Owners of Xiaomi Redmi 8 often face a situation when the battery is reduced to critical values by the middle of the day, and the screen goes out at the most inopportune moment. Despite the fact that the device is equipped with a capacious battery of 5000 mAh, the software processes and settings by default can significantly reduce real battery life. Understanding how the system components consume energy is the first step to solving the problem.
Optimization does not require complex technical manipulations or flashing the gadget. It is enough to correctly adjust the parameters of the display and background activity of applications to squeeze the maximum out of the device. In this guide, we will look at proven methods that will help significantly extend the life of your smartphone.
⚠️ Warning: Some settings, such as reducing refresh rates or turning off Always On Display, may affect the visual experience of the interface, but are key to saving charge.
Analysis of current energy consumption
Before you make changes to your system, you need to understand which process or application is eating your battery the fastest. MIUI has a detailed statistics tool that shows your energy consumption in real time. Go to Settings → Battery and performance to see a list of the most voracious programs.
It often turns out that the main consumers are social networks or navigation services that work in the background. System processes can also consume resources if the system has accumulated software debris or there is a conflict of versions of applications, analyzing this information allows point-by-point disabling unnecessary functions.
Now, notice the discharge graph, and if you look at the surges, you can see that there's a bad signal in the cell or there's a malfunction in the battery itself, and if the graph is smooth but fast, the problem is the software settings that we're going to be fixing.
Optimization of display settings and brightness
The screen is the most energy-intensive element of any smartphone, and the Xiaomi Redmi 8 is no exception. LCD-matrix used in this model consumes a significant amount of energy, especially at maximum brightness. Reducing the backlight level even 20-30% can add up to one and a half hours of active use of the device.
It is recommended to activate the automatic brightness control function so that the light sensor itself adapts the screen to the environmental conditions. However, you should not rely on automation completely: indoors, you often display excess brightness, which is better adjusted manually through the notification panel.
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Use dark wallpaper on a static desktop image – it will not save energy on your desktop. LCD-Redmi 8 (unlike the Redmi 8) AMOLED), visually reduces eye strain and brightness perception.
Another important parameter is screen timeout: A standard 30 or 60 second lighting will keep the backlight burning longer than you need after you stop interacting with the device, and the best choice for saving is a 15 second light.
⚠️ Note: Do not set screen timeouts for less than 15 seconds, as this can lead to permanent locks while reading text, which will cause discomfort and unnecessary touches, also consuming charge.
Management of Background Processes and Applications
Many users are unaware that even closed applications continue to run in the background, update content and track geolocation. In the MIUI-based Android ecosystem, this process can and should be controlled.
For each heavy application, you can customize your individual energy saving scenario. Go to Settings → Applications → All applications, select the desired program and find “Activity Control” where you can disable autostart and limit background work, leaving only notifications.
☑️ Configuring background processes
Special attention should be paid to geolocation services. Constant search of GPS satellites consumes charge very quickly. If you do not need navigation right now, turn off geolocation completely or switch to "Only on the network", which is less accurate but more economical.
Network modules and wireless connections
Communications modules — Wi-Fi, Bluetooth, mobile Internet — consume energy even when you're not using them. The search for available Wi-Fi networks is constant if the function is turned on. In places with unstable cellular signal, the phone starts to work in a high-speed mode, which leads to rapid discharge and heating of the case.
If you are in a network area 4G It is bad, it makes sense to forcefully switch to 3G or 2G for calls, as the search for a signal 4G It will land the battery instantly. You can do this from the Settings menu. → SIM-maps and mobile networks → Preferred type of network.
Bluetooth is also worth turning off if you don't use headphones or a fitness bracelet. Constantly searching for devices around the area puts an extra strain on the communications processor. Similar to NFC: if you don't use contactless pay every minute, keep the module off.
| Communication module | Impact on the battery | Recommendation |
|---|---|---|
| Mobile Internet (4G/5G) | High. | Disconnect when using Wi-Fi |
| Wi-Fi (Network Search) | Average. | Turn off outside the house |
| GPS/Geolocation | Very high. | Use only when necessary |
| Bluetooth | Low/Mediocre | Disconnect if not in use |
Why does a weak signal land a battery so quickly?
Use of energy saving regimes
Xiaomi Redmi 8 has built-in algorithms for emergency extensions, power saving mode limits background synchronization, reduces processor frequency and limits vibration, which allows you to extend the standby time for several hours.
There is also an ultra-mode that turns a smartphone into a simple “bell ringer”, leaving only basic functions: calls, SMS and contacts available, in which the device can work for several days without recharging, which is critical in field conditions or on long trips.
Activate these functions through the notification curtain or in the battery menu. Ultra mode on Redmi 8 is able to extend the autonomy up to 72 hours in standby mode, disabling all multimedia and network functions except voice communication.
Don't be afraid to use these modes daily if you know there's nowhere to charge your phone in the evening. Current MIUI algorithms are smart enough not to disrupt important notifications, such as calls from contacts from your favorites.
System updates and maintenance
Regular firmware updates are not only about new features, but also fixing bugs that can cause memory and power leaks. Xiaomi developers are constantly optimizing the system code, so installing the latest available version of MIUI often solves quick discharge problems.
Also, it is necessary to periodically clean the cache of the system and remove unused applications. The accumulated digital debris causes the processor to do unnecessary work on indexing files. The built-in Security application will help to quickly clean and optimize.
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Regularly cleaning the cache and removing unused applications reduces the load on the processor and indirectly increases screen time.
If after all the settings the phone continues to discharge rapidly, it may be the physical wear of the battery. Lithium polymer batteries lose capacity over time, and software can no longer restore them - you will need to replace them at the service center.