How to turn off fast charging on Xiaomi Redmi Note 5: 3 proven ways

Xiaomi Redmi Note 5 is one of the most popular smartphones of the brand, but its quick charging feature (Quick Charge 3.0) does not always live up to expectations. Many users face overheating of the device, accelerated battery wear or simply prefer a standard charging mode to extend the battery life. In this article, we will discuss all possible ways to turn off fast charging, including hidden settings and engineering menus.

It is important to understand that the manufacturer does not always provide a direct option to deactivate this feature. ADB, We tested all the ways on the Redmi Note 5 with firmware. MIUI 9-12 – The results are summarized in the comparison table below.

Why you should turn off fast charging on the Redmi Note 5

Fast charging is convenient, but not always good for battery life, and the main reasons why users are looking for ways to turn it off are:

• 🔥 Overheating of the body during charging (especially when using non-original adapters).°C, which is critical for lithium-ion batteries.
• 📉 Accelerated battery degradation: With constant fast charging, battery capacity decreases by 15-20% after 1-1.5 years of active use.
• ⚡ Unstable operation when connected to weak power sources (for example, USB-PC or power bank with low current).
• 💰 Savings on battery replacement.The new battery for the Redmi Note 5 costs between 1500-2500 ₽, And her replacement is another 1,000-1500. ₽.

The manufacturer Xiaomi does not advertise this fact, but in the technical documentation for the smartphone stated that the optimal temperature for charging is 10-35 ° C. If you exceed this range, the battery controller automatically reduces the current, but this does not save from long-term wear. If you notice that the phone has become faster discharged or heat up even during normal use, turning off fast charging can be a temporary solution.

Method 1: Disconnect via MIUI settings (official method)

The easiest way is to use the built-in MIUI options. Unfortunately, on the Redmi Note 5, this feature is hidden in the menu depth and not available on all firmware versions.

1. Open Settings → Battery and Performance.
2. Go to Charge section (on some firmware it is called Battery Settings).
3. Find the Quick Charge or Quick Charge and switch the slider to the Off position.

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

1. Press the Settings icon on the home screen, then select Application Information.
2. Click on the three dots in the upper right corner and select the MIUI version, tap it 7-10 times until a notification appears to unlock Additional Settings.
3. Return to Settings → Battery and check for a new Charging Mode.

Important! On MIUI 10 firmware and below, this method only works with the original Xiaomi charger. If you use a third-party adapter, the option may not be available.

Method 2: Use of an engineering menu (for power users)

If standard settings do not help, you can use the Engineering Mode, which requires caution, as improper actions can lead to malfunctions in the smartphone.

Instructions:

1. Open the phone app and enter the combination: ##4636##
2. In the menu that appears, select Battery Information.
3. Scroll down and find Fast Charge Config or Quick Charge.
4. Click on it and select Disable.
5. Save the changes and restart the device.

If the #4636### combination doesn’t work, try the alternative codes for Xiaomi:

• #6484## - battery test
• #64663## - Menu of hardware testing
• #2846579## - Project menu (requires Version Info → Hardware Test selection).

On the Redmi Note 5 with MIUI 11 firmware and later, the engineering menu can be blocked, in which case you will need to unlock the bootloader or use ADB.

Method 3: Disconnect via ADB (for advanced users)

If previous methods have failed, the Android Debug Bridge (ADB) is a universal tool for managing Android devices via a computer, and the wrong commands can disrupt the system!

Step-by-step:

1. Download and install ADB Tools on PC.
2. Turn on USB Debugging: Go to Settings → About Phone. Tap 7 times on MIUI Version to activate Developer Mode. Go back to Settings → Additional → For Developers and turn on USB Debugging.

Connect your phone to your PC through USB-cable (preferably original).

ADB

adb devices

(Your device name should appear. If not, check the drivers.)

adb shell


settings put global fast_charge 0

After you've done the commands, restart your phone. To get the charge back, use:

settings put global fast_charge 1

⚠️ Attention, some firmware. MIUI This command may reset after the system update, and there is a risk that the manufacturer will block this option in future versions of the software.

Comparison of methods of shutting down fast charging

To choose the best way, read the comparative table:

If you are not sure about your skills, we recommend starting with the simplest method – replacing the charger with a regular one (with a current of 1-2 A).

💡

Before using ADB, back up your data via Mi Cloud or locally, and in the event of a crash, this will help you recover contacts, photos and apps.

What happens after the fast charging is turned off?

Many users fear that disabling this feature will negatively affect the smartphone.

• ⏳ Increased charging time: Instead of 1.5-2 hours to 100%, it will take 3-4 hours (depending on battery capacity and charger current).
• 🌡️ Reduced body temperature. Phone will heat up to a maximum of 35-40°C (versus 45-50)°C for fast charging).
• 🔋 Extending battery life: With standard charging, the battery loses only 5-10% of capacity per year (versus 15-20% with Quick Charge).
• ⚡ More stable operation at low charge level. Without fast charging, the smartphone is less likely to turn off with 5-10% of the battery.

There are downsides:

• 🔌 Inconvenience during urgent recharging (for example, before leaving the house).
• 📱 There may be errors in determining the type of charging (the phone can show “Slow Charging” even with the original adapter).

⚠️ If after switching off fast charging, the phone stopped charging at all, check:

1. Cable and adapter for damage.
2. Settings USB-The slacks (maybe they have been thrown off).
3. Temperature of the device (when overheating, the controller blocks charging).

💡

Disabling fast charging does not affect the warranty Xiaomi, as it is a software setup, however, physical intervention (for example, soldering of the controller) voids warranty obligations.

Alternative solutions to extend battery life

If your goal is to keep your battery as high as possible, turning off fast charging is only part of the solution.

• 🔄 Calibrate the battery: Every 2-3 months, completely discharge the phone to 0% and charge to 100% without interruptions.
• 🌙 Night charging. Use Air Mode or turn off mobile data overnight to reduce load.
• ☀️ Avoid extreme temperatures: Do not leave your phone in the sun or near heat sources (e.g., on a car torpedo).
• 🔌 Use quality accessories: Xiaomi's original cables and adapters reduce the risk of overheating.
• 📵 Turn off background processes. Close unused applications through Settings → Annexes → Launched.

You can use apps like AccuBattery (available on Google Play) to automatically monitor charging cycles, temperature, and recommendations for optimization.

⚠️ Attention! Don't use applications that promise to "restore battery capacity" is a hoax. The only way to get back to the original performance is to replace the battery.

FAQ: Frequent questions about turning off fast charging