Why the screen on Xiaomi Redmi consumes a lot of energy: technical reasons and solutions

Have you noticed that the battery on your Xiaomi Redmi is going down too fast, and the screen is leading the way in the statistics of energy consumption? This is a common problem that can be related to both the software settings and hardware features of the smartphone. In this article, we will discuss 7 key reasons why the display consumes more power than it should, from banal high brightness to hidden defects in the matrix or firmware.

It is important to understand: the screen is the main “eater” of charge in any smartphone, but on Redmi (especially in models with a high-end device). AMOLED-With displays or high refresh rates, the flow rate can be 1.5 to 2 times higher than normal. We won't advise "just reduce the brightness" - instead, we'll offer a systematic approach: how to diagnose the problem, which settings to check first, and when to contact the service center.

The article is relevant for all Redmi lines (including Note, K, Pro), but special attention is paid to models with 120 Hz screens and AMOLED-matrixes (for example, Redmi K50 Pro, Note 12 Pro+). If your smartphone discharges in 4-5 hours with moderate use - read on.

1. High screen refresh rate (60 Hz vs 90 Hz vs 120 Hz)

One of the main features of modern Redmi is support for high refresh rates (90 Hz, 120 Hz or even 144 Hz). The higher the value, the smoother the animation, but also the more energy it takes to operate the display. For example, switching from 60 Hz to 120 Hz can increase battery consumption by 20-30%, all other things being equal.

The problem is that many users don't even know that their smartphone is running at its maximum frequency. By default, MIUI often sets Auto Mode, which doesn't always optimally match the frequency, to check and change the settings:

1. Go to Settings → Display.
2. Select the screen refresh rate.
3. Compare the options: 60 Hz (economic), Auto (adaptive) or 120 Hz (maximum smoothness).

Important: On some models (e.g. Redmi Note 11 Pro+), 120Hz is only available at FHD+ resolution. If you switch to HD+, the maximum frequency will automatically drop to 60Hz, saving you charge.

⚠️ Attention: If after the change in frequency, the screen began to twitch or artifacts appeared, this may indicate a malfunction of the display plume.

2 Brightness and adaptive lighting: hidden MIUI settings

Even if you manually set the brightness to 50 percent, MIUI can automatically increase it depending on the lighting. The culprit is Adaptive Brightness, which often works incorrectly, overstating the backlight without having to. In addition, Redmi has a hidden HDR Contrast setting, which also affects power consumption.

How to optimize:

• 🔦 Turn off Adaptive Brightness in Settings → Display. → Brightness and set the value manually (optimum - 30-40% for premises).
• 🌓 Check out the Dark Mode: on AMOLED-It reduces consumption by 10-15% because black pixels are not illuminated.
• 🎨 B Settings → Display. → Colors and style disable Color Improvement (Vivid) – this will reduce the load on the GPU.

In the models with AMOLED-displays (e.g., Redmi) K60) Even at a minimum brightness, the screen can consume a lot of power due to the Always-On Display feature (AOD). Turn it off in Settings. → Locking the screen if you are not using it constantly.

3. Matrix defects: broken pixels, backlight, plume

If the screen consumes an abnormally high amount of power (for example, the battery goes down in 2-3 hours without active use), the reason may lie in hardware defects:

• 🔴 Broken pixels: even 1-2 dead pixels per AMOLED-the screen force the system to compensate for their work of neighbors, increasing the load.
• 💡 Faulty illumination: on IPS-displays (for example, Redmi 10) burnt out LEDs backlight lead to increased power consumption.
• 🔌 Damaged plume: if after falling or repairing the screen began to consume more energy, the fault may be the departed contact.

How to check:

1. Run the screen test through the engineering menu: dial ##4636## → Equipment Testing → Screen.
2. Use apps like Screen Test (available on Google Play) to find broken pixels.
3. Light a flashlight at an angle on the screen turned off – if spots or stripes are visible, this is a sign of backlight damage.

⚠️ Note: If the battery starts to sit down faster after changing the screen in an informal service, check the quality of the plume and matrix. Cheap Chinese counterparts often have increased power consumption due to poor-quality components.

4. background processes and "wake-ups" of the screen

The screen can consume energy even when you're not using it.

• 📱 Frequent awakenings: Some apps (such as messengers or social networks) wake up the screen to update content.
• 🔄 Auto-update widgets: Weather, news, or fitness trackers constantly turn to the display.
• 🎮 Games and heavy apps: Even after closing, they can leave processes that prevent the screen from going to sleep.

How to diagnose:

1. Go to Settings → Battery → Battery Use and check which apps discharge your phone in the background.
2. Turn on Developer Mode (click 7 times on the MIUI version in Settings → About Phone), then in Settings → Additional → For developers, find the item Do not turn off the screen – turn it off.
3. Use it. ADB-Awakening Check Command: Adb shell dumpsys power Search for lines with mWakeLocks or mScreenOn.

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To temporarily turn off all background processes, put your phone in Flight Mode for 10-15 minutes and watch the battery consumption. If the screen consumption has dropped, the problem is in the applications.

5. Incorrect settings of energy saving in MIUI

MIUI has a complex power management system that sometimes works against the user, such as Ultra-savings mode, which can limit background processes but does not optimize screen performance, or vice versa: Performance mode overclocks the processor and increases the refresh rate of the display, which leads to increased consumption.

How to set up:

• ⚡ B Settings → Battery → Select Balance (not Performance!).
• 🔋 Enable Adaptive Energy Saving (ibid.) – this will allow the system to dynamically adjust the screen frequency.
• 📵 B Settings → Battery → Battery settings turn off Charging Optimization if it's on - this feature sometimes knocks down the flow calibration.

On models with MIUI 14+, Super Wallpapers, which are animated on a locked screen, are beautiful, but can add up to 5 to 7 percent of battery consumption per hour. Turn them off in Settings → Wallpaper.

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Performance in MIUI increases battery consumption by 25-30% due to overclocking of the processor and maximum screen frequency. Use it only when necessary (for example, for games).

6. firmware and MIUI bug updates

Often, the increased power consumption of the screen is associated with software bugs in the firmware. For example, after upgrading to MIUI 14, many Redmi Note 11 users complained that the screen does not go to sleep or consumes energy even when it is turned off, this is due to errors in the display drivers or power management system.

How to fight:

• 🔄 Check for updates in Settings → The phone. → Updating the system.
• 📥 If the problem appeared after the update - rollback to the previous version MIUI It can help (but requires unlocking the bootloader).
• 🐞 Install the patch through TWRP, if an unofficial fix is available (for example, for bugs with Always-On Display).

Use it for diagnosis. ADB-logic:

adb shell dumpsys battery


adb shell dumpsys power

Look for lines with screen or display, which will show abnormal consumption.

External factors: temperature, humidity, covers

Few people know, but the operating conditions directly affect the power consumption of the screen:

• 🌡️ High temperature: when heated above 40°C OLED-Matrices start to consume 15-20% more energy due to changes in pixel resistance.
• 💧 Humidity: getting moisture into the plume or display contacts can cause short circuits that increase the load.
• 📱 Tight covers: If the case presses on the screen (especially in the sensor area), this can lead to false touches and wakes of the display.

What to do:

• Do not leave your phone in direct sunlight (for example, on a car torpedo).
• Use cases with cutouts for the speaker and sensors.
• If your phone is overheating for no reason, check the cooler (on gaming models like Redmi K60 Gaming).

⚠️ Attention: If after moisture the screen began to consume more energy, do not dry the phone with a hair dryer or rice - this can aggravate the corrosion of contacts.

FAQ: Frequent questions about screen battery consumption on Redmi