switch for fast charging in the basic settings on the Poco M3, but it can be deactivated through battery optimization mode.

Follow the steps:

1. Open the settings → Battery and performance.
2. Go to Battery Settings (or Battery Status depending on the MIUI version).
3. Find the option “Optimize charging”
4. Turn on the “Limit charge to 80%” option (if available) or select “Balanced” mode instead of “Fast”.

This method does not completely disable Quick Charge, but reduces the charging intensity.

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If your settings do not include “Optimize Charging”, upgrade your MIUI to the latest version or use the methods in the following sections.

2.Use of the engineering menu (code ##4636##)

The hidden engineering menu allows you to manage charging options, including disabling Quick Charge.This method works on most Xiaomi devices, but requires caution - improper changes can disrupt the stability of the system.

Instructions:

1. Open the Phone app and enter the code ##4636##.
2. In the menu that opens, select Battery Information.
3. Scroll down to the Charge section and look for the Fast Charge option (could be called Quick Charge or USB PD).
4. Click on the option and select Disabled.
5. Save the changes and restart the smartphone.

After rebooting, connect the Poco M3 to the charger, the “Fast Charging” label disappears and the charging time increases by about 30-40%. If the Fast Charge option is not on the menu, try the alternative code: ##2846579## (ProjectMenu → Background Settings → Battery Charge).

3. Disconnection through the application "AccuBattery"

AccuBattery (available on Google Play) not only monitors battery status, but also limits charging current, an indirect way to reduce the intensity of the Quick Charge without turning it off completely.

How to set up:

1. Install AccuBattery and provide all the necessary permissions.
2. Go to the “Charging” section.
3. Activate the option “Charge limit” (Charge limit).
4. Set the maximum current at 1000-1500 mA (standard charging without Quick Charge is usually ~1000 mA).
5. Connect the charger – the application will automatically limit the current.

The advantage of this method is that you can adjust the charging speed flexibly depending on the situation, for example, at night you can set the limit of 800 mA, and during the day - 1500 mA. However, note that AccuBattery only works with an active application in the background, which can slightly increase battery consumption.

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4. Completely disable Quick Charge via ADB

For power users, the most reliable way is to use ADB (Android Debug Bridge), which allows you to disable Quick Charge at the system level, but requires a connection to a computer and turn on the developer mode.

Step-by-step:

Enable Developer Mode (7 times click on “Build Number” in “About Phone»)|Activate “Debugging by” USB» developer-setting|Install drivers ADB PC-only|Download the platform ADB Tools from the official Google website-->

1. Get Poco on. M3 computer-to-computer USB-cable (preferably original).
2. Open the command prompt (cmd) in the folder with adb.exe.
3. Enter the command to check the connection: Adb devices should display the name of your device.
4. Give a command to disable fast charging: adb shell settings put global battery_charge_limit 0 Next: adb shell settings put global fast_charge 0
5. Reboot your smartphone: adb reboot

Once you restart, Quick Charge will be completely deactivated. To get it back, use the same commands, replacing 0 with 1. Note that on some MIUI firmware, these parameters may be reset after you update the system.

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ADB-The method is the only way to completely disable Quick Charge at the firmware level, but it requires developer rights and may not work on custom firmware.

5. Alternative methods: charging from USB-port or weak adapter

If the software methods are not suitable, you can bypass the hardware limitations:

• 🔌 Charging from USB-PC ports: standard ports USB 2.0 gives a current of up to 500 mA, and USB 3.0 – up to 900mA, which automatically disables Quick Charge.
• 🔋 Use of a weak adapter: connect the charger to 5V/1A (like an old smartphone). Poco M3 It recognizes it as a normal exercise.
• 🔄 Wireless charging: If your model supports Qi, wireless charging usually runs on standard currents (5V/1And).

These methods do not require changes in settings, but have drawbacks: charging takes 2-3 times longer. For example, a full cycle from 0% to 100% can last for 6-8 hours instead of the standard 2-3 hours.

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To speed up the charging from USB-PC port, turn on the BIOS setup «USB Fast Charge (if available) or use the ports on the back of the system unit – they are often more powerful than the front.

Possible problems and solutions

When you disable Quick Charge, Poco M3 users may face the following difficulties:

If none of the methods worked, check:

• 🔍 Firmware Version: on some beta versions MIUI Engineering menu functions are limited.
• 🔧 Root rights: If you have Magisk installed, try modules like QuickCharge Disabler.
• 📱 Status. USB-Port: Damaged contacts can force slow charging.

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On the Poco M3 with MIUI 14+ firmware, some engineering codes may not work due to Xiaomi’s tightening security policy, in which case ADB remains the only reliable way.

Comparison of methods: which one to choose?

To help determine, we have compiled a comparative table:

For most users, the best solution is a combination of AccuBattery (for everyday use) and an engineering menu (for a complete shutdown). ADB is suitable for those who are willing to take the time to set up but want a guaranteed result.

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If you travel frequently, carry a weak 5V/1A adapter with you – it will not only turn off Quick Charge, but also save space in your luggage.

FAQ: Frequent questions

If none of the methods worked or you have additional questions, study the official documentation of Xiaomi for Poco M3 or contact an authorized service center. Remember that you perform manipulations with engineering settings and ADB at your own risk.