How to turn off fast charging on Xiaomi Redmi Note 8 Pro: safe methods and risks

Xiaomi Redmi Note 8 Pro

fast-charging

Quick Charge 3.0

All working ways to turn off fast charging

Redmi Note 8 Pro

It's worth clarifying right away: the manufacturer didn't provide a direct option to deactivate Quick Charge in standard MIUI settings. But that doesn't mean that the task is impossible. Below you will find 3 proven methods - from simple to technically complex - as well as answers to frequent questions about safety and consequences. If you decide to experiment with power settings, be sure to read the warnings in each section.

Before you make any changes, make sure your Redmi Note 8 Pro runs on the current version of MIUI. Some methods may not work on outdated firmware or custom builds. Also remember: any manipulation of the engineering menu or system files you perform at your own risk.

1. Method: Use of a non-original charger

The easiest and safest method is to replace Xiaomi’s standard RAM with a lower power one. Fast charging is activated only when you plug in a compatible adapter (18 watts or higher). If you use a 5V/2A (10 watt) charger, the smartphone will charge in standard mode.

✅ Pros of the method:

• 🔌 No changes to the phone settings are required.
• 🛡️ Safe for the battery (no risk of damage to the software)
• 🔄 It is easy to return fast charging by connecting the original RAM

❌ Cons:

• ⏳ Charging time will increase by 2-3 times
• 🔋 Some non-original adapters can warm up stronger than regular ones

🔍 How to choose the right smog?

Look for adapters with output options 5V/2A or 9V/1.5A (without Quick Charge support), chargers from older Xiaomi models (like Redmi Note 4) or universal adapters from other brands will do. Avoid cheap no-name devices - they can damage the battery.

⚠️ Attention: If the phone still charges fast after you plug in the non-original RAM, check the cable. USB-cables (especially with an e-marker chip) transmit Quick Charge support data even with a conventional adapter.

Method: Disconnection through the engineering menu (for experienced users)

The Redmi Note 8 Pro has an engineering menu where you can change your charging settings, a method that requires caution: incorrect settings can cause your battery to malfunction or even fail.

📱 Step-by-step instruction:

1. Open the phone app and enter the combination: ##4636##
2. In the menu that appears, select Battery Information.
3. Scroll down and find the Fast Charge Config (or similar).
4. Change the value from Enabled to Disabled.
5. Save the changes and restart the phone.

🔧 What to do if there is no Fast Charge Config?

On some versions of MIUI, this parameter may be called differently or hidden, in which case try an alternative path:

##6484##

In the MTK Engineer Mode menu that opens, go to Hardware Testing → Battery and look for options related to Charging.

Make a backup copy of the data

Check the battery charge (at least 50%)

Remember the current settings

Use the original cable to connect-->

⚠️ Warning: After you turn off fast charging via the engineering menu, the phone may start to display charge percentages incorrectly or may be slower to recognize the connected charger, symptoms that usually disappear after resetting or updating. MIUI.

Method 3: Charging control applications

If the first two methods don't work, you can use third-party applications that limit the charging current, which work as a "mediator" between the system and the battery, artificially reducing the charge rate.

📌 Top.-3 apps for Redmi Note 8 Pro:

⚙️ How to set up AccuBattery (without Root):

• 📱 Install the application and provide all necessary permissions.
• 🔋 Go to Charge and activate the option Limit to 80%.
• ⚡ Select Slow Charging in Profile Settings.
• 🔄 Connect the charger - the application will automatically reduce the current.

🔍 Important: Apps without Root rights can't completely disable Quick Charge, only limit speed. Full control will require unlocking the bootloader and installing a custom core, which voids the warranty.

Yeah, to extend the battery life.

Yeah, because of the phone overheating.

No, I like fast charging.

I tried it, but went back to standard settings.-->

4. Alternative solutions: how to reduce the load on the battery

If the goal is to extend the life of the battery, turning off fast charging is not always justified. There are more efficient ways to treat the battery that do not require radical changes.

🔄 5 Workplace Advice:

• 🔋 Avoid full discharge and 100% charge. Optimal range is 20-80%. Use apps like AccuBattery to control.
• 🌡️ Do not charge your phone in extreme temperatures. Ideal range is 10-35°C. Overheating (>40°C) the chemical processes in the battery are accelerated, reducing its lifespan.
• 📵 Turn off mobile data and Wi-Fi at night. Background network activity drains the battery even in sleep mode.
• 🔄 Update. MIUI The new firmware optimizes power management algorithms.
• 🔌 Use high-quality cables. Damaged wires increase resistance, which leads to overheating and unstable charging.

📊 Comparison of methods of extending the life of the battery:

💡

If you frequently charge your phone overnight, turn on the option Settings → Battery → Scheduled charging in the MIUI settings. It will automatically complete charging by the specified time, avoiding a prolonged stay of 100%.

5 Possible problems after fast charging is turned off

Even if you successfully deactivate Quick Charge, there may be some unexpected consequences, and let's look at the most common ones and how to fix them.

🔴 Problem 1: The phone does not recognize the charger

After changes in the engineering menu, the smartphone can give an error “No Charging is supported” or slowly charge even with the original RAM.

🔧 Solution: Reset the engineering menu settings to factory or execute a command via ADB:

adb shell settings put global battery_charging_enabled 1

🔴 Problem 2: Battery discharges faster than usual

This is because the system continues to expect high charging current but does not receive it, resulting in increased power consumption of the power controller.

🔧 Solution: Rotate changes or install a custom core with optimized charging options (Root required).

🔴 Problem 3: Overheating during charging

Paradoxically, turning off the Quick Charge sometimes leads to increased heating, which is due to unstable current from an incompatible charger.

🔧 Solution: Use only certified adapters and check the battery temperature in the app CPU Monitor.

⚠️ Warning: If the phone starts to turn off when connected to the RAM after the fast charge is turned off, this is a sign of a malfunction of the power controller. Immediately return the standard settings and contact the service center.

6.Myths and truths about fast charging on Redmi Note 8 Pro

There's a lot of rumors going around charging technology, and let's see what's true and what's wrong.

🔍 Myth 1: Fast charging kills battery in six months

❌ Not exactly. Modern lithium-polymer batteries are designed to run 500 to 800 charge cycles, regardless of speed, but Quick Charge does increase heat generation, which can reduce capacity by 5 to 10 over time%.

🔍 Myth 2: Slow charging is always safer

✅ Right, but with reservations, electric charge. 1A It heats the battery less, but if you use low-quality RAM, the risk of damage will only increase.

🔍 Myth 3: After you turn off Quick Charge, your phone will charge forever

❌ Exaggeration: Charging time will increase by about 2 times (from 1.5 to 3 hours at 0.

🔍 Myth 4: Fast charging only works with the original cable

✅ Partly right. Supported cables. USB Power Delivery or Quick Charge (with an e-marker chip) delivers top speed. Conventional cables limit current to 2A.

FAQ: Frequent questions about turning off fast charging

💡

Turning off fast charging is only advisable in three cases: if you notice the battery overheating, if you want to maximize its life, or if you use a low-quality charger. In all other situations, it is enough to follow the rules of careful handling of the battery.