Why Xiaomi smartphones quickly sit down charging: reasons and ways to solve

Have you noticed that your Xiaomi is running out too fast, even though it used to hold a charge all day? This problem is familiar to many owners of smartphones of the brand - from budget Redmi to flagship Mi and the newest smartphones. POCO. Rapid battery discharge can be associated with software failures and physical wear and tear of the battery. In this article, we will examine all possible causes, from obvious to hidden, and give specific recommendations on how to return the smartphone to its previous autonomy.

It is important to understand: if the battery began to go down faster after the update MIUI, After you install a new application or after you damage it mechanically, the algorithms will be different, and we will not advise you to just reset (this is the last resort!), but rather to offer a systematic approach, from diagnosis to point-of-point fixing of the problem. Let’s start with the simplest – check the charge flow in the settings.

1.How to check what exactly drains the battery on Xiaomi

Before action is taken, the culprit of high energy consumption must be identified. MIUI There are built-in tools for this:

1. Open Settings → Battery and Performance → Battery Use
2. Take a look at the cost chart for the last few years. 24 Pay attention to applications with consumption of more 10-15% — That's an abnormally high rate.
3. Tapping any app on the list to see details: Background activity, Mobile data, Geofencing (geolocation).

Typical charge eaters:

• 📱 Social networks (Facebook, Instagram, TikTok) – constantly update content in the background.
• 🎮 Games (Genshin Impact, PUBG Mobile – load the processor and screen.
• 📍 Maps and navigators (Google Maps, Yandex.Navigator) GPS mobile.
• 🔄 System Processes (Android System, MIUI Daemon – may indicate firmware failures.

If you see an unknown app at the top of the flow (e.g. com.sec.android.app.launcher), it could be a virus or malware, and then you can immediately go to the security section.

2. Background activity of applications: how to limit it

Many programs continue to run after closing, consuming charge. MIUI There are two levels of background control:

Method 1: Limitation through battery settings

1. Go to Settings → Applications → Application Management.
2. Select an application (such as Telegram) → Battery consumption → Limit background activity.
3. Activate the Limit option (some models have Deep Sleep).

Method 2: Global Constraint through the "Energy Saving Mode"

• 🔋 Turn on the settings. → Battery → Energy saving mode (recommended Balanced or Super-Energy saving).
• ⚡ Activate Battery Optimization – the system will suspend background processes.
• 📵 In the AutoRun section, disable unnecessary apps (e.g. AliExpress or Wildberries should not start when your phone is turned on).

Disable Auto-Run for Low-Use Applications|

Introduce energy saving on a continuous basis|

Limit background activity for social networks and messengers|

Check the "Exceptions" list in the battery settings (some applications may be protected from optimization)

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Important! Do not limit the background for system applications (e.g. Settings, Phone, Google Play Services) - this can cause malfunctions in the smartphone.

Battery wear: how to check and what to do

Lithium-ion batteries in Xiaomi smartphones are designed for 500-800 And then the capacity starts to fall, and the phone discharges faster. There are two ways to check the wear and tear:

Method 1: Through the Engineering Menu (code)

1. Open the Phone app.
2. Enter the combination: ##4636##
3. Go to the Battery Information section and see the Battery Health parameter.

Meanings:

• 🟢 90-100% — battery in good condition.
• 🟡 70-89% — A noticeable wear, it is worth thinking about replacing.
• 🔴 Less than 70% – critical wear and tear, replacement is required.

Method 2: AccuBattery Application

Download AccuBattery from Google Play. 2-3 It's going to show you the exact battery capacity and the wear and tear, for example, if you originally had your Redmi Note. 10 Pro was standing on the battery. 5020 mAh, and the app shows 3800 mAh is a signal. 25% wear-and-wear.

If the wear is confirmed, there are two options:

1. Replacement of the battery in the service center (cost - from 1500 to 4000 rubles depending on the model).
2. Optimization of use: reducing the brightness of the screen, turning off background processes, using lean modes.

4. MIUI updates and firmware failures

Frequently, fast discharge begins after an update. MIUI. It's connected to:

• 🐛 Bagami in the new version (for example, in the MIUI 14 was a problem with background optimization for the Redmi Note 10).
• 🔄 Incorrect installation of the update (if you interrupt the process or install via Recovery).
• 📱 Incompatibility of firmware with iron (relevant for custom firmware).

How to fix it:

1. Reverse to the previous version MIUI (if the problem started after the update. → The phone. → Version. MIUI → Badge "..." → Select the service pack Download the old firmware from the official Xiaomi website and select it manually.
2. Reset the cache (not data!): Turn off the phone → Hold the Power. + Volume Up → Choose the Wipe Cache
3. Perform a reset (last option): Settings → Additionally. → Resetting settings → Erase all data ⚠️ Note: Before reset, make a backup through Settings → Google → Backup. Once reset, the phone will be like new, you'll have to reset your accounts and apps.

If the problem occurs after a custom firmware (such as Pixel Experience or LineageOS), check:

• Compatibility of the firmware with your model (on the forum) 4PDA or XDA Developers).
• The presence of bugs in the theme of the firmware (often developers write about known problems with the battery).
• Installation correctness (for example, whether the vendor or firmware firmware step is missed).

5. Viruses and malware

If the battery starts to go down quickly for no apparent reason (you haven't installed new apps, you haven't updated the firmware), you can have a virus attack. Malware often masquerades as system processes and consumes a charge on:

• 🕵️ Cryptocurrency mining (for example, Monero).
• 📤 Hidden data sending (your photos, messages, geolocation).
• 📊 Displaying hidden ads (even when the screen is off).

How to Detect and Remove:

1. Check the list of running processes: Settings → Annexes → Search for suspicious names (e.g. com.system.update, android.service.secure).
2. Use antivirus: Install Malwarebytes or Dr.Web Light and perform a full scan.
3. Check Administrator Rights: Settings → Passwords and security → Device administrators Remove unknown applications from the list.
4. Remove suspicious APK: Go to Settings. → Apps and sort by installation date. Remove anything that you installed from third-party sources (not from Google Play).

Typical signs of the virus:

• 🔋 The phone is warming up without loading.
• 📶 Increased mobile traffic consumption (check in Settings) → SIM-maps and mobile networks → Traffic consumption).
• 🔄 Unknown notifications or advertisements appear.

⚠️ Warning: If an antivirus finds a threat called Android.Triada or Android.HiddenAds, it is a serious virus that can be sewn into system files, in which case only a complete reset or flashing will help.

6. Hardware problems: what breaks down in Xiaomi

If the software methods didn't help, the reason could be hardware.

• 🔌 Faulty Charging Controller – Phone doesn’t hold charge even if the battery is new.
• 📶 Communication module problems – if a smartphone is constantly looking for a network (for example, in the subway), it drains the battery.
• 🔍 Damaged battery plume is a common problem after falls or disassembly.
• 🌡️ CPU overheating – if the heat paste dries, the phone overheats and discharges faster.

How to diagnose:

1. Check charging from another unit – if the phone is charging slowly or not charging at all, the problem may be in the port or controller.
2. Look at the network indicator – if it flashes frequently or shows “No Network”, the communication module is faulty.
3. Conduct an overheating test: Install the app CPU Monitor and run a stress test (e.g., playing at maximum settings) if the temperature is higher than 60-70°C, we need a heat paste replacement.

Cost of repair in the service center:

⚠️ Warning: If you notice that the phone is swelling (the screen or back cover is raised), you can't: Continue to use the device. Charge it. Try to disassemble yourself. Immediately take the smartphone to the service - the bloated battery can ignite!

7. Optimize settings for maximum autonomy

Even if the battery and the iron are fine, the wrong settings can reduce the time you run.

Screen:

• 🔦 Reduce the brightness to 50-60% (or turn on Adaptive Brightness).
• ⏱️ Set screen timeout on 15-30 seconds (Settings) → Screen. → Screen timeout).
• 🎨 Use a dark theme (on the AMOLED-This saves up to 20% of the charge on screens).

Network and connections:

• 📶 Turn it off. 4G/5G, If you don’t need a fast internet connection (go to the internet). 3G In Settings → SIM-maps and mobile networks).
• 📡 Turn off Wi-Fi and Bluetooth when not in use.
• 📍 Turn off Geolocation for unnecessary applications (Settings) → Confidentiality → Permits → Geolocation).

Productivity:

• 🔧 Enable Performance Mode on Balanced (Settings) → Battery → Performance mode).
• 🔄 Limit it. FPS in games (in the settings of the graphics select) 30 or 45 FPS instead 60/90).
• 🗑️ Clean the cache regularly (Settings) → Warehouse → Clear the cache).

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If you use your navigator frequently, turn on Device Only in geolocation settings (Settings) → Geolocation → Regime. → This will reduce battery consumption, since the phone will not search for satellites through the mobile network.

8.When is the time to bring the phone to the service

If you have tried all the ways, but the battery still sits down. 3-4 It's time to call in the experts, signs that you need professional help:

• 🔋 The phone is running at 1% per minute in standby mode.
• 🔌 Charging is jerky or not at all (for example, charges up to 80% and stops).
• 🔥 The body warms even without loading.
• 📉 After the battery replacement, the problem did not go away (the controller may have failed).

What to do before visiting the service:

1. Make a backup of the data (Settings) → Google → Backup).
2. Write down the phone's IMEI (type *#06#).
3. Find out if your model has a warranty (check the serial number on the Xiaomi website).

The cost of diagnostics in official Xiaomi services - from 500 If the battery is a problem, it'll be replaced. 1-2 If the fee is faulty, the repair may take up to 5-7 days.

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If the phone is warranty, don't disassemble it yourself! Opening the case will void the warranty.

FAQ: Answers to Frequent Questions