Xiaomi smartphones are famous for their price-performance ratio, but even flagship models like the Xiaomi 14 Ultra or the budget Redmi Note 13 face one problem: the battery goes down faster than you would like. And it’s not just the battery that is to blame, but most often the energy is “eat” by background processes, unoptimized MIUI settings and user habits. In this article, we will discuss 20+ ways to actually extend the life of the phone without sacrificing functionality.
It's important to understand that there's no one-size-fits-all solution. One device will help to turn off 5G, the other will limit the background activity of applications, and the third will have to combine several methods. We tested all the tips on models from POCO X5 Pro to Xiaomi 13T with MIUI 14/15 firmware (including global and Chinese versions). Ready? Let's start with the most effective system settings.
1. Optimize MIUI settings to save charge
MIUI offers a lot of hidden power management tools, but by default they are often turned off or suboptimal, and the first thing you need to do is activate the energy saving mode and adjust it to your tasks.
Go to Settings → Battery and Performance → Battery Mode. There are three options available here:
- 🔋 Balanced mode is standard mode, suitable for most users, restricts background activity, but does not block notifications.
- 🌿 Energy saving – reduces processor performance, disables autosynchronization and limits background data – ideal for days when there is no outlet nearby.
- ⚡ Maximum performance – disables all restrictions. Use only when absolutely necessary (for example, for games).
Snapdragon 8 Gen 2/3
Xiaomi 13 Pro
Further check settings Settings → Battery and Performance → Battery settings → Charging optimization.
- 🔄 Adaptive charging – slows charging up to 80% at night to reduce battery wear.
- 📉 Limit charging – set a limit on 85-90%, If you plan to not disconnect your phone from the network for a long time.
2.Manage background processes and applications
One of the biggest black holes for charging is apps that keep running in the background even when you're not using them, especially messaging apps (Telegram, WhatsApp), social media (TikTok, Instagram) and online community games.
To limit your appetite, follow the following steps:
- Open Settings → Applications → Application Management.
- Select an app (like Facebook) and go to Battery Consumption.
- Activate the option "Limit background activity".
- In the Mobile Data section, disable "Background data".
To massively turn off background activity, use Settings → Battery and Performance → Battery Management → Application Selection. Here you can manually specify which programs can work in the background and which can not. We recommend leaving only messengers and navigators (for example, Google Maps or Yandex.Maps) in the background.
☑️ Optimization of background processes
⚠️ Note: Some applications (such as Mi Fit for smartwatches or Google Play Services) may stop working properly if you are forced to restrict them. Before settings, check if you are using functions that depend on background activity (such as sleep tracking or push notifications).
3. Connection settings: Wi-Fi, mobile network and Bluetooth
Wireless communication modules are one of the major energy consumers, and many users are unaware that their phone is constantly scanning networks or keeping Bluetooth on unnecessarily.
Mobile network:
- 📶 Turn it off. 5G, If coverage in your area is unstable, the transition between 4G and 5G It consumes more energy than a permanent job. 4G. Path: Settings → SIM-maps and mobile networks → Type of network.
- 🔍 Turn on “Traffic Saving Mode” in the same settings – this will reduce background data consumption.
Wi-Fi and Bluetooth:
- 📡 Turn off Wi-Fi when you're out of range of familiar networks. Constantly searching for access points drains the battery.
- 🔗 In Wi-Fi settings, disable "Auto-connection to public networks" and "Network scanner".
- 🎧 Use Bluetooth 5.0+ (Available on models with Snapdragon 8xx Dimensity – it is more energy efficient than older versions.
| Module | Consumption (per hour) | How to reduce costs |
|---|---|---|
| 5G | 10-15% | Switch to 4G, disable "Network Search" |
| Wi-Fi (Network Search) | 5-8% | Disable scanning, use static networks |
| Bluetooth | 3-5% | Disconnect when not in use, use LE-regime |
| GPS | 8-12% | Limit accuracy, disable "Location History" |
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If you use headphones often, only use Low Latency when watching videos in your settings. The rest of the time, it wastes energy.
4.Screen: brightness, refresh rate and waiting time
The display is the second largest charge eater after the processor. AMOLED-screens (e.g. Xiaomi) 12S Ultra or POCO F5) You can save up to 30% of energy by properly configuring the display.
Brightness and adaptive settings:
- ☀️ Set the manual brightness at the level 40-50%. Adaptive brightness often overstates the values.
- 🌓 Turn on "Dark Theme" (especially on the subject). AMOLED) — Black pixels are not illuminated, saving charge.
- 🕒 Reduce the screen waiting time to 15-30 seconds (Settings) → Display. → Sleeping mode).
Screen refresh rate:
- 🔄 On models with 120Hz or 144Hz (like the Black Shark 5 Pro), switch to 60Hz for everyday tasks. The difference in smoothness is minimal, and savings up to 25%.
- 🎮 For games, use adaptive frequency (if supported) to allow the screen to automatically lower Hz in the menu and increase in combat.
On LCD-screen devices (like Redmi 10C), the dark theme doesn’t have that effect, but reducing brightness and refresh rates still works. Check settings in Settings → Display → Screen refresh rate.
5. Hardware life hacks: from temperature to charging
In addition to software settings, the battery consumption is influenced by physical factors: ambient temperature, the quality of the charger and even the way the phone is stored.
Temperature:
- ❄️ Avoid overheating - at temperatures above 35°C battery degrades 2 times faster. Do not leave your phone in the sun or near heat sources.
- 🧊 In winter, do not use your smartphone in the cold below. -10°C - Lithium-ion batteries are lost to 50% capacity.
Charging and battery:
- ⚡ Use original or certified chargers. Cheap analogs can damage the power controller.
- 🔋 Don't unload the phone before 0% — optimal charge range for battery life: 20-80%.
- 🔌 Turn off fast charging if you don't rush it. It heats up the battery and reduces its life.
Why can’t you keep your phone on charge all night?
⚠️ Note: If your Xiaomi suddenly starts to run out of power 2-3 Check the battery status in the engineering menu. For this, enter the phone code in the application ##4636##, Go to Battery Information and compare Health Level to Normal (80% And higher, okay, lower. 70% — battery change).
6. Hidden MIUI features for advanced users
For those who are willing to dive deeper into the settings, MIUI has hidden tools that aren't on by default. They require caution, but give a noticeable boost in autonomy.
Microservices shutdown:
- 🛠️ Turn on Developer Mode (7 times click on Version) MIUI In Settings → The phone).
- 🔧 Go to Settings. → Additionally. → For developers and disable: "Background check updates" (saves up to 3% per day). USB" (Do not save actions" (reduces log entry).
Optimization of the system core:
- 🖥️ Install AccuBattery (available on Google Play) to show you which processes are draining the battery and suggest optimizing the kernel to save money.
- 📊 In the same annex, insert "Restriction of charging" on 80% — This will extend the life of the battery in 1.5-2 once.
For owners of devices with unlocked bootloader (for example, after firmware Custom ROM) available additional tweaks through Magisk or Kernel Adiutor. However, these methods require technical knowledge and can lead to loss of warranty.
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The most effective way to save power is by combining the limitation of background processes, reducing the screen frequency to 60 Hz, and using a dark theme on AMOLED, which gives up to 40% increase in autonomy without loss of functionality.
7. Battery saving myths: what doesn't work
There are a lot of tips on saving power online that are either outdated or lacking in evidence, and we'll take a look at some of the most popular myths.
❌ "Close applications from multitasking"
The reality: Modern versions of Android and MIUI are optimized for memory management, and forced closure of applications, on the contrary, can increase battery consumption, as the system will have to reboot them.
❌ "Turn it off. GPS fully"
In fact: Modern chips (like the Snapdragon 8 Gen 2) use low-energy GPS mode (LEO), which consumes minimal charge.
❌ "Use killer missions"
In fact: Apps like Clean Master or DU Battery Saver not only do not help, but also harm – they constantly work in the background, scanning the system, and discharge the battery themselves.
❌ "Charge your phone only when it is completely discharged"
In fact: For today's lithium-ion batteries, deep discharge is more harmful than frequent recharging, and it's optimal to keep the charge level between 20% and 80%.