The 2019 Xiaomi Redmi Note 8 Pro is still one of the most popular handsets in its class, thanks in large part to the balance between performance and battery capacity. Many users wonder how long this gadget can last in the modern rhythm of life, when applications are heavier and background processes are more active. The answer to the question of how much Xiaomi Redmi Note 8 Pro works depends on many factors: from the state of wear of the battery to the screen settings and the type of networks used.
In theory, the capacity in 4500 mAh should provide a confident day of use, but real practice makes its own adjustments. 6 before 8 This is a good indicator for the model with IPS-display and processor Helio G90T. It is important to understand that over time the chemical composition of lithium-ion elements degrades, and by the third year of operation, the container may fall to the limit of the amount of energy used. 20-30%, This will significantly reduce the time of autonomous work.
In this article, we will take a closer look at how different use cases affect discharge, what settings allow you to squeeze the most out of the available charge, and whether you should expect a battery replacement. You will learn why background activity of applications can eat up charge faster than games, and how to properly calibrate the battery to accurately display interest.
Technical characteristics and power consumption of the processor
At the heart of the device is the MediaTek Helio G90T chipset, which was positioned as a gaming processor at the time of its release. This processor is made using 12-nm process technology, which is considered quite hot and energy-consuming by modern standards. Unlike the newer 7-nm or 5-nm analogues, the 12-nanometer process requires more voltage to work at high frequencies, which directly affects how much the Xiaomi Redmi Note 8 Pro runs in high load mode.
The processor architecture includes eight cores: two powerful Cortex-A76 and six energy-efficient Cortex-A55. In routine tasks, such as reading news or texting messengers, the system tries to use only small cores, which saves charge. However, launching "heavy" applications or games instantly activates powerful clusters, causing a jump in energy consumption.
You also have to consider the resolution of the display. 6.53 full HD resolution+ (2340×1080 dots) require significant resources for highlighting and rendering the picture. IPS-The matrix installed in this model does not have energy efficiency. AMOLED-In the black pixels, the backlight is constantly running, making the screen one of the main energy consumers in the device.
The effect of the process on heating
Real time in different scenarios
To understand how long the Xiaomi Redmi Note 8 Pro actually lasts, you need to divide the usage into several scenarios: In standby mode, when the screen is off and only notifications and background synchronization are active, the smartphone can last up to 48 hours without recharging, a good indicator of the optimization of the MIUI system in the background.
When you use it, the numbers change. Watching videos through streaming services (YouTube, Netflix) over Wi-Fi at average brightness allows you to get about a bit of a picture. 10-12 This is one of the most gentle modes, because the processor is not loaded with graphics calculations, but mainly works on decoding the video stream.
The picture is different in games and mobile Internet: Launching games like PUBG Mobile or Genshin Impact drains the battery in 3.5-4 hours of continuous play. Using 4G/LTE networks instead of Wi-Fi also increases the charge consumption by 15-20%, as the communication module has to constantly search for a signal and switch between towers.
For clarity, compare the main load scenarios in the table below:
| Use case scenario | Type of load | Approximate working hours | Expenditure per hour |
|---|---|---|---|
| Video (YouTube/Wi-Fi) | Low/Mediocre | 10-12 hours | ~8-10% |
| Social media (Instagram/FB) | Medium | 6-7 hours | ~14-16% |
| Navigation (GPS + 4G) | Tall. | 5-6 hours | ~17-20% |
| Games (PUBG/CoD) | Maximum | 3.5-4 hours | ~25-28% |
Factors affecting the speed of discharge
There are a number of parameters that directly dictate how long your smartphone will last on a single charge. The first and most obvious factor is the brightness of the screen. Increasing the brightness from 50% to 100% can reduce battery life by almost one and a half times, since backlighting is a big part of the battery life. IPS-The matrices consume the lion's share of energy.
The second critical factor is the state of the software and the number of background applications. Unoptimized applications may not go into sleep mode, continuing to use GPS, microphone or network. Also, the speed of discharge is affected by network coverage: in areas of uncertain reception, the phone constantly increases the power of the transmitter, which leads to rapid drain.
And you can't forget the age of the battery. Chemical wear is a natural process. If your device is over two years old and you've been using charging, the actual battery capacity could have dropped to less than a few years old. 3000-3500 In this case, even with careful use, the phone will require recharging by the middle of the day.
- 🔋 Brightness and refresh rate: High brightness and constant sensor activity increase consumption.
- 📡 Communication modules: Bluetooth enabled, GPS networking 4G/5G greatly accelerate.
- 📱 Background Processes: Applications that are not closed in the background continue to consume CPU resources.
- 🌡️ Temperature: Working in cold or heat reduces the effectiveness of chemical reactions inside the battery.
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Turn off the brightness boost function in the screen settings. Automatic adjustment often twists the backlight to the maximum without needing, which significantly reduces the running time of the Redmi Note 8 Pro.
System settings to save energy
MIUI provides the user with powerful power management tools. To increase the time spent on the Xiaomi Redmi Note 8 Pro, you should first consult the battery menu, and you can activate the power saving mode, which limits background activity and reduces processor performance.
For more fine-tuning, go to Settings → Battery → Energy Saving. This section recommends setting a strategy for heavy apps in the “No Limits” mode for instant messengers only, and for games and videos, “Limit background activity.” This will prevent discharge in your pocket when you are not using your phone.
Also, you should pay attention to the screen settings. Using a dark theme (Dark Mode) in the interface will not have the same effect as on AMOLED, but reducing the time to turn off the screen to 30 seconds will save charge. Turning off unnecessary animations in the "Developers" mode will also slightly reduce the load on the GPU.
☑️ Optimization of settings MIUI
⚠️ Note: Do not use third-party cleaners (Clean Master and analogues). Android already has built-in memory management mechanisms, and the constant restart of processes with such programs only increases the load on the processor and puts the battery down faster.
Impact of Updates and MIUI Optimization
Software plays a key role in autonomy. Often after updating the MIUI version, users notice a change in battery behavior. In the first 2-3 days after a major firmware, the system indexes files and optimizes applications, which causes increased charge consumption and heating. This is a normal process and it requires no intervention.
However, if the situation does not stabilize after a week, the update may contain optimization errors for a particular model, in which case it helps to reset the settings to the factory with a complete data cleanup (pre-backup), which eliminates conflicts of old settings with the new version of the OS.
It is important to keep an eye on the app versions. Outdated versions of social networks may contain bugs that cause "wakelocks" (cPU sleep blocking), regularly update via Google Play or GetApps ensures that you use optimized code that less loads RAM and CPU.
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The battery’s stability after an upgrade depends on the installation procedure. A clean installation (with a data reset) always gives a better result in autonomy than upgrading over the old version.
Rules of operation for extending the life of the battery
To make your Xiaomi Redmi Note 8 Pro enjoy battery life as long as possible, you need to follow the rules of operation of lithium-ion batteries. The main enemy of the battery is extreme states of charge. Constant charging to 100% and discharge to 0% accelerate the degradation of chemical elements.
The optimal range for long-term battery storage and battery health is between 20% and 80%. Try not to leave your phone charging overnight unless you have an optimized overnight charging feature that pauses the process by 80% and achieves the rest before waking up.
Using the original 18W Quick Charge charger guarantees the correct charging algorithm. Cheap analogues can deliver unstable current, which harms the power controller and the battery itself. When the case is heated above 40 degrees, the chemical reactions inside accelerate, leading to an irreversible decrease in capacity.
- 🌡️ Temperature control: Do not play heavy games while charging to avoid critical overheating.
- 🔌 Cable quality: Use cables with 2A and higher current support to avoid voltage drops.
- 📉 Avoid deep discharge: Put your phone on charge when the charge level drops to 15-20%.
- 🚫 Cold protection: Do not leave your smartphone in the cold, can temporarily reduce the current output or damage the structure.
⚠️ Warning: If you notice that the smartphone case is swollen or the back cover has begun to move away, immediately stop using the device and replace the battery.
Diagnostics of battery status
Before you can conclude that the battery is dead, you need to do a diagnostic. There are no built-in tools for measuring wear (in health percentages) in MIUI, but you can use an engineering menu or third-party utilities. The easiest way is to type in the dialer code # # #6485###.
In the menu that opens, find the parameter. MB_06 (Good status of the battery - it should read "Good." Parameter MF_05 (Actual battery capacity will show the current design capacity, and MF_06 — nominal (4500 The difference between them will show real wear and tear.
You can also install the AccuBattery app from Google Play, which runs in the background and over several charging/discharge cycles calculates real capacity. If the diagnostics show wear of more than 30% and the screen time has dropped to 2-3 hours, it makes sense to think about replacing the battery in the service center.