How to increase the time of Xiaomi phone: proven methods for all models

Xiaomi smartphones are famous for their price-performance ratio, but even flagship models like Xiaomi 14 Ultra or Redmi Note 13 Pro+ are not always happy with autonomy. If your phone runs out in the evening and charging becomes an hourly ritual, the problem is not in the battery (at least not always). 80% of fast discharge cases are associated with software settings that can be optimized in 10 minutes.

In this article, we’ll look at 15 working ways to increase Xiaomi’s life, from basic MIUI settings to hidden engineering menu features. You’ll learn which apps eat up battery in the background, how to properly calibrate the battery after a firmware update, and why the Ultra Battery Saver mode in MIUI 14+ can give +40% autonomy when properly configured. All methods are tested on 2020-2026 models and do not require root rights.

Important: If your smartphone is older than 3 years, the problem may be battery degradation (checking it out via ##4636## → Battery Information), in which case no adjustments will help - you need a replacement. But first, let's rule out software reasons.

1. Optimization of background activity: what applications are draining Xiaomi

According to Xiaomi, up to 35 percent of battery life is spent on background processes, and even closed apps can wake up every 15 minutes, check notifications, or synchronize data, especially messaging, social media, and gaming.

To see the main "energy vampires":

1. Go to Settings → Battery and Performance → Battery Use.
2. Click on the three dots in the top right corner and select Show Full Use.
3. Pay attention to applications marked Background activity or High flow.

Typical culprits:

• 📱 Social networks (Facebook, TikTok, Instagram) – constantly update the feed even in a folded state.
• 💬 WhatsApp (Telegram) – check new messages every 5-10 minutes.
• 🎮 Games (Genshin Impact, PUBG Mobile – can run background processes to download updates.
• 📊 Google Play Services (Mi Cloud) – synchronize data without your knowledge.

Decision:

• 🔧 Limit background activity: Settings → Annexes → Application management → [select the application] → Battery → Limit background activity.
• ❄️ Freeze Unnecessary Applications Through Settings → Annexes → Permits → Auto-Start (turn off auto-start for everyone except instant messengers).
• 🗑️ Remove or disable pre-installed Xiaomi services (e.g. Mi Video, Mi Music, GetApps) if you are not using them.

💡

If after limiting background activity, notifications from messengers stopped coming, add them to the exceptions: Settings → Battery → Battery settings → Applications without restrictions

2. Battery mode setup: Ultra Battery Saver vs Adaptive Battery

The MIUI 14+ offers three battery modes, but most users use only the standard one. Meanwhile, the right choice can add 2 to 8 hours of battery life.

Comparison of regimes:

How to turn on Ultra Battery Saver with minimal losses

1. Activate the mode in Settings → Battery → Battery Mode → Ultra Battery Saver.
2. Click Settings and add messengers and maps (Google Maps, Yandex.Maps) to exceptions.
3. Enable the option to Allow notifications for critical applications.

An important caveat: Ultra Battery Saver automatically activates at 5% charge, but it can be turned on by 20-30% to extend the phone’s life for the whole day, while MIUI does not cut the performance for an active application (for example, if you watch YouTube videos, it will work at full power).

3. Battery calibration: why Xiaomi shows the wrong percentage of charge

If your Xiaomi suddenly shuts down 20 to 30 percent or gets stuck for 1 percent of the time, the problem is that the battery controller is out of sync, which happens after firmware updates, deep discharges, or using non-original chargers.

Calibration helps to reset the charging cycle data and return accurate readings. The method works for all models based on MIUI 12-14:

1. Charge your phone to 100% without turning it on (it should take 2-3 hours).

⚠️ Attention: Do not interrupt the calibration process! If you turn off the charging at step 5, the battery controller may reset incorrectly, which will lead to even greater error in readings.

4.Screen Optimization: How to Reduce Battery Consumption by 20%

The display is the second largest consumer of power after the processor. AMOLED-The screens (installed in most Xiaomi since the Redmi Note 10) can save up to 25% of the charge by properly adjusting brightness, refresh rate and theme.

Key settings:

• 🌓 Adaptive Brightness: Turn it off in Settings → Display. → Brightness and set a fixed value at 40-50%. Adaptive brightness sensor often gets it wrong by overstating the backlight.
• 🔄 Update Frequency: If your Xiaomi supports 90Hz or 120Hz, switch to 60Hz in Settings → Display. → The refresh rate of the screen. +15% autonomy.
• 🖤 Dark theme: Include it in Settings → Display. → Dark subject. AMOLED Black pixels are not illuminated, saving charge.
• ⏱️ Screen timeout: Reduce to 15–30 seconds in Settings → Display. → Sleeping mode.

For models with LCD-screens (e.g. Redmi) 9A or POCO M3) Dark theme does not have this effect, but the rest of the settings remain relevant.

5. Communications Management: 5G, Wi-Fi and Bluetooth as Hidden Energy Vampires

Communications modules — 5G, Wi-Fi 6, Bluetooth 5.2+ — consume power even when you’re not using them, for example, constantly searching for 5G networks drains the battery 10-15% faster than running in 4G mode.

How to optimize:

• 📶 Mobile Network: Switch to Mobile Network 4G In Settings → SIM-maps and mobile networks → Preferred network type: Turn off VoLTE and VoWiFi if you don't use Internet calls.
• 📡 Wi-Fi and Bluetooth: Turn on the option to turn off Wi-Fi in sleep mode in Settings → Wi-Fi → Optional. Turn off Permanent Device Search in Bluetooth settings.
• 📍 Geolocation: Switch to mode only on GPS (without network and Wi-Fi in Settings → Confidentiality → Permits → Geodata: Turn off geolocation for unnecessary applications (e.g. Facebook or AliExpress don't need to know your location permanently).

⚠️ Note: If you use Xiaomi as a navigator in your car, don’t turn it off. GPS Instead, turn on the flight mode and manually activate only the flight mode. GPS — This will save charge without disrupting the card operation.

6 Updates and firmware: how MIUI affects autonomy

Every major MIUI update can improve or worsen your time, for example, after MIUI 14, Xiaomi 12T users complained about increased battery consumption due to bugs in optimizing Google Play Services, while MIUI 13 brought an improved Adaptive Battery algorithm that extended the autonomy by 10-20%.

What to do if after the update the phone became faster discharge:

1. Reset the system cache: Settings → About phone → Memory → Clear the cache.
2. Reverse to the previous version of MIUI via Settings → About Phone → System Update → Three Dots → Select an Service Pack (you need a firmware file).
3. Turn off automatic update download in Settings → About Phone → System Update → Settings (cogs) → Auto Update.

If you like experimentation, you can try custom firmware like Pixel Experience or LineageOS, which are often better optimized for autonomy, but remember, this requires unlocking the bootloader and can be insecure.

💡

Before updating your firmware, always check reviews on forums (for example, 4PDA or XDA Developers) – if users complain en masse about battery discharge, it is better to wait with an update.

7 Hardware Methods: When Software Optimization Does Not Help

If all settings are tried and the phone still runs out in half a day, the problem may be:

• 🔋 Battery wear (checked through ##4636## → «Battery information”). >30% Replacement required.
• 🔌 Faulty of the power controller (phone does not hold charge, overheats when charging).
• 📱 Damage to battery plume (frequent problem after falls or repairs).

What you can do on your own:

• 🔄 Battery replacement: Original Xiaomi batteries cost 1,500–3,000 ₽. Buy only from official suppliers (check by serial number on the Xiaomi website).
• ⚡ Cleaning the charging connector: Sometimes poor contact leads to unstable charging. Carefully clean the connector USB-C toothpicking (not metal objects!).
• 🛠️ Checking consumption in the engineering menu: Enter ##4636## → «Battery information» → Look at the discharge graph. Abrupt jumps may indicate a short circuit.

⚠️ Note: If you notice your phone is heating up when charging above 40°C or only charges in a certain position of the cable, immediately contact the service center. These are signs of a malfunction of the power controller, which can lead to a fire.

8 Additional life hacks: unobvious ways to save

A few little-known tricks that will help you squeeze the most out of the Xiaomi battery:

• 🎵 Turn off vibration when dialing: Settings → Sounds and vibrations → Vibration when dialing, it saves up to 5% of the charge per day.
• 📸 Limit the camera resolution: Shooting in 4K Or 108 MP is a lot of CPU load. HD camera-setting.
• 🔊 Use mono sound: Stereo speakers (e.g. Xiaomi 13 Pro) consume 10% more power. Turn off the second speaker in Settings → Sounds and vibrations → Sound quality.
• 🌡️ Control the temperature: If overheating is above 45°C Xiaomi automatically reduces performance, but it doesn't save you from accelerated discharge.Use cooled cases or avoid direct sunlight.

For POCO or Black Shark owners: These models have a hidden game mode that can be used to save money. It is activated through Settings → Special Opportunities → Game Mode (disables background processes and limits performance for non-gaming tasks).

💡

If you listen to music frequently through Bluetooth headphones, switch to SBC codec instead of AAC or aptX. It is less energy-intensive, and only audiophiles will hear the difference in quality.

FAQ: Answers to Frequent Questions