Disabling turbocharging on Xiaomi Poco X3: all the ways and consequences

Xiaomi Poco X3 is equipped with fast charging technology (33W), which allows you to restore battery power to 62% in 30 minutes. However, accelerated charging has the opposite side: it increases battery heat and can reduce its life by 15-20% during heavy use. If you notice that the battery has become more quickly discharged or the phone overheats during charging, turning off turbocharging can be a reasonable trade-off.

In this article, we’ll look at all the ways you can turn off fast charging on the Poco X3, from standard MIUI settings to hidden engineering menu features, and how to check your current charging mode, what alternatives are available to take care of your battery, and what to do if you don’t have a shutdown option.

Why is it worth turning off turbocharging on the Poco X3?

The Quick Charge 3.0 technology used in the Poco X3 is optimized for speed, not durability, and here are the key reasons why users decide to deactivate it:

• 🔋 Extending battery life: Lithium-polymer batteries degrade faster at high charging currents. Turning off turbo mode can increase the number of charging cycles by 20-30%.
• 🌡️ Reduced heat: With fast charging, the body temperature can reach 40–45°C, which adversely affects productivity and safety.
• ⚡ Stability: Some users note lags and hovers while charging and using resource-intensive applications.
• 💰 Savings on battery replacement: New battery for Poco X3 It costs from 1500 to 2500 rubles. Turning off turbocharging will delay this expense.

But there is a downside: full charge time will increase from 65 to 120-150 minutes. If you are often on the road and depend on quick charge recovery, this method may be inconvenient, in which case consider partial shutdown (for example, overnight only) or using alternative chargers with less power.

Method 1: Disconnect via standard MIUI settings

The easiest and safest method is to use the built-in options, and depending on the version of MIUI, the path to settings may vary slightly, but the general logic is maintained:

1. Open the Settings app (the gear icon on the home screen).
2. Go to the Battery and Performance section.
3. Select the Battery Settings item.
4. Find the option Quick Charging (or Turbo Charging) and move the slider to the Off position.

If this option is not available, then your version of MIUI does not support it, in which case you should try updating your firmware or using the alternative methods described below.

Charge your phone to 30-50% (optimum for testing)

Connect the original cable and power supply

Close all background applications

Check the battery temperature in Settings → Battery → Status

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⚠️ Note: On some firmware (for example, MIUI 12.5 Enhanced) The fast charging option may be hidden under the name Smart Charging or Adaptive Charging. Not to be confused with Optimized Charging, which only limits the charge to 80%.

Method 2: Use the engineering menu (#4636##)

If the standard settings do not allow you to turn off turbocharging, you can use the hidden engineering menu, which works on most Xiaomi devices, but you need to be careful:

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select the Battery Information tab.
3. Scroll down and find AC Charge or Fast Charge.
4. Click on it and select Disable in the window that appears.

After that, restart the device. The changes may require a full discharge and battery charge (up to 100%) to take effect. Note that the engineering menu also checks the current charging current (in mA) - if the value exceeds 1500-1800 mA, the turbo mode is still active.

Method 3: Applications for charging control (AccuBattery, Battery Guru)

If system methods don't work, you can use third-party utilities that limit the charging current programmatically.

• 📊 AccuBattery: Allows you to set a charging limit (e.g. up to 80%) and monitor battery health.The free version has limitations.
• ⚡ Battery Charge Limit: Blocks fast charging when you reach a predetermined threshold. Requires root rights to work properly.
• 🛠️ 3C Toolbox: Advanced utility for power management, but difficult to set up.

Example of settings in AccuBattery:

1. Install the app from Google Play.
2. Go to the Charging section.
3. Activate the option to limit charging and set a maximum of 80-90%.
4. Enable notifications of reaching the limit.

⚠️ Warning: Third-party applications cannot completely disable hardware fast charging — they only mimic this by interrupting the process when a given threshold is reached.

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If you use AccuBattery, calibrate the battery every 2-3 months: discharge the phone to 0%, then charge to 100% without interruption, which will improve the accuracy of the display of the charge level.

Method 4: Hardware shutdown (using a non-original charger)

If the software methods don’t work, you can go a detour to use a charger with less power. Xiaomi Poco X3 supports the following charging modes:

• ⚡ 33W (Turbo: Original power supply from the kit.
• 🔌 18W (Charges from Xiaomi Redmi Note 9 Pro or Samsung Adaptive Fast Charging.
• 🐢 10W (standard: any USB-block 5V/2A (For example, from old smartphones).
• 💻 5W (Slow: Charging through USB-port PC.

To force the phone to slow charge:

1. Connect the Poco X3 to a 5V/1A charger (e.g., from Xiaomi Mi Band).
2. Check the charging current in the Ampere app (should be within 300-600mA).
3. If the phone still charges fast, try using a non-original cable (without Quick Charge support).

Important: When using uncertified chargers, the risk of battery damage increases, with the original power supply from the Redmi Note 8 Pro (18W) being the best option, which is compatible with the Poco X3 but does not activate the turbocharger.

What to do if the turbocharging does not turn off?

If none of the methods worked, the reasons may be as follows:

• 🔄 Restricted firmware: Some custom firmware (e.g. Pixel Experience) blocks access to charging settings. The solution is to return stock MIUI.
• 🔧 Power controller damage: If the phone is always charging at maximum current regardless of the power supply, this could indicate a hardware malfunction.
• 📱 Update MIUI: After major updates, settings may reset. check the firmware version in Settings → The phone.

In extreme cases, you can resort to rooting and editing the configuration file. /system/etc/thermal-engine-8953.conf (POCO X3 Snapdragon on Snapdragon 732G). However, this method is risky and requires experience with the ADB Magisk.

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If the turbocharging is not software-enabled, the safest way is to use a 10W charger. This will not damage the battery and does not require any system intervention.

How to check that the turbocharger is actually turned off?

To make sure that fast charging is deactivated, follow the following steps:

1. Connect the phone to the charger.
2. Install the Ampere app from Google Play.
3. Run it and check the current charging current: ✅ Up to 1000mA: Turbocharging disabled (standard mode). ⚠️ 1000-1800 mA: Partially active (possibly triggered by smart charging). ❌ Over 1800mA: Turborezhem still working.

Settings → Battery → Status

You can also use a hidden battery test:

1. Enter the phone code in the app: ##2840##.
2. Choose ProjectMenu → Battery → Battery Health.
3. Look at the Charging Status value. If it says Normal, turbocharging is off.

However, the first 50% will still charge relatively quickly (about 40-50 minutes), as standard charging also has an accelerated phase.