How to know if fast charging works on Xiaomi: check in 5 minutes

Why Xiaomi May Not Charge Fast – and How to Fix It

You plugged a Xiaomi smartphone into a charger, but the battery is filling too slowly? Perhaps the Quick Charge (Quick Charge, Fast Charge or HyperCharge) feature is disabled or not supported by your kit. In this article, we’ll look at how to determine exactly whether accelerated charging is working on your device – from the budget Redmi to the flagship Xiaomi 14.

The problem can be three things: an incompatible charger, a damaged cable, or software constraints (like after the MIUI update), we'll test all options, including hidden system settings that the manufacturer doesn't advertise, and you'll also learn how to force your smartphone to charge faster if the hardware is working.

Important: Some Xiaomi models (like the Redmi Note 12 Pro+) support 210-watt HyperCharge charging, but only with a proprietary adapter. If you use third-party RAM, the maximum power can drop to 33 watts or below.

Method 1: Checking through the lock screen (the fastest method)

The easiest way to know if fast charging is activated is to look at the charging indicator on the lock screen. Connect your smartphone to the charger and notice the label below the battery percentage:

• 🔋 "Fast charging or fast charging – the function works.
• ⚡ "Super fast charging" or "HyperCharge" - maximum power (67W and higher) is used).
• ⚠️ "Charging" without specifications - standard mode (5-10 W).
• 🚫 No inscription – perhaps using a non-original cable or adapter.

If the message flashes or disappears after a few seconds, it is a sign of overheating of the battery or unstable power, in which case the system automatically reduces the power. Try to turn off the smartphone for 10 minutes to cool it, and repeat the test.

Method 2: Analysis through the battery menu in MIUI

MIUI's firmware has a section with detailed charging information to get there:

1. Open the Settings. → Battery.
2. Slap the icon. ⚙️ ("Battery settings") in upper right corner.
3. Select "Battery status" (on some models - "Battery health").
4. Scroll down to the Charging History block.

This is a graph of the voltage and current over the last 24 hours, and you can see the peaks.

• 📈 5V/2And (10 W) - standard charge.
• 📈 9V/3A or 12V/2.5And (27–30 W) - Quick Charge fast charging 3.0/4.0.
• 📈 20V/5And (100 W and above – HyperCharge (for Xiaomi) 12T Pro, Redmi Note 12 Pro+ newer).

If the graph shows low values (for example, 5V/1A), despite the connection of a powerful RAM, the problem may be a damaged USB-C port or a worn-out battery (if the phone is older than 2 years).

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On models with MIUI 14 and later, there's a hidden battery test on the battery menu, so to activate it, tap "Battery Status" 5 times, and you'll see an additional tab with detailed diagnostics.

Method 3: Use of monitoring applications (Ampere, AccuBattery)

Third-party utilities allow you to see the real charging power in real time.

• 📊 AccuBattery (shows current, voltage and estimated charging speed).
• ⚡ Amperé (displays current wattage power).
• 🔋 CPU-Z (Battery tab – data on the health of the battery).

Instructions for AccuBattery:

Connect your smartphone to the ROM and open the application

Go to the "Charging" tab.

Note the value of "power" (in watts)

Compare your adapter’s passport details (see table below)

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Example: If your Xiaomi 13 Pro supports 120 watts, but the app shows 18-22 watts, then:

• Uses a non-original cable (maximum for most third-party cables – 20 watts).
• The adapter does not support Quick Charge 5 or PD 3.0.
• Power saving mode is enabled (disables fast charging).

Critical information: On models with HyperCharge (210 W), the use of a non-original adapter can lead to blocking the accelerated charging function at the firmware level. In this case, even after connecting a branded RAM, you will need to reset your settings through Settings → Memory → Resetting (without deleting data).

Method 4: Test using an engineering menu (#4636##)

The hidden engineering menu allows you to see the current charging state without third-party applications.

1. Open the phone app.
2. Enter the code: ##4636###.
3. Select the item "Battery Information".
4. Note the lines: "Status" must be Charging; "Power source" must be USB (if cabled) or Wireless; "Voltage" and "Temperature" must be voltage and temperature.

If the Health section says Unknown or Dead, it's a sign of a faulty battery. If Technology shows Li-ion instead of Li-poly, the battery is likely worn out (especially for smartphones older than 3 years).

⚠️ Note: On some models (Xiaomi) 12T, Redmi K50) The engineering menu can be blocked, and then use the alternative code: ##6484## (hardware test).

Method 5: Checking the compatibility of the charger

Even if your Xiaomi supports fast charging, the adapter or cable may limit it.

1. Inspect the adapter: The original memory from Xiaomi is marked with maximum power (for example, MDY-12-EU 120W).
2. Check the cable: Fast charging requires a USB Power Delivery-enabled cable (usually a USB-C to USB-C label with the PD logo). Older Micro-USB cables or cheap USB-A to USB-C limit power to 10–18 watts.
3. Test with different RAM: Connect your smartphone to a known adapter (for example, from a laptop with a PD 3.0). If charging accelerated, the problem is your RAM.
4. Check the USB-C port: Connect the charging and move the cable a little. If charging appears, it disappears - the port needs cleaning or replacement.

⚠️ Note: On Xiaomi models with a graphene battery (Redmi Note 12 Turbo, Black Shark 5 Pro), fast charging can automatically turn off at a battery temperature above 40°C. In this case, only cooling the device (for example, removing the cover or using a fan) will help).

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If after all the manipulations fast charging did not work, the reasons are two: 1) malfunction of the power controller on the motherboard; 2) critical wear of the battery (capacity below 60%).

FAQ: Frequent questions about fast charging Xiaomi