How to change the charging speed on Xiaomi phones: the complete guide

The charging speed of a Xiaomi smartphone is one of the key parameters that affect the usability and longevity of the battery. Many users face a dilemma: on the one hand, you want to charge your phone in 30 minutes, on the other hand, there are concerns that intensive charging reduces battery life. In this article, we will discuss all the available ways to adjust the charging speed on Xiaomi, Redmi and POCO devices, from software settings to choosing the right charger.

It’s important to understand that speed variations depend on the smartphone model, MIUI firmware version and hardware platform. For example, the flagship Xiaomi 13 Pro or Redmi Note 12 Turbo models support ultra-fast charging up to 120W, while budget devices like the POCO M5 are limited to 18W. We’ll look at universal methods as well as specific chips for different lines.

Before you start setting up, remember that changing the factory charging parameters can affect the warranty (if it is about firmware or hardware modifications), all the manipulations you perform at your own risk. If your goal is simply to extend the life of the battery, just follow the basic operating recommendations.

1. Software settings of charging speed in MIUI

The safest way to adjust is to use the built-in MIUI functions. The manufacturer has added options to control charging, but their availability depends on the firmware version and the regional version of the software.

Most modern Xiaomi smartphones (starting with MIUI 12) have the Optimized Charging feature available, which automatically limits the charge to 80% or 90% if the phone is connected to charging for a long time (for example, at night), which reduces the load on the battery and extends its life, to activate it:

1. Go to Settings. → Battery.
2. Tap on Battery Settings (or Additional Settings in some versions).
3. Select Optimized Charging and turn on the switch.
4. Set up a schedule (for example, from 23:00 to 7:00) or leave automatic mode.

Some models (such as the Xiaomi 12T or Redmi K50) have a hidden option called Slow Charging Mode, which forcibly limits current to 5W.

• 🔍 Enter the charger phrase in the settings search.
• 📱 Select Charging Mode (if there is such a point).
• ⚡ Switch to Slow or Standard Mode.

An important nuance: after the MIUI update, some settings may be reset. For example, in MIUI 14 for the Xiaomi 13 Lite, users complained that the optimized charging turns off on its own, in which case resetting the battery settings through Settings → Applications → Application Management → Three points → Resetting settings will help.

2. Disable fast charging via engineering menu

If your firmware doesn’t have explicit speed options, you can use the engineering menu (also known as ##4636##) which works on most Xiaomi devices, but you need to be careful – incorrect changes can cause crashes.

Instructions for shutting down fast charging:

1. Open the Phone app and enter the combination ##4636##.
2. In the menu that appears, select Battery Information.
3. Scroll down to AC Charge (network charging) or USB Charge (USB charging).
4. Slip on the value next to the Fast Charge and select Disable.

After that, the phone will charge at standard speed (5W-10W).To return fast charging, repeat the steps and select Enable.

Check the battery level (30-70% recommended)

Connect the original cable and adapter

Close all background applications

Backup of important data-->

⚠️ Note: On some models (e.g, POCO F4) The engineering menu can be blocked. If nothing happens after you enter the code, try using the app. MTK Engineering Mode (for MediaTek chips) or Qualcomm USB Settings (for Snapdragon).

Another way is to use it. ADB-This method is suitable for advanced users and requires connecting the phone to a PC. Example of a command to turn off fast charging:

adb shell settings put global fast_charge 0

To turn it back on, replace 0 with 1. Remember that after a reboot or system update, the settings may reset.

Selection of charger and cable

The charging speed is directly dependent on the power of the adapter and the quality of the cable, and even if the phone is on fast charging, a weak power supply or a damaged cable will negate it.

Power adapters: Xiaomi uses several fast charging standards:

• ⚡ Quick Charge 3.0/4+ (before 27W) — Compatible with most models on Snapdragon.
• ⚡ MI Turbo Charge (up to) 120W) — flagship technology.
• ⚡ PD (Power Delivery (up to) 100W) — universal standard USB-C.

The table below contains the recommended adapters for popular models:

Cables: Speeds above 18W require a USB-C 2.1 or USB 3.2 cable (usually labeled 5A). Cheap cables can not only limit speed, but also overheat.

• 🔌 Certification: Look for the labeling USB-IF MFi (for iPhone-compatible devices).
• 📏 Length: cables longer than 1.5 m often lose power.
• 🔥 Pitching material: nylon or Kevlar prevents overheating.

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If the phone is warming up while charging, try removing the case and using a less powerful adapter. Overheating above 45°C automatically reduces the charging speed to protect the battery.

4. Charging control applications

If the built-in tools MIUI It's not enough, you can install third-party utilities, and they allow you to flexibly adjust current, voltage, even temperature thresholds.-3 applications:

1. AccuBattery (free, with premium features)

The application analyzes the state of the battery and offers optimal charging settings. among useful features:

• 📊 Tracking of charging/discharge cycles.
• ⚡ Recommendations for charge limitation (e.g. up to 80%).
• 🔋 Estimation of battery wear as a percentage.

2. Battery Charge Limit (requires root)

It allows you to set a rigid charge limit (e.g., 75%) and force the charging speed to slow down after you reach the threshold.

• 🔧 Current and voltage setting.
• 📅 Flexible schedules (such as slow charging at night).
• 🔄 Automatic shutdown during overheating.

3. Quick Charge Tester (to check adapters)

The utility tests real-world charging speed and compatibility with Quick Charge, PD and MI Turbo Charge protocols.

• ⚡ Current voltage and current strength.
• 🔌 Supported fast charging protocols.
• ⏱️ Estimation of full charge time.

⚠️ Note: Applications like Battery Charge Limit require root access, which cancels the warranty and can lead to unstable system operation. MIUI 13+ Some features may be blocked due to protection of Xiaomi from modifications.

5. Effect of temperature on charging speed

The temperature of the environment and the smartphone itself is critical to the charging speed. Xiaomi has implemented thermal protection in its devices, which automatically reduces current when overheated.

• 🌡️ Optimal temperature: 10°C – 35°C. In this range, charging is at maximum speed.
• ❄️ Cold environment (below 0)°C: Charging can be completely disconnected before the battery warms up.
• 🔥 Overheating (above 45)°C): speed drops to 5W lower.

To avoid thermal restrictions:

• 📵 Do not use your phone while charging (especially for games or videos).
• 🌬️ Charge the device in a ventilated place, away from direct sunlight.
• 🔌 Avoid “cheap” adapters without certification – they often overheat.

The Xiaomi 12S Ultra and Redmi K60 Pro have introduced the Adaptive Charging feature, which analyzes the temperature and automatically adjusts the current. If your phone supports this option, it will appear in the Settings menu → Battery → More.

6. Modification of firmware for extended control

For power users willing to sacrifice the warranty, there are ways to deep-tuning charging through custom firmware or modified cores.

• 📱 Firmware on the base AOSP (LineageOS or Pixel Experience often offer flexible power settings.
• ⚙️ Supported cores EAS (Energy Aware Scheduling allows you to finely regulate energy consumption.
• 🔧 Magisk modules like Battery Charge Current Limiter give control of charging current.

Example of Battery Charge Current Limiter installation:

1. Install Magisk and get root access.
2. Download the module from the Magisk Modules repository.
3. In Magisk Manager, select Modules → Install from storage.
4. Once installed, restart your phone and set the limits in the Battery Charge Control app.

⚠️ Warning: Incorrect firmware or kernel settings can cause data loss, overheating or even battery fire.Before experimenting, check out the reviews about your model's specific firmware on the forums 4PDA or XDA Developers.

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Using custom firmware and root access will void Xiaomi’s warranty. If you’re not sure about your skills, it’s better to limit yourself to the software methods in the first sections.

FAQ: Frequent questions about Xiaomi charging speed