Xiaomi Redmi 4A Fast discharge: 7 reasons and how to fix it

Xiaomi Redmi 4A It is still one of the most popular budget smartphones because of its reliability and simplicity, but over time, many owners face the problem that the phone will run out in a matter of hours, even if it is barely used. What is the matter - in a worn-out battery, software errors or incorrect settings?

In this article, we will discuss all possible causes of the rapid discharge of Redmi. 4A, including hidden functions MIUI, We'll learn how to diagnose a battery, which applications use the most energy, and what to do if a smartphone runs out in 1-2 hours. We've also tested several ways to extend battery life, from calibration to battery replacement.

Spoiler: 80% of the time, the problem is solved without repair! 4A older than 3-4 years, most likely, you will need to replace the battery - its capacity by this time falls by 30-50%.

1. Is the battery consumption of Redmi normal? 4A?

Before we panic, let’s figure out what battery consumption is considered normal for this model. 4A It's got a 3,120 mAh battery, which was a pretty good 2016 performance, and it's officially said it's going to run for up to 2 days in moderate use, but what does that mean in practice?

Here are the approximate data on the operating time under different scenarios (for a new battery):

If your smartphone discharges much faster (for example, in 4-5 hours in standby mode), this is a reason to sound the alarm, especially if it used to hold the charge longer. Also worth paying attention to uneven discharge: for example, the phone suddenly loses 20-30% of charge in a few minutes - this is a sign of a malfunction of the power controller or severe wear and tear of the battery.

⚠️ Attention, if Redmi 4A It turns off at 20 to 30 percent charge and doesn't turn on without recharging, which almost always means that the battery is worn out by 70 percent or more, in which case calibration or resetting won't help - you need a replacement.

2.The main causes of rapid discharge

Let's take a top.-7 The reasons why Xiaomi Redmi 4A Some of them can be fixed on their own, others will require the intervention of a service center.

• 🔋 Battery wear is the most common cause: Lithium-ion batteries lose capacity after 300-500 charging cycles (approximately 2-3 years of active use).
• 📱 Background processes MIUI: Auto-update applications, sync, geolocation, and other “hidden” features that work even when the screen is off.
• 🔄 Unoptimized applications: Some programs (especially games and social networks) continue to consume charge even when folded.
• 📡 Poor network coverage: If the mobile network signal is weak, the phone spends a lot of energy searching for it and holding it.
• 🔌 Non-original chargers: Cheap cables and adapters can damage the power controller, resulting in accelerated discharge.
• 🌡️ Overheating or hypothermia: working at temperatures below 0°C or higher than 40°C reduces battery life.
• 🛠️ Software errors: bugs in the firmware MIUI or application conflicts may cause abnormal consumption.

How do you know what's causing your case? Let's start with the diagnosis.

3. How to check the status of the battery

Before you sin on software, you need to make sure that the problem is not the hardware.

Method 1: Engineering menu code

Enter the combination in the phone application:

##4636##

Go to the Battery Information section, and notice two things:

The charge level (should match with what the indicator shows).

- Health status (if any) in new versions MIUI This paragraph may not be available.

If the menu doesn’t open, try the alternative code:

##6484##

Here in the section MB_XX (where XX — You can see the actual capacity of the battery. Compare it to the passport. 3120 If the difference is greater 30%, battery to be replaced.

Method 2: AccuBattery Application

Download AccuBattery from Google Play, and after 2-3 charging cycles, it will show:

Actual capacity (e.g. 2200 mAh instead of 3120).

- Discharge speed in mA/h.

- Battery temperature (normal: 25-35)°C).

If the app shows that the battery is below 60%, it is time to change it, and also pay attention to the discharge schedule: if it is uneven (sharp jumps), this may indicate problems with the power controller.

💡

If AccuBattery shows a battery temperature above 40°C in normal use, immediately turn off the phone and let it cool. overheating can cause the battery to bloat!

Method 3: Visual inspection

If the battery is swelling, it needs to be replaced immediately, it's dangerous!

The phone was “smoking” (the back cover was raised).

- The screen started to move away from the body.

The phone is worse on a flat surface (swinging).

⚠️ Attention! Never try to puncture or compress a ballooning battery! This can cause fire. Take your phone to a service center or dispose of the battery according to the rules.

4. Optimization MIUI charge-saving

If the battery is fine, but the phone still goes down quickly, the problem may be in the settings. MIUI. Even older versions of firmware have features that can be turned off to save energy.

Disabling autosynchronization

By default, Xiaomi syncs data with Mi Account servers, Google and other services. This is convenient, but it consumes charge.

1. Go to Settings → Accounts and Synchronization.
2. Select unnecessary accounts (e.g. Mi Account, Facebook).
3. Turn off sync for individual applications or completely.

Limitation of background activity

Many apps continue to run in the background even when you're not using them, to limit them to:

1. Open Settings → Applications → Permissions → Autostart.
2. Turn off autoplay for unnecessary programs (especially games and social networks).
3. Go to Settings → Battery and Performance → Battery Consumption Management.
4. Select Charge Saving mode or manually limit background activity for individual applications.

Geolocation setting

Geolocation services (GPS, Wi-Fi scanning, mobile networks, are some of the biggest power eaters. Optimize them:

• 📍 Turn off geolocation completely if you do not use navigation: Settings → Confidentiality → Location.
• 🔄 Enable Device Only (without Wi-Fi or mobile networks for location determination).
• 🚫 Disable geolocation access for unnecessary applications in Settings → Annexes → Permits → Location.

Disable autosynchronization for unnecessary accounts

Limit the background activity of applications

Turn off geolocation or switch to "Only on device" mode

Disable Auto-Update Apps in Google Play

Set a dark topic (AMOLED-There is no screen, but it will reduce the load on the GPU)-->

Additional settings

A few more useful tweaks:

• 🔦 Reduce the backlight waiting time to 15-30 seconds: Settings → Screen. → Sleeping mode.
• 📶 Turn off auto-search Wi-Fi and mobile networks in the background: Settings → Wi-Fi → Additionally. → Searching for sleep-mode networks.
• 🔊 Reduce vibration when dialing and notifications: Settings → Sound and vibration.
• 🌙 Include a dark topic (even on the subject). LCD-This reduces the load on the graphics processor).

💡

The biggest effect is to turn off the background activity of applications and geolocation, two functions that can eat up to 30-40% of the charge per day!

5. Which apps plant the battery the most?

Even if you have optimised your settings MIUI, Some apps can continue to use up charge in the background.-5 "Energy Thieves" for Redmi 4A:

1. Facebook and Facebook Messenger are constantly syncing data, even when you are not using it.
2. Instagram actively uses geolocation and background processes to track activity.
3. Games (for example, Free Fire, Call of Duty Mobile) – even in a rolled-down state can consume up to 10-15% of the charge per hour.
4. Google Play Services is a system process that sometimes “boozes” and consumes up to 20% of the charge per day.
5. Applications with permanent geolocation (for example, Yandex.Maps, Google Maps, Taxi).

How do you find and “stop” these apps?

1. Go to Settings → Battery and Performance → Battery Use.
2. See which programs consume the most charge (sorting by descending).
3. Click on the app. → Select Limit Background Activity or Disable Autostart.

If an app is critically important but it puts a lot of battery down (like WhatsApp), try:

• Turn off geolocation for him.
• Prohibit auto-update in the background.
• Use the web version (e.g. Telegram Web instead of a mobile client).

Hardware problems: when to replace the battery

If all software methods have been tried, but Redmi 4A It still discharges in 2-3 hours, and the problem is almost certainly in the hardware:

• 🔋 The phone turns off at 20-30% charge and does not turn on without recharging (a classic symptom of battery wear at 70%+).
• 📉 The battery discharges unevenly (for example, from 50% to 20% in 5 minutes).
• 🔥 The phone warms up strongly when charging or using.
• 🛠️ The battery swelled (sees the deformed body).
• ⚡ Charging is very slow or interrupted.

The cost of replacing the battery on Xiaomi Redmi 4A In 2026, it is 800-1500 rubles (depending on the region and service); the original battery will cost more (about 2000-2500 rubles), but it will last longer. It is important to choose a high-quality battery - cheap analogues can quickly fail or even damage the phone.

If you are replacing the battery yourself, consider:

• You will need a special tool (suction cup, mediator, screwdriver). T4).
• The battery is glued to the body - it must be carefully separated without damaging the plumes.
• After replacement, calibration (full discharge) may be required. + charge%).

⚠️ If you replace the battery yourself, you risk damaging the display plume or the motherboard.

7. Alternative ways to extend battery life

If replacing the battery is not yet part of your plans, you can try a few temporary solutions that will help to extend the working time:

Calibration of the battery

Sometimes the system misrepresents the charge level, to reset the data:

1. Completely discharge the phone before turning off.
2. Charge up to 100% without interruptions (preferably the original RAM).
3. Turn off the charger and wait for full discharge again.
4. Repeat the cycle 2-3 times.

This can help if the problem is incorrect controller data, but will not return the capacity of the worn battery.

Use of a portable battery (powerbank)

If the phone runs too fast, carry a power bank with a capacity of 5000-10000 mAh. This will allow you to recharge on the go. The main thing is to choose high-quality devices with Quick Charge support (for example, Xiaomi Mi Power Bank 3).

Reduce screen brightness and turn off animation

The screen is one of the main energy consumers, and to reduce the consumption,

• Set autobrightness or reduce brightness to 30-40%.
• Turn off interface animation: Enable Developer Mode (click 7 times on Version) MIUI In Settings → About the phone. Go to Settings. → Additionally. → For developers. Set the scale of the animation window, the scale of the animation transition and the scale of the duration of the animator on No animation.
• Use static wallpaper instead of living.