Fast charging in Xiaomi smartphones is a handy feature that allows you to restore 50-70% of battery capacity in 30-40 minutes. However, this advantage has the flip side: intense currents heat the battery, accelerating its degradation. If you notice that the phone began to discharge faster after a year of use, or just want to extend the battery life, turning off fast charging may be the solution.
In this article, we’ll look at all the ways you can deactivate a feature, from standard MIUI settings to hidden engineering menu commands, which Xiaomi models support fast charging, how to do it without root rights, and what to do if the option is inactive, and we’ll also analyze how much battery wear is actually reduced after the feature is turned off, with links to tests and studies.
Important: the procedure differs depending on the firmware version (MIUI 12, 13, 14 or HyperOS) and the smartphone model. For example, on the Redmi Note 10 Pro, the path to settings will be one, and on Xiaomi 13 Ultra – another. We covered all the current options, including devices with support for Quick Charge 3.0/4.0 and proprietary technology Xiaomi Turbo Charge.
Why you should turn off fast charging on Xiaomi
The main reason is the extended battery life: Lithium-ion and lithium-polymer batteries degrade faster when:
- 🔥 High temperatures (above) 30°C accelerates wear on 20-40% yearly)
- ⚡ Rapid charge/discharge cycles (currents) 5V/3A and heat up the elements higher)
- 📉 Deep discharges (below 10% capacity) and recharge (above 90%)
A study by Battery University shows that a battery charged with 1C (standard speed) loses 20% of its capacity after 500 cycles. When charged with 2C (a typical fast charging scenario), the same wear and tear occurs after 300-350 cycles. For users who have been holding a smartphone for 2-3 years, the difference can be 15-25% of the original capacity.
Other reasons to disable the function:
- 💥 Overheating of the case during charging (relevant for gaming smartphones like Black Shark or POCO F)
- 🔌 Incompatibility with cheap charging (risk of damage to the power controller)
- 📱 Problems with battery calibration (jumping percentage of charge due to unstable currents)
⚠️ Warning: Turning off fast charging doesn't guarantee perpetual battery: modern batteries lose 1-2% And even under ideal conditions, this method can delay the replacement of the battery. 6-12 months.
Method 1: Disconnect via standard MIUI settings
The easiest method is to use built-in firmware options. It works on most Xiaomi, Redmi and POCO models with MIUI 12 and later, including HyperOS. Except for budget devices (such as the Redmi 9A or POCO C31), where the feature may not be available.
Instructions:
- Open the Settings app (cog icon).
- Go to Battery and Performance (on some models, just Battery).
- Select Battery Settings → Charging Mode (or Quick Charging).
- Deactivate the Fast Charging switch or select the Standard Charging option.
On MIUI 14 and HyperOS, the path may be slightly different:
Settings → Battery → Sign gear (in the upper right corner) → Charging modeIf there is no option, check:
- 🔍 Firmware version (update to the latest via Settings) → The phone. → Updating the system)
- 📱 Model of the device (on some, for example, Xiaomi Mi) A3 With pure Android, the function is managed differently)
- 🔌 Type of connected charger (some models disable the option if a non-original adapter is used)
Check out the MIUI version in About Phone
Connect the original charger
Charge your phone to 30-50% for testing
Restart the device after the changes-->
Method 2: Use the engineering menu (#4636##)
If standard settings don’t allow you to turn off fast charging, you can use the engineering menu, which works on 80% of Xiaomi devices, but you need to be careful – wrong actions can lead to failures.
Steps:
- Open the Phone app and enter the combination: ##4636##.
- In the menu that appears, select Battery Information.
- Scroll down to the AC Charge or USB Charge section.
- Click on the current value (e.g. 500 mA or 1500 mA) and select 500 mA (standard charging) or 900 mA (moderate).
Warnings:
- 🚨 Changes to the engineering menu are not saved after the restart on some models.
- 🔧 On devices with MediaTek (e.g. Redmi Note 11), you may need an additional command #36446337## to access advanced settings.
- ⚠️ Do not change other options in the engineering menu – this can lead to network loss or overheating of the processor.
What to do if the engineering menu is not opened?
| Xiaomi model | Supports disconnection through settings | Supports the Engineering Menu | ADB is required |
|---|---|---|---|
| Xiaomi 13/13 Pro | Yes (MIUI 14) | Yes (#4636###) | No. |
| Redmi Note 12 Pro+ | Yes (HyperOS) | Yes (#36446337##) | No. |
| POCO F5 | Partially (standard charging only) | Yes. | No. |
| Xiaomi Mi 11 Ultra | No (only via ADB) | Yes, but without saving. | Yes. |
| Redmi 10C | No. | No. | Yes. |
Through the standard MIUI settings
Engineering menu (#4636###)
ADB-team
Apps from Google Play
Another option-->
Method 3: Disconnect via ADB (for advanced users)
If previous methods have failed, you can use Android Debug Bridge (ADB), a universal approach that requires a computer connection and basic command line knowledge, and is suitable for all Xiaomi models, including those where the feature is blocked by the manufacturer.
Step-by-step:
- Download and install ADB Tools on PC.
- Enable USB Debugging on your phone: Settings → About Phone → MIUI Version (click 7 times) Settings → Additional → For Developers → Debugging on USB
- Connect your phone to your PC and execute: Adb devices (your device should appear)
- Enter the command to disable fast charging: adb shell settings put global battery_charging_control_limit 500 (where 500 — current in mA; for standard charging use 500-900)
- Reset the device.
To return fast charging, use:
adb shell settings put global battery_charging_control_limit 0⚠️ Note: Some Xiaomi firmware (especially Chinese) ADB-commands may be reset after the system update, and there is a risk of blocking charging if you specify an incorrect current value (for example, 0 or 10000).
To check the current limit, use:
adb shell settings get global battery_charging_control_limit1. Install Xiaomi USB Drivers drivers from the official website.
2. switch the connection mode from "Charging" to "Transfer of files".
3. Use the adb kill-server command → adb start-server in the terminal.-->
Method 4: Applications for charging control (without root)
If you don't want to mess with settings or ADB, you can use third-party apps, which don't turn off fast charging completely, but limit current to safe values.
- 📱 AccuBattery (free, with purchases inside) Monitors battery health and allows you to set a charging limit (for example, up to 80.
- ⚡ Battery Charge Limit (requires) ADB-Allows you to set a rigid limit of current (for example, 1000 mA) and temperature. MIUI 12+.
- 🔋 Fast Charge Switcher (for Qualcomm chips) Switches charging modes (fast/standard) to one tap.
How to set up AccuBattery:
- Install the app from Google Play.
- Complete the initial calibration (charging to 100% and discharging to 0%).
- Go to Charge → Charge limit and set the value of 80%.
- Activate the option to limit current and select 1000 mA.
Limitations of applications:
- 🚫 Not working on locked bootloaders (most Xiaomi defaults).
- 🔄 May be reset after firmware update.
- 📉 Some features (such as the 80% limit) require the application to run in the background, which in itself consumes the battery.
💡
Apps like AccuBattery don't physically turn off fast charging, they limit it. Use standard settings or ADB to completely disable it.
What to do if nothing works: alternative solutions
If none of these methods worked, consider these options:
- 🔌 Use a non-original charger Some adapters (e.g., with output) 5V/1A) They automatically switch the phone to standard charging mode. Chargers from older Samsung or Nokia models will do.
- 🔋 Charge through. USB-port USB 2.0 gives a maximum of 500 mA, and USB 3.0 – up to 900 mA. These are safe values for long-term charging.
- 📱 Activate the "Battery Saving" mode in Settings → Battery → Battery mode select Charge Savings. On some models, this reduces the charging current to 1000-1200 ma.
- 🔧 Install custom software (for advanced) Firmware like LineageOS or Pixel Experience allows you to flexibly configure charging settings. Requires unlocking the bootloader.
If the problem is hardware constraint (e.g., the charging controller does not support fast charging), there are two options:
- Use an external power bank with a 5V/1A output.
- Contact the service center for firmware modified EEPROM power controller (risky, may deprive of warranty).
Can I physically unplug the resistor to turn off fast charging?
How to check if fast charging is actually off
To make sure the changes are in effect, follow these steps:
- Connect the phone to the charger.
- Open the AccuBattery app or the built-in battery menu (Settings → Battery).
- Check the current charging current (should be within 300-900mA for standard mode).
- Pay attention to the time before full charging: 🔋 Fast charging: 0-100% post 40-60 minute. ⚡ Standard charging: 0-100% post 2-3 hour.
hull-temperature
Additional features:
- 📊 The charge notification will disappear the words “Fast Charge” or “Turbo Charge.
- 🔌 Quick Charge-enabled charger will be defined as a normal charger (5V/1A).
- 📉 Charging schedule in AccuBattery will become more smooth (without sharp surges of current).
⚠️ Note: Some Xiaomi models (e.g. Xiaomi) 12T Pro with charging 120W) Even after switching off fast charging, the current can briefly rise to 1500-2000 first 10-15 It's normal -- that's how the pre-charging algorithm works.