How to turn on fast charge on Xiaomi: a complete guide with expert advice

Why fast charging on Xiaomi may not work – and how to fix it

Have you bought a new Xiaomi smartphone with fast charging support, but the battery charges as slowly as it does on older models? Or has the device suddenly stopped using accelerated mode? The problem is often not the hardware, but the wrong settings or incompatible accessories. In this article, we will discuss all the ways to enable fast charging on Xiaomi, from basic checks to hidden MIUI features.

It’s important to understand that even if your smartphone supports Quick Charge, Fast Charge or Turbo Charge (depending on the model), the system can automatically turn it off when overheating, using unoriginal cable or power supplies with insufficient power, we will show you how to check the current charging mode, activate hidden options and avoid typical errors that reduce speed.

How to Check if Your Xiaomi Supports Fast Charging

Before you set anything up, make sure your Xiaomi model is generally compatible with accelerated charging.The manufacturer uses several standards depending on the series:

  • 🔋 Quick Charge 3.0/4.0+ — most flagships (Xiaomi) 12/13/14, Mi 10/11, POCO F3/F4/F5)
  • ⚡ Fast Charge 33W/67W/120W — Models with proprietary technology (Redmi Note) 11 Pro+, Xiaomi 11T Pro, Black Shark 5)
  • 🔌 Turbo Charge – budget devices with support 18W–27W (Redmi 9/10, POCO X3/X4)

To know the capabilities of your smartphone:

  1. Open the Settings app → About the phone → All the characteristics.
  2. Find the line Fast Charging or Max. charging power.
  3. If you don’t have any information, check the official Xiaomi website by model (e.g. mi.com).
📊 What Xiaomi model do you use?
Redmi (Note/Pro series)
POCO (F/X/M)
Xiaomi (digital series 11/12/13/14)
Black Shark
other

Note: Some models (for example, Redmi Note 10 Pro) support 33W, but the package comes with a power supply on 18W. In this case, to activate full power you will need to buy the original adapter.

Step-by-step: how to enable fast charging on Xiaomi

If your smartphone supports the technology but it doesn’t automatically activate, follow these steps:

  1. Use the original cable and power supply. Non-original accessories often don't transmit data on support for fast charging. Check the label on the adapter - power must be indicated (for example, 33W or 67W).
  2. Activate the mode in settings: Go to Settings → Battery, put it on the icon. ⚡ next to the percentage of charge (or select Charging Settings). Turn on the Fast Charging Switch (on some firmware - Accelerated Charging).

Reset the device

The original USB-C cable is used.

The power supply supports the declared power (33W/67W/120W)

In the battery settings, the "Fast Charging" mode is enabled

The temperature of the smartphone does not exceed 35 ° C

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If you're still slow to charge after this, check the temperature of the device. When you're above 40°C, the system automatically lowers the power for safety. Also make sure you don't use the power saving mode, it turns off accelerated charging.

💡

On models with MIUI 14+, you can turn on fast charging with a voice command: say “Hey Siri” (or activate Google Assistant) and say “Enable fast charging”.

Hidden MIUI settings for optimizing charging

MIUI firmware has hidden options that allow you to fine-tune the charging process, such as turning off power limitation at high temperature (not recommended for everyday use!) or force activation of maximum mode.

To access these parameters:

  1. Open the phone app and enter the combination: ##4636##
  2. In the Testing menu, select Battery Information.
  3. Check the AC powered and USB powered strings, and if you have Fast charged next to it, the technology works.

You can also try calibrating the battery (if the smartphone incorrectly determines the level of charge):

  1. Discharge the device to 0% and turn it off.
  2. Connect to charging and do not turn on 8-12 hours.
  3. After full charging, turn on your smartphone and reset the battery statistics in Settings → Battery → Three dots (menu) → Calibration.

FAQ: Frequent questions about fast charging on Xiaomi

My Xiaomi supports 67W, but only charges 18W.
You're probably using a non-original cable or power supply. Check: Marking on the adapter -- it should be power. 67W support PD 3.0 or QC 4.0+. Integrity of cable - try another, preferably from the kit. Smartphone settings - in Settings → Battery should be on Fast Charging mode. If everything is okay, but the problem remains, contact the service: the power controller may be defective.
Can I use a laptop power supply (such as 65W) to charge Xiaomi?
Technically yes, but: Charging speeds won't increase above the maximum power supported by a smartphone. The risk of battery damage increases if the power supply isn't certified for mobile. It's better to use original Xiaomi adapters or certified USB-PD units (like from Anker or Baseus).
Why does fast charging only work up to 80% and then slow down?
This is normal for modern smartphones. After 80 percent, the system automatically reduces the current to: Extend battery life, avoid overheating, reduce the risk of battery bloating, and you can only turn this off through ADB (not recommended), but this will reduce battery life by 20 to 30 percent.
How to check the real charging speed on Xiaomi?
Use the AccuBattery app (available on Google Play): Install and open the app. Connect your smartphone to charge. Go to the Charge tab to show the current power in mA (milliamps). Compare: 18W ≈ 3000-3500 mA. 33W ≈ 5000-5500 mA. 67W ≈ 6000-6500 mA.
Fast charging warms your smartphone. Is that normal?
Light heating (up to 40-45°C) when charging fast is normal, but if the temperature is above 50°C or the smartphone gets hot to the touch: Turn it off the charge and let it cool. Check if the application is working in the background, such as a game. Use charging in a cool room (not in the sun or under the blanket). If overheating is repeated, this may indicate a malfunction of the battery or power controller.