How to speed up the charging of Xiaomi phone: from simple life hacks to hidden MIUI features

Why Xiaomi Charges Slowly: The Main Reasons

You've connected your smartphone to charge, but the percentage of the battery crawls like a snail? One in three Xiaomi, Redmi or POCO owners face this problem. The reasons can lie in both hardware constraints and software settings, such as cheap thin-vein cables that reduce current by up to 50%, and background processes in MIUI sometimes block fast charging "to save the battery."

Another common case is battery overheating, where if the body temperature is above 40°C, the system automatically limits current to 1A (versus 2-3A under normal conditions), and this applies to new flagships like the Xiaomi 14 Ultra, and budget models like the Redmi Note 12. But not so bad: in 80% of cases, the charging speed can be increased without repair.

1. Check the charger and cable: the main "brake"

The first thing to do is make sure that charging is compatible. Many users use power supplies from old phones or laptops, unaware that they only give 5V/1A. For comparison, the original Xiaomi charges support Quick Charge 3.0/4+, PD 3.0 or the proprietary Mi Turbo Charge, which give up to 120W on flagships.

How to check the power of your charging:

• 🔍 Look for the label on the block: look for signs like Output: 5V⎓3A or 9V⎓2A. The higher the voltage and amperes, the better.
• 📱 Install the AccuBattery app (free on Google Play) and it will show the real charging current in the maA.
• 🔌 Try charging from another device (like a MacBook or iPad – they often support you). PD).

Pay special attention to cable. Cheap nouneim wires often have thin copper veins (28 AWG instead of 24 AWG) that can't withstand high currents. Xiaomi's original cables are labeled 5A, which is a guarantee of fast charging support. If your cable is older than 1 year, check it for breaks at connectors - this is a common cause of speed drops.

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Use USB-IF certified cables that pass resistance tests and maintain high currents without overheating.

2. Enable fast charging mode in MIUI settings

Many people don't know, but MIUI has hidden options that limit charging "to extend battery life." For example, Optimized Charging (or Adaptive Charging) artificially reduces current after 80% if the phone is connected to the network for a long time.

1. Go to Settings. → Battery.
2. Put it on the icon. ⚙️ (gear) in the upper right corner.
3. Find the Optimized Charging option and turn it off.
4. In some firmware, you also need to deactivate Battery Protection.

For models with MIUI 14+ (for example, Xiaomi 13T or POCO F5), the path is different:

Settings → Battery and Performance → Charging → Fast Charging (include)

After optimisations are turned off, charging speeds can increase by 20-30% (as measured by the Redmi Note 11 Pro+ with 67W of charging) but remember: frequent charging at maximum current reduces battery life by 10-15% per year.

3.Reboot your phone before charging: why it works

Background processes are one of the main reasons for slow charging, for example, updating MIUI in the background can consume up to 1.5A current, leaving only 0.5A to charge the battery. The same applies to games, torrent clients or applications with active geolocation (for example, Google Maps or Yandex.Navigator).

Simple life hack: reboot your phone before you connect to the network, which will close all background tasks and free up resources for charging. According to our tests, after rebooting, the current increases by 15-20% (from 1.2A to 1.5A on the POCO X5 Pro).

Close all games and heavy apps

Turn off geolocation and mobile data

Reboot the phone.

Use the original cable and charging-->

If rebooting helps but you don’t want to do it every time, check the apps’ autoload:

Settings → Applications → Application Management → Autorun

Turn off auto-run for unnecessary programs (especially for social networks and instant messengers).

4.Temperature: How to prevent the phone from overheating

The ideal temperature for charging is from 10°C to 35°C. When over 40°C, the battery controller automatically reduces current and sometimes even turns off charging. This applies to all Xiaomi smartphones, but especially for models with Snapdragon 8 Gen 2 (for example, Xiaomi 13 Pro or Black Shark 6 Pro), which bask even in simple.

How to avoid overheating:

• ❄️ Remove the case (especially silicone or thick armored case).
• 🌬️ Do not put your phone on soft surfaces (sofa, bed) – this blocks ventilation.
• 🔋 Do not use your phone while charging (games, videos, calls).
• 🌡️ If the temperature is higher 30°C, wait. 10-15 minutes before connecting to the network.

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At temperatures above 45°C, many Xiaomi models completely block charging until cooled, which is protection against battery damage.

To check the temperature, install the AIDA64 app (Sensors section). If the battery is warming above 40°C for no apparent reason, this may indicate battery wear (check in Settings → Battery → Status).

5. Alternative methods of accelerating charging

If the standard methods did not help, try these non-obvious techniques:

The most radical way is to install a custom core firmware (e.g., FrancoKernel or ElementalX) that allows you to manually adjust charging settings, but requires unlocking the bootloader and risks voiding the warranty. For beginners, it is better to limit yourself to disabling MIUI optimizations (see section 2).

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If you charge from a laptop, use the ports with a lightning icon (USB 3.1/Thunderbolt). These give up to 3A instead of the standard 0.5A.

6.When nothing helps: hardware problems

If you’ve tried all the methods, but your phone still charges slowly, the problem may be:

• 🔋 Wear of the battery (capacity below 80% of nominal value).
• 🔌 Damaged connector USB-C (oxidation, pollution).
• 🛠️ Faulty power controller (requires repair).

How to diagnose:

1. Check battery status in Settings → Battery → Status. If the capacity is below 3000 mAh (for 4000 mAh battery), it is time to change.
2. Check the USB-C connector with a flashlight: dirt or corrosion is a sign of a problem.
3. Try charging the phone from another unit, and if the speed hasn't changed, the phone is a problem.

If the phone is warranty, contact Mi Service.For models over 2 years old, replacing the battery is often cheaper than repairing the power controller.

7. Xiaomi charging myths: what really works and what doesn't

There are a lot of tips on speeding up charging online, but many of them are useless or harmful.

Another common myth is that the first charge should be 12 hours. This was true for nickel cadmium batteries 20 years ago. Xiaomi’s current smartphones (including the Redmi 12 and POCO M6 Pro) have lithium polymer batteries that do not require “training”.

FAQ: Frequent questions about Xiaomi charging