Xiaomi Redmi Note 8T is equipped with fast charging technology Quick Charge 3.0, which allows you to restore 50% of the battery capacity in 30-40 minutes. However, not all users want to use this mode: someone is afraid of battery wear, someone does not like the heating of the device, and some simply prefer a “sparing” mode to extend the life of the smartphone.
In this article, we’ll look at all the working ways to turn off fast charging on the Redmi Note 8T, from standard MIUI settings to hidden engineering menus. We’ll also explain why the manufacturer doesn’t always give direct access to this feature, and what the real consequences for the battery can be if you’re looking for a way to reduce the heat of your phone while recharging, or just experimenting with settings, here are the answers.
Important: All methods are tested on MIUI 12-14 firmware (Android 10-12).If your Redmi Note 8T runs on older or customized firmware, some menu items may differ.
Why do users want to turn off fast charging?
Quick Charge technology speeds up charging, but it also has a downside, and here are the main reasons why Redmi Note 8T owners are looking for a way to deactivate it:
- 🔥 Overheating of the device. With fast charging, the body temperature can rise to 40-45°C, which is uncomfortable when using the phone while recharging.
- 📉 Battery wear. Lithium-ion batteries degrade faster at high charge currents. Shutting down Quick Charge theoretically extends lifespan by 10-15%.
- ⚡ In regions with frequent power surges, fast charging can cause failures or even damage to the power controller.
- 🔌 Incompatible chargers: Cheap or unoriginal adapters sometimes conflict with the Quick Charge protocol, causing errors.
On the other hand, the manufacturer does not recommend turning off fast charging for no good reason. Xiaomi smartphones have built-in battery protection mechanisms, including temperature control and current restriction at critical values. However, if you are firmly determined to switch to standard mode, read on.
Method 1: Disconnect via MIUI settings (official method)
The easiest and safest way to do this is to use the built-in MIUI options. Unfortunately, on the Redmi Note 8T, this feature is hidden by default, but it can be activated through the developer menu.
Instructions:
- Open the Settings. → The phone.
- Find the MIUI version and tap it 7 times in a row until you become a developer!
- Return to the main settings menu and select Additional settings → Developer settings.
- Scroll down and find the option to turn off fast charging (or Quick Charge disable on English firmware).
- Activate the switch and confirm the action.
After that, the phone will charge in standard mode (usually ~5V/1A instead of 9V/2A).Please note: on some versions of the MIUI, this item may be called differently, for example, Limit the charging current.
☑️ Preparing for Quick Charge Disconnection
⚠️ Attention: On firmware MIUI 13+ In this case, use the engineering menu or third-party utilities.
Method 2: Engineering menu (for experienced users)
If the developer's options don't have the right option, you can try disabling Quick Charge through the engineering menu, which requires caution - incorrect actions can lead to malfunctions in the power module.
Step-by-step:
- Open the Phone app and enter the combination: ##4636##.
- In the menu that appears, select Battery Information.
- Find Fast Charge Config or Quick Charge (the name may vary).
- Select Disable or Standard Charge.
- Save the changes and restart the phone.
If #4636### doesn’t work, try the alternative code.
##36446337##After applying the settings, check the charging current with the AccuBattery app (available on Google Play). In standard mode, it should not exceed 1000-1200 mA.
What to do if the engineering menu is not opened?
Method 3: Third-party applications (alternative)
If the first two methods didn't work, you can use specialized utilities.
- 📱 AccuBattery – shows the current charging current and allows you to limit it to safe values (root required for full control).
- ⚡ Quick Charge Disabler is a small application that forcibly disables the Quick Charge protocol at the system level (does not work on all devices).
- 🔧 Kernel Adiutor for advanced root users, allows you to fine-tune power settings, including current restriction.
Warning: Most applications require unlocking the bootloader and root rights, which cancels the warranty and increases the risk of system damage, and only use them if you are confident in your actions.
⚠️ Note: Apps like AccuBattery can only monitor charging current, but they can’t always limit it.
Table: Comparison of methods for shutting down fast charging
| Method | Difficulty | Root is required. | Risks. | Efficiency |
|---|---|---|---|---|
| MIUI settings | ⭐ (simple) | ❌ No. | Absent. | High (if the option is available) |
| Engineering menu | ⭐⭐ (middle-of-the-road) | ❌ No. | Failure of power settings | Medium (depending on firmware) |
| Third-party annexes | ⭐⭐⭐ (difficult) | ✅ Yes (often) | Loss of warranty, damage to system | High (if properly set up) |
| ADB-team | ⭐⭐⭐⭐ (skilled) | ❌ No. | Mistyping errors | Tall. |
As you can see from the table, the safest way to do this is to use the built-in MIUI settings. If they're not available, the engineering menu becomes a compromise, and third-party utilities and ADBs are only a last resort.
What happens if you charge your phone without a quick charge?
Many users fear that turning off fast charging will negatively affect the performance of the smartphone.
- ⏳ Increased charging time: Instead of 1.5-2 hours, it can take 3-4 hours to fully charge (depending on battery capacity and charger).
- 🌡️ Reduced heat: The body temperature for standard charging rarely exceeds 35°C, which is more comfortable for the hand and less harmful to the battery.
- 🔋 Potential increase in battery life: At lower currents, the degradation of lithium-ion cells slows by 10-20%, according to Battery University research).
- ⚠️ Possible malfunctions with non-original RAMs: Some cheap chargers do not work properly in standard mode, which can lead to slow or intermittent charging.
Critical: If you use your phone intensively while charging (games, video editing), disabling Quick Charge can cause the battery to run out despite the power on, in which case the current exceeds the charging current, and the battery capacity gradually decreases.
💡
To check the actual charging current, install the Ampere app (free on Google Play) which shows current consumption and charging speed in mA. In standard mode, the value should be between 500-1200 mA.
How do you get the fast charge back?
If you change your mind or have problems after you turn off Quick Charge, it’s easy to get it back:
- For the method via MIUI: Go to Developer Settings and deactivate the option to Disable Fast Charging.
- For the engineering menu: Repeat the steps and select Enable or Fast Charge.
- For third-party applications: remove the utility or reset its settings.
If the phone still charges slowly after returning to fast charging, check:
- 🔌 Cable and charger (try the original RAM from the kit).
- 🔋 Battery status (C Settings) → Battery. → Status).
- 📱 Temperature of the device (when overheating, the system automatically limits the current).
⚠️ Note: If after manipulating the settings, the phone stopped charging at all, reset to factory settings (Settings) → Additionally. → Recovery and reset. In extreme cases, you will need to flash through the Fastboot.
💡
Turning off fast charging doesn't void the warranty if you haven't used root or custom firmware, but when you go to the service center, it's best to return the settings to factory values.