How to Reduce Battery Consumption on Xiaomi: A Complete Guide with Proven Methods

Xiaomi smartphones are famous for their price-performance ratio, but even flagship models like the Xiaomi 14 Ultra or the budget Redmi Note 12 sometimes run out too quickly. The reason lies not only in battery capacity, but also in the features of MIUI firmware, application background activity and hardware settings. This article will help you understand how to reduce battery consumption by 20-30% without losing functionality – from basic settings to hidden features of the engineering menu.

We tested all the methods on MIUI 14/15 devices (including the POCO F5, Xiaomi 13T and Redmi 12) and only selected those that have a real effect. Importantly, some tips require permission to change system settings, but none require root rights or unlock the bootloader. Let's start with simple actions and gradually move on to advanced tricks.

1. Optimization of application background activity

Up to 40 percent of your battery life can go to applications that run in the background -- even if you don't use them. MIUI aggressively caches processes, but it's controllable. First, check the list of the most voracious apps:

1. Go to Settings → Battery and Performance → Battery Use.
2. Click on the three dots in the top right corner and select Statistics for the last 7 days.
3. Pay attention to apps marked Background Activity or High Consumption.

Typical culprits are Facebook, Instagram, TikTok, messaging apps (Telegram, WhatsApp) and games.

• 🔋 Turn off autostart: Settings → Annexes → Application management → [Select the application] → Auto-start.
• 🚫 Stop background activity: In the same app menu, find Background Activity and select Limit.
• 📵 Remove from "Secure Applications": Settings → Battery → Secure applications (remove unnecessary ones).

⚠️ Attention: Restricting background activity for messengers (Viber, WhatsApp) can cause notifications to be delayed.

Configuring energy saving modes

MIUI offers three preset power modes, but few people know that you can fine-tune them to your needs. It's the default Balanced Mode that's not always optimal. Here's how to select and customize modes:

To adjust the mode to yourself:

1. Go to Settings → Battery and Performance → Battery Modes.
2. Choose Energy Saving or Super-Economic.
3. Click Mode Setting and turn off unnecessary restrictions (e.g., you can leave mobile data active).

Prof. Tweak: MIUI 15 has a hidden option called Adaptive Energy Saving, which automatically switches modes based on the level of charge, to enable it:

Settings → Special features → Additional settings → Adaptive energy saving

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If notifications are missing after activation of the power saving mode, add the necessary applications to the exceptions: Settings → Notifications → Priority notifications

3. Display optimization is the main charge eater

The screen consumes up to 50% of the energy when used actively. - Xiaomi AMOLED-displays (for example, Xiaomi 13 Pro or POCO X6 Pro) you can save charge by using dark themes and adaptive brightness. IPS-screens (like in Redmi) 10A) other rules.

• 🌑 Include a dark theme: Settings → Display. → Dark subject. AMOLED-This reduces the consumption of screens by 10-15%.
• ☀️ Adjust adaptive brightness: Turn off automatic adjustment in Settings → Display. → Brightness and set a fixed value at 40–60%.
• ⏱️ Reduce screen timeout: Settings → Display. → Sleep after → Choose 15 seconds.
• 🔄 Turn off the high refresh rate: POCO F5 Xiaomi 12T s 120/144 Hz, switch to the Hz. 60 Hz in Settings → Display. → Frequency of update.

Hidden chip for AMOLED: MIUI has an undocumented DC Dimming mode that reduces screen flicker and saves a little bit of charge. Activated via the engineering menu:

##36446337## → DC Dimming → Enable

⚠️ Note: On some models (Redmi Note 11 Pro)+) after-in DC Dimming can produce artifacts at low brightness. If you notice flickering, turn off the function.

Turn on dark theme | Set fixed brightness 50% | Reduce screen timeout to 15 seconds | Turn off 120 Hz (if any) | Check DC Dimming (AMOLED only)

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4. Connection management: Wi-Fi, mobile network, Bluetooth

Wireless communication modules consume power even when you're not using them, for example, constantly searching for Wi-Fi or 5G networks in low signal conditions can eat up to 10% of the charge per hour.

• 📶 Turn it off. 5G, if not necessary: Settings → SIM-maps and mobile networks → Preferred type of network → choose 4G. On the Redmi. 10C and similar public sector 5G It’s not, but on Xiaomi 13, it’s not. +5% autonomy.
• 🔄 Set up automatic switching Wi-Fi/Mobile data: In Settings → Wi-Fi → Additional settings disable Autoconnect to open networks and Network Search in the background.
• 🔌 Use "In Airplane" mode on subway/elevator: When the signal is weak, the phone spends a lot of energy searching for it. Quickly turning on/off the aircraft mode resets the connection and saves charge.
• 🎧 Turn off Bluetooth if not using: Even while waiting for a connection (for example, for Mi Band), the module consumes ~3% charge per hour.

Advanced Trick: On Qualcomm Snapdragon models (e.g, POCO X5 Pro) you can disable Modem Sleep, a feature that keeps the mobile connection active for quick network access. +7-10% autonomy, but notifications can come with a delay of up to 2 minutes. ADB:

adb shell settings put global mobile_data_always_on 0

5. Disable unnecessary functions and sensors

MIUI by default includes many smart features that constantly poll sensors and consume energy, such as lifting to wake up, gestures in the air or Always on display (AOD) can reduce the time of operation by 15-20%.

• 🙅 Turn it off. AOD (Always on Display: Settings → Display. → Always on Display. AMOLED-The screen consumption is minimal, but on IPS (like Redmi. 9A) It's a waste of charge.
• 🤳 Deactivate gestures and sensors: Settings → Display. → Awakening gestures → Turn off everything; Settings → Special facilities → Movements and gestures → Turn off the lift to wake up; Settings → Annexes → Permits → Body sensors → Ban access to unnecessary applications.
• 📍 Limit geolocation: Go to Settings → Confidentiality → Permits → Geolocation and for each application select Only during use or Prohibit.
• 🔊 Disable Smart Assistant: Xiaomi Smart Assistant is constantly running in the background. → Annexes → Application management → Smart Assistant → Shut down.

Expert advice: On models with an infrared port (such as Xiaomi 12S Ultra), turn it off if you do not use the remote control. This saves ~1% of charge per day: Settings → Connections and Sharing → Infrared port.

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Even the sensors that are turned off (like a gyroscope) can consume power if the applications are accessing them. Check the permissions in Settings → Privacy → Permissions Manager.

6. MIUI Optimization: Hidden Settings and Engineering Menu

MIUI hides a lot of parameters that affect autonomy, such as the default interface animation, which not only slows down the system, but also consumes the charge to redraw the screens, you can limit the number of background processes and disable unnecessary system services.

• ⚡ Turn off animation: Activate Developer Mode: Settings → The phone. → Version. MIUI (press 7 times. Go back to Settings. → Additionally. → For developers. Find the items Window animation scale, transition animation scale and animator duration - set Off..

Limit background processes

Limitation of background processes

Maximum 2 of the process

Turn off debugging and diagnostics

• Debugging by USB → Off.;
• Maintaining a log of errors → Off.
• Report on use → Off..

Reset battery statistics

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The engineering menu (#4636##) allows you to tweak the network and battery settings in depth. For example, in the Battery Information section, you can see the actual battery wear (health indicator) if it is below 80%, it is time to think about replacing it.

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After resetting the battery statistics, complete the full discharge/charging cycle (0% to 100%) so that the system recalibrates the data, which will help to accurately display the percentage of charge.

7. Hardware methods: charging and battery maintenance

Even perfect settings won't save if the battery is worn out or charged incorrectly. Xiaomi uses lithium-polymer batteries that degrade when:

• Constant charging up to 100%;
• Use of non-original chargers;
• Overheating above 40°C;
• Deep discharge (below 5%).

Rules for battery care:

• 🔌 Charge up to 80-90%: In Settings → Battery → Charging settings enable Optimized Charging (limits charge to 80% at night).
• ⚡ Use original chargers: Non-original adapters (especially with fast charge) 67W/120W) damage to the power controller.
• 🌡️ Avoid overheating: Do not play games while charging and do not leave your phone in direct sunlight.
• 🔋 Calibrate the battery once every 3 months: Completely discharge the phone, then charge to 100% without interruptions.