Why do Redmi Note 10S owners want to turn off fast charging?
Xiaomi Redmi Note 10S is equipped with 33W fast charging technology, which allows you to recover 100% of battery power in less than an hour, but not all users are happy with this feature, the main reasons are overheating the device during charging, accelerated battery wear and even unstable operation when using non-original chargers.
The manufacturer claims that modern lithium polymer batteries are designed for hundreds of cycles of fast charging, but practice shows that when used intensively, the battery capacity can decrease by 15-20% in 1.5-2 years. This is especially noticeable in users who charge the phone several times a day in short sessions (10-80%), this mode is the most destructive for the battery.
In this article, we’ll take a look at all the ways you can turn off fast charging on the Redmi Note 10S, from standard MIUI settings to hidden engineering menus, and how to check if the feature is deactivated, and what alternative methods will help keep the battery healthy.
Method 1: Disconnect via standard MIUI settings
The easiest and safest method is to use the built-in MIUI options, but not all firmware versions support this feature directly.
- Open Settings → Battery and Performance.
- Go to Charge (or Charge settings in new versions).
- Find the Fast Charging or Turbo charging switch.
If there is no such option, then your version of MIUI does not support manual shutdown through the menu, in which case try updating the firmware or using alternative methods described below.
Check the version of MIUI in Settings → About the phone
Connect the original charger
Charge your phone to at least 30% for stable operation
Backup important data (in case of failure)
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Important! Some versions of MIUI 12.5-14 may have the fast charging option hidden, sometimes requiring:
- 🔍 Activate Developer Mode (7 times press the Version) MIUI phone).
- 🔄 Reboot the phone after activation of the mode.
- 📱 Use the original cable and power adapter from Xiaomi.
Method 2: Use of the MTK Engineer Mode
If the standard settings didn’t work, you can use the MediaTek engineering menu, since the Redmi Note 10S is built on the Helio G95 chipset, a method that requires caution, as incorrect actions can lead to malfunctions in the device.
- Open the Phone app and enter the combination: ##36446337###.
- In the menu that opens, select Battery (or Battery).
- Find the Fast Charging option and set the Disable value.
- Save the changes and restart the phone.
⚠️ Note: Not all versions of the engineering menu support this setting. If you do not find Fast Charging, do not change other settings - this can disrupt the stability of the smartphone.
What to do if the engineering menu is not opened?
After turning off fast charging through the engineering menu, it is recommended to check the actual charging speed using applications like AccuBattery or Ampere. If the speed remains the same (more than 15-18 watts), then the changes have not taken effect.
Method 3: Disconnect via ADB (for power users)
If previous methods have failed, you can use Android Debug Bridge (ADB), which requires connecting your phone to your computer and basic command line knowledge.
Step-by-step:
- Download and install ADB Tools on PC.
- Activate debugging by USB in Settings → About Phone → MIUI version (7 times press) → Additional settings → Developer settings → Debugging by USB.
- Connect your phone to your computer and type in the command line: adb shell settings put global fast_charge 0
- Reset the device.
⚠️ Note: Not all versions MIUI If the fast charge continues to work after the reboot, try an alternative command:
adb shell settings put global charging_speed 0Through the standard MIUI settings
Engineering Menu (MTK)
ADB-team
I use third-party apps.
I'm not turning off fast charging.
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After completion ADB-If the charging speed has dropped to 5-10 watts, then the shutdown has been successful. Otherwise, return the settings to the original state with the command:
adb shell settings delete global fast_chargeMethod 4: Using Third-Party Applications
If you don't want to mess with the engineering menu or ADB, you can use third-party utilities.
- 🔋 AccuBattery – allows you to limit the charge to 80% and track the charging speed.
- ⚡ Battery Charge Limit – sets a charge limit (requires root rights).
- 📊 3C Toolbox - Advanced battery settings (root rights are also needed).
Most applications that restrict charging require root access, which cancels warranty and can cause the phone to run in an unstable way, and without root rights, they are severely limited in their functionality, only to monitor battery status, but not to control charging.
If you decide to use AccuBattery, look at Battery Health. The app shows the actual battery capacity and the number of charging cycles. For example, if the original capacity was 5,000 mAh and the current capacity was 4200 mAh, this is a signal of serious wear (over 15%).
How to check that fast charging is actually turned off?
Turning off fast charging is half the battle, making sure the changes are in place.
| Method of verification | Expected output | Notes |
|---|---|---|
| AccuBattery application | Charging speed ≤ 10 W | Accuracy ±5% |
| Appendix Ampere | Charging current ≤ 1500 mA | Depends on the firmware. |
| Original power supply unit | The phone does not show a notification "Fast Charging" | It doesn’t work on all versions of MIUI. |
| Full charge time. | ≥ 2.5–3 hours (from 0% to 100%) | When using 5W/10W charging |
If the phone is still warming or charging too fast after the fast charge is turned off, it is possible to:
- 🔌 You are using a non-original cable/power supply with support for fast charging.
- 📱 Phone firmware resets settings after update.
- 🔧 Fast charging is only partially disabled (e.g., remained active in Safe Mode).
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If the phone continues to warm up while charging, try removing the case and putting it on a hard surface (not on soft tissue), which can be caused not only by fast charging, but also by background processes or a damaged battery.
What do you do if nothing helps?
If none of these methods worked, your version of MIUI may block the software-level fast charging shutdown, leaving the following options:
- Use the charger without fast charging support (5W/10W). For example, an old charger from the iPhone or inexpensive USB-adapter.
- Limit the charge to 80% via MIUI settings (if available) or apps like AccuBattery.
- Contact a custom software firmware service center (for example, LineageOS), where you can flexibly configure charging parameters.
⚠️ Note: Installation of custom firmware (custom) ROM) It deprives of warranty and can lead to data loss or unstable operation of the camera / sensors.Be sure to back up through Settings before firmware. → Additionally. → Backup and reset.
If you're not willing to take risks, the best way to do this is to buy an external power bank without fast charging and use it for everyday recharging, which will reduce the load on the main battery and extend its life.
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Turning off fast charging doesn’t guarantee eternal battery health, and it’s more important to avoid full discharges (below 10%) and keep your phone charging for more than 12 hours at a time.