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

Modern Xiaomi Poco smartphones feature fast charging technology that allows you to restore battery power in minutes. However, not all users want to use this mode constantly. The reasons can vary from wanting to extend battery life to the need to use non-original chargers. In this article, we will discuss in detail how to turn off fast charging on different Poco models, what alternative methods are available and what to consider before changing settings.

It's important to understand that the manufacturer initially includes fast charging for a reason, it's an optimized mode that takes into account the features of the battery and cooling system. But if you still decide to turn it off, you can do this in several ways: through standard MIUI settings, using hidden menus or even physical shutdown (for advanced users), We will consider all options, including those that work on the latest versions of MIUI 14/15 firmware.

Before you start settings, check your device model and firmware version. Some methods may not work on older or custom builds. Also remember that turning off fast charging does not always lead to the expected effect - sometimes the system automatically returns settings to factory settings after an update.

Why users want to turn off fast charging on Poco

At first glance, fast charging seems like a very useful feature, but it also has a downside that forces users to look for ways to turn it off.

• 🔋 Extending battery life: Fast charging increases battery heat, which can reduce battery life over time, especially for devices older than 2 years.
• ⚡ Using unoriginal chargers: Cheap adapters may not work properly with Quick Charge or Turbo Charging technology, leading to overheating.
• 📱 Power bank compatibility: Many external batteries do not support high currents, and the smartphone either does not charge or does so extremely slowly.
• 🔌 Heat problems on some Poco models X3, Poco F3 POCO X5 fast charging can cause overheating of the body even under normal conditions.

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 reduces the load on the cooling system, but it should be borne in mind that the effect can be temporary – over time, the battery will still degrade, regardless of the charging mode.

Method 1: Disconnect via MIUI settings (official method)

The easiest and safest way to disable fast charging is to use standard MIUI settings. This method works on most Poco models, including the Poco X4 Pro, Poco F4, Poco X5 Pro and others with MIUI 12 firmware and later.

1. Open the Settings app (the gear icon on the desktop).
2. Go to Battery and Performance (some versions may call it Battery).
3. Select Battery Settings or Additional Settings (depending on the model).
4. Find the option Fast Charging (can be called Turbo Charging, Quick Charge or Accelerated Charging).
5. Turn the slider to the off position. or uncheck the tick.

After that, the smartphone will charge in standard mode (usually up to 10W instead of 33W/67W/120W).Please note that on some devices (Poco F5, Poco X6 Pro) this option can be hidden in the submenu of Charging Modes or Battery Optimization.

⚠️ Note: Some Poco C-series may display a “slow charge” notification after the fast charge is turned off. This is normal – the system simply informs you of the current mode.

Method 2: Using hidden menus of engineering mode

If the standard settings do not have the option to turn off fast charging, you can try to activate the engineering menu. This method is suitable for advanced users and requires caution - incorrect actions can lead to malfunctions of the device.

1. Open the Phone app and type the combination: ##4636## (some models may not work).
2. If the combination didn’t work, try ##6484## or #64663## (MTK Engineer Mode for MediaTek-based devices).
3. In the menu that opens, select Battery Information (or Battery Information).
4. Find the Fast Charge or Quick Charge Config setting and turn it off.
5. Save the changes and restart the smartphone.

If the engineering menu is missing or lacks the right options, you can use third-party applications like MTK Engineering Mode (MediaTek only) or Qualcomm USB Settings (Snapdragon), but beware – these applications require root rights or may contain malicious code.

Method 3: Disconnect via ADB (for power users)

If standard methods don't work, you can use Android Debug Bridge (ADB), which requires connecting your smartphone to your computer and installing special drivers, but gives you more options for fine-tuning.

1. Download and install Platform Tools from the official Android website.
2. Turn on the smartphone Developer Mode (go to Settings → About Phone → MIUI version and tap 7 times on the build number).
3. Return to Settings → Additional → For developers and activate Debugging over USB.
4. Connect your smartphone to your PC and open the command line (cmd) in the folder with the platform-tools.
5. Enter the command to check the connection: adb devices If the device is displayed, execute: adb shell settings put global fast_charge 0
6. Reboot your smartphone.

To return fast charging, use the command:

adb shell settings put global fast_charge 1

⚠️ Attention: On some firmware MIUI after updating the system of settings ADB And not all Poco models support this team -- Poco. C40 POCO M4 5G You may need another syntax. Before you experiment, back up your data.

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If the team fast_charge If it doesn’t work, try an alternative for Qualcomm processors: adb shell setprop persist.sys.quickcharge false.

Method 4: Physical Disconnection (for Advanced Users Only)

This method involves disassembling the smartphone and turning off the contacts responsible for fast charging. We strongly recommend not resorting to it without experience in electronics repair, which can lead to irreversible damage to the board or battery.

• 🛠️ Disassemble the body. Use a plastic blade and heat (dryer) to carefully remove the back cover. X3 POCO F2 Pro cover is attached to latches and glue.
• 🔌 Localization of the charging controller. It's usually a chip next to the connector. USB-C,marked BQ25601, SY6974 or similar.
• ⚡ On some boards, it is enough to cut the track that goes to the resistor responsible for determining the type of charger.

This method is irreversible and unwarranted, and after such intervention, the smartphone may no longer recognize the original chargers or charge at all, if you do decide, pre-examine the circuitry of your model in specialized forums (for example, 4PDA or XDA Developers).

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Physically turning off fast charging is a last resort: 99% of the time, software methods (MIUI, ADB or engineering menu settings) are sufficient, and the risks of damage to the device during disassembly are disproportionately high compared to the potential benefit.

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

Turning off fast charging affects not only the rate of charge recovery, but also other aspects of the smartphone.

The change is particularly noticeable on high-capacity devices (e.g. Poco M5s with 5000 mAh). In standard mode, it can take up to 4-5 hours to fully charge instead of the usual 1-1.5 hours. It is also worth considering that on some MIUI firmware, turning off fast charging blocks other functions, such as Reverse Charging.

If your goal is to extend the life of the battery, consider alternative methods:

• 🔄 Use partial charge cycles (20 to 80%).
• 🌡️ Avoid charging at temperatures below 0°C or higher than 35°C.
• 🔌 Turn off your smartphone from charging immediately after reaching 100% (unless it supports automatic shutdown).

Frequent problems and their solutions

When you turn off fast charging, users often face unexpected difficulties. Consider typical situations and ways to solve them:

1. Settings are reset after rebooting, and this is typical for devices with custom firmware or beta versions. MIUI. Solution: Use ADB-command to permanently shut down or install the Magisk module (e.g. QuickCharge Disabler).
2. The smartphone doesn't charge at all. You may have disabled not only the fast charging, but also the main controller. Solution: Reset settings via Wipe → Reset Settings.
3. It turns up a "charging paused" error, which means that the smartphone detects is an incompatible charger, so you can either use the original adapter or turn on the fast charge back.
4. Charging time hasn't changed. Probably the shutdown didn't work because of the firmware. Solution: Check the current charging current through the Ampere app (should be ≤ 1.5A).

If none of the methods worked, contact the Xiaomi service center with a request to turn off fast charging at the software level. Some workshops offer such a service for a nominal fee (about 500-1000 rubles).

FAQ: Answers to popular questions