How to enable fast charging on Xiaomi: full instructions with nuances

Xiaomi smartphones support fast charging technology, but it does not always work out of the box at maximum power. Users often face a situation where the device charges slower than expected, although the specifications indicate support for Fast Charging, Turbo Charge or HyperCharge.

In this article, we’ll look at all the ways you can activate fast charging on Xiaomi, Redmi and POCO devices, from basic settings to hidden developer settings, and focus on models that support 120W, 67W and 33W, and common bugs that may cause the technology to fail. If your smartphone is warming up when charging or your battery percentage is growing too slowly, here’s a solution.

Checking support for fast charging with your Xiaomi model

Before you try to turn on fast charging, make sure your device supports it. The manufacturer doesn't always activate the default feature, especially on budget models.

• 📱 Official specifications: Find your model on Xiaomi’s website under “Specifications” and look for Fast charging, Quick Charge or power (e.g., Fast Charge) items, 33W).
• 🔍 Marking on charger: the original power supply from Xiaomi should have the inscription Quick Charge 3.0+, PD (Power Delivery or indication of power (18W, 33W etc.).
• 📊 Annex CPU-Z: In Battery, see Fast Charge. If it's marked as Supported, it's available.

Note that even if the smartphone supports fast charging, it may not work with non-original cables or power supplies. For example, the Redmi Note 11 requires a 33W block, and the Xiaomi 12 Pro requires a 120W charging from another device (for example, from an iPhone to 5W) will automatically turn off the accelerated mode.

⚠️ Note: Some models (e.g. Redmi) 9A) Fast charging is supported hardware, but it's software-enabled, and in this case, only the firmware with the bootloader unlocked will help.

Method 1: Enabling fast charging in MIUI settings

The easiest way to activate the function is through the standard menu. The interface can be on different versions of MIUI, but the overall algorithm is the same:

1. Open the Settings app (cog icon).
2. Go to Battery and Performance (on some firmware, just Battery).
3. Select the Battery Settings option → Charging mode.
4. Activate the Fast Charging Switch (or Turbo Charging to be used) POCO).

If there is no such item, try an alternative path:

• 🔧 Settings → Additionally. → Special facilities → Developer mode → Fast charging (developer mode pre-enabled).
• ⚡ Settings → Battery → The gear badge in the upper right corner. → Fast charging (for the purpose of MIUI 13/14).

Used original cable and power supply Xiaomi|

Smartphone temperature below 35°C|

Battery level less than 80%|

Aircraft mode is enabled (recommended for first activation)-->

Critical feature: On models with HyperCharge (e.g. Xiaomi 11T Pro), the function can automatically turn off when using uncertified accessories.

Method 2: Activation through Developer Mode

If the standard settings don’t work, try enabling hidden settings through developer mode, which works on most devices running MIUI 12-14:

1. Activate Developer Mode: Go to Settings → About Phone. Click 7 times on MIUI Version (you will be notified "You are a developer").
2. Return to the main Settings menu and open the Additional → Developer settings section.
3. Scroll down and find Fastboot charging (or Fastboot charging – don’t confuse!).
4. Select mode: On is standard fast charging; Enhanced is maximum power (can heat the battery); Disabled is standard 5W/10W charging only.

On some firmware (e.g. POCO Launcher), the item may be called MI Fast Charge+. If it isn't, try updating MIUI to the latest version or resetting to factory settings.

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After activating the fast charge through the developer mode, restart the smartphone. This will help avoid failures when you first connect to the charger.

⚠️ Note: On Xiaomi models with a battery capacity of more than 5000 mAh (for example, Redmi Note 12 Pro)+) Enhanced mode can reduce battery life by 10-15% per year of active use, and we recommend using it only when urgently needed.

Method 3: Use ADB commands (for power users)

If the software methods did not work, you can try to enable fast charging through ADB-This method is suitable for devices with unlocked bootloader or root rights, but requires caution:

1. Install ADB Tools on your PC.
2. Connect your smartphone to your computer and allow debugging over USB (Settings → Additional → Developer Settings → USB debugging).
3. Open the command line (Windows) or the terminal (macOS/Linux) Enter: adb shell settings put global fast_charge 1 settings put global mi_fast_charge 1
4. Reset the device.

To check the current status, use the command:

adb shell settings get global fast_charge

If the result is 1 – the function is turned on, 0 – turned off.

Some models (such as the Xiaomi Mi 11) may require an additional command to unlock the limitations:

adb shell settings put global battery_charge_control_enabled 0

Why fast charging doesn’t work: common mistakes

Even after you set it up properly, the function may not be activated, and here are the main reasons and ways to eliminate them:

• 🔌 Non-original power supply: Xiaomi blocks fast charging when using uncertified chargers. Check the marking - the original unit has the Mi logo and power indication.
• 🌡️ Overheating: If the battery temperature exceeds 40°C, the system automatically reduces power. Let the device cool down or remove the case.
• 🔋 Battery wear: With a capacity below 80% of the initial fast charging can be turned off. Check battery status in the AccuBattery app.
• 📱 Outdated firmware: On MIUI older than version 12.5, there may be no drivers for new chargers.
• 🔄 Resetting: After updating the firmware, charging parameters may reset. Re-enable the function in the settings.

Pay special attention to the cable: even the original power supply will not be able to provide fast charging if the cable is damaged or does not support high power. For models with 67W+, cables labeled USB-C to USB-C and support for USB Power Delivery 3.0 are required.

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If you don't start fast charging after all the manipulations, check the device for hardware faults. A damaged power controller or USB-C connector can block the function regardless of the settings.

How to Check if Fast Charging Really Works

Not always, increasing the percentage on the screen means that the smartphone is charging in accelerated mode. Here's how to accurately determine the current power:

1. Ampere: Install from Google Play. Connect the charger and launch the app. See the Charge value (in mA). For fast charging, it should be ≥3000 mA (for example, 4500 mA for 33W).
2. Secret code: ##4636### From the menu that opens, select Battery Information. AC power should show USB: charged (high speed).

If the indicators are lower than expected, check:

• 🔌 The power supply of the smartphone model (for example, Redmi Note 11 Pro requires a 67W).
• 📵 No background processes (close all applications before charging).
• 🔄 Power saving mode (turn it off in battery settings).

Safety and recommendations for the use of fast charging

The fast charging technology is convenient but has its risks. Follow these tips to extend battery life and avoid overheating:

• 🛡️ Use only original accessories: Non-original power supplies can deliver unstable voltage, leading to battery bloating.
• ❄️ Avoid extreme temperatures: Charge your smartphone at 10-35°C. At 0°C or 45°C+ Chemical processes in the battery are accelerated, which reduces its lifespan.
• 🔋 Don't keep 100% on charge: After reaching 80%, turn off the device or switch to standard charging.
• 📵 Turn off background tasks: Close games and heavy apps while charging – they increase the load on the processor and increase the temperature.
• 🔄 Calibrate the battery: Every 2-3 months, discharge the smartphone to 0% and charge to 100% without interruption.

On models with MIUI 14, Adaptive Charging has been introduced, which automatically limits power when connected to the network for a long time (for example, at night).

1. Go to Settings → Battery → Battery settings.
2. Activate the Adaptive Charging Switch.
3. Set a schedule (for example, 23:00-7:00).

⚠️ Note: On Xiaomi smartphones with battery ≫5,000 mAh (e.g, POCO M5s) Continuous use of fast charging can lead to a decrease in capacity by 20-30% in 1.5-2 years.We recommend alternating modes: accelerated for urgent charging, standard for night time.

FAQ: Frequent questions about fast charging on Xiaomi