How to completely turn off energy savings on Xiaomi Redmi 8: all ways

Xiaomi Redmi 8 is one of the most popular budget smartphones with excellent value for money, but its MIUI Battery Saver energy saving system is often a source of irritation. Users complain about spontaneous switching off background processes, notification delays and sudden performance restrictions. If you are tired of the fact that the phone “saves” where it is not needed, this article will help completely turn off all types of energy saving, including hidden settings that are not written in the official instructions.

It is important to understand that Redmi 8 is based on the MIUI (The 10-14 version, depending on the firmware, is power savings implemented on multiple levels, not only the obvious Battery Mode in the settings, but hidden application constraints, background optimization, and even the hardware limits of the Snapdragon 439 processor. We will discuss all methods, from basic to advanced, including: ADB-commands and edit configuration files (for power users).

Warning: a complete power-saving shutdown can reduce battery life by 15-30% (on tests on the Redmi 8 with a battery of 5000 mAh), but you will get stable operation of messengers, geolocation and background tasks without “hanging”.

Basic methods: disabling through MIUI settings

So, to start with the simplest, standard MIUI tools, even here, there are pitfalls: some options are hidden in the back of the menu or work in a non-obvious way.

The first step is to turn off the battery saving mode:

1. Open the settings → Battery and performance.
2. Slip on Battery Mode.
3. Choose No Limits (or High Performance if available).

Note

MIUI 12+

Energy conservation

Smart battery

The second step is to turn off adaptive brightness, which also indirectly affects power consumption:

1. Go to Settings → Display.
2. Turn off the Adaptive Brightness option.
3. Set the fixed brightness at a comfortable level (recommended 50-70%).

Adaptive brightness not only annoys with constant jumps in backlight, but also actively uses the light sensor, which adds 2-5% to the battery consumption per day.

Disable "Battery mode"|Remove adaptive brightness|Set a fixed brightness|Check the "Smart Permission" (if available)-->

The third thing is application optimization, and by default, MIUI aggressively closes the background processes:

1. Go to Settings → Applications → Application Management.
2. Select the application you want (such as Telegram or Google Maps).
3. Select Energy Saving and select No Limitations.
4. Activate the AutoRun option (if available).

It's important.

WhatsApp

Showing notifications

2. Hidden settings: disabling MIUI Optimization

MIUI Optimization is a system service that manages background activity, animations, and even limits the clock speed of the processor to save charge. It can not be turned off through the standard menu, but can be deactivated through the developer.

Instructions:

1. Activate Developer Mode: Go to Settings → About Phone. Tap 7 times on MIUI Version (you will be notified "You are a developer").

Settings → Additional → For Developers

MIUI Optimization

Optimization of MIUI

Turn it off.

Reboot your phone (required!).

After disabling this option, background applications will work more stable, but battery consumption will increase by 10-20%.

Redmi 8

MIUI 12.5

Another hidden parameter is background optimization, to turn it off:

1. In the Developer Settings, find Background Process Limitation.
2. Select No Limits (or a maximum value, such as 8 processes).

Step-by-step:

1. Connect Redmi 8 to your computer and select File Transfer mode.
2. Open the command line (Windows) or terminal (macOS/Linux) in the folder with the platform-tools.
3. Enter the command to check the connection: Adb devices must appear serial number of your device.
4. Disable all types of energy saving: adb shell dumpsys deviceidle force-idle adb shell settings put global low_power_mode 0 adb shell settings put global adaptive_battery_management_enabled 0
5. To disable restrictions for a specific application (e.g. Telegram): adb shell dumpsys battery unplug adb shell am set-inactive org.telegram.messenger false

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If so, ADB-commands the phone has started to overheat, return the settings with the command adb shell dumpsys deviceidle unforce and restart the device.

Warnings:

⚠️ Attention: ADB-Commands are reset after update MIUI. You will have to repeat the procedure after each update.

⚠️ Warning: Some commands (e.g., force-idle) can lead to accelerated battery discharge (up to 40% in 6-8 hours of standby time).

4. Editing system files (for advanced)

This method is only suitable for users with an unlocked bootloader and a TWRP installed. It allows you to permanently turn off energy saving at the system configuration level, but requires caution.

What needs to be done:

1. Set up Root rights (for example, through Magisk).
2. Use a root-enabled file manager (such as Root Explorer).
3. Go to /system/etc/ and find the powerhint.json file.
4. Open the file in the text editor and replace the line: "power_save_mode": true "power_save_mode": false
5. Save the changes, set the rights 644 (rw-r-----).
6. Reboot the phone.

An alternative method is to edit the build.prop file:

1. Open /system/build.prop in the text editor.
2. Add a line to the end of the file: ro.config.low_battery_prompt=false ro.config.low_battery_threshold=5
3. Save and reboot.

This will turn off low charge warnings and lower the saving threshold.

Yeah, a lot |Tryed a couple of times |No, I'm afraid |I don't know what it-->

5. Alternative ways of optimization without turning off energy saving

If you need your phone to work stably, but at the same time does not lose autonomy, try compromise solutions:

Ways to reduce the impact of energy saving without completely shutting down:

• 🔋 Eliminate Critical Apps from Optimization: Go to Settings → Battery. → Battery optimization. Tap all applications. → pick out → Not optimize.

Set up the Adaptive Battery

1. In Settings → Battery turn off the Adaptive Battery.
2. Enable Background Limitation for applications only for unnecessary programs.
3. 📵 Disable unnecessary services: Geolocation for applications that don't use it; Autosynchronization for accounts (e.g. Mi Account); Background data transfer for social networks.

These programs allow you to point-to-point adjust energy consumption without sacrificing autonomy.

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Even with power saving enabled, you can achieve stable operation of messengers and navigators if you correctly configure exceptions for applications.

6.Consequences of power saving shutdown: what to expect

Before you turn off all the restrictions, check out the possible consequences. We tested the Redmi 8 in different modes and made a table:

Additional effects:

• ✅ Notifications come without delay (relevant to WhatsApp, Viber).
• ✅ Geolocation works more accurately (important for Google Maps, Yandex.Navigator).
• ✅ Music and podcasts are not interrupted in the background.
• ❌ The battery goes down faster when it is down (for example, 10-15% can go overnight instead of 2-5%).
• ❌ The phone can warm up with long loads (games, video).

7. Frequent mistakes and how to avoid them

Many users face problems after power cuts, and consider common mistakes and solutions:

Problem 1: After MIUI Optimization was turned off, the phone started to slow down.

• 🔹 The reason: the system no longer restricts background processes, which is why memory is overloaded.
• 🔹 Solution: Clear the cache in Settings → Memory. → Clean. Turn off auto-run for unnecessary apps. Install Greenify to manage background tasks.

Problem 2: The battery goes down too quickly (more than 1% per minute in idleness).

• 🔹 Reason: All restrictions are disabled and systems (such as Android System or MiuiDaemon) are actively consuming power.
• 🔹 Solution: Check battery consumption in Settings → Battery. → Disable background activity for unnecessary system processes (via ADB Return some of the restrictions (e.g., turn on the Adaptive Battery for system applications only).

Problem 3: After editing build.prop, the phone doesn’t turn on.

• 🔹 Reason: Incorrectly edited file or incorrect access rights.
• 🔹 Solution: Boot in TWRP and restore backup build.prop. If there is no backup, download the original file for your version MIUI Set the file rights 644.