Smart charging on Xiaomi: how to turn on and configure to extend the life of the battery

The Smart Charging feature on Xiaomi smartphones is a technology that automatically optimizes the battery charging process to extend its lifespan. It limits the charge to 80-90% at night or when the device is connected for long periods, preventing battery wear from constantly maintaining 100% charge, but not all users know how to properly activate and configure it.

In this article, we will discuss in detail how to enable smart charging on different Xiaomi, Redmi and POCO models, which versions of MIUI support the function, and what to do if the option does not appear in the settings, and learn about the hidden nuances of the technology and alternative ways to protect the battery.

What is a smart charging and why you need it

Smart Charging is a software algorithm that analyzes user habits and adjusts the charging process. For example, if you connect your smartphone to overnight charging, the system automatically suspends charging at 80% and brings it to 100% by the morning, which reduces the load on lithium-ion batteries, which degrade faster while maintaining maximum charge.

According to research, a battery that is regularly charged to 100% and in this state for a long time loses up to 20-30% of capacity in 1-2 years. Smart charging helps reduce this wear to 5-10% over the same period.

• 🔋 Extends battery life by 30-50% compared to conventional charging.
• ⏱️ Adapts to the schedule: takes into account the time of connection to the network and the duration of sleep.
• 📱 Works against the background without user involvement after the initial setup.
• 🔌 Compatible with fast charging (does not interfere with Quick Charge or HyperCharge technologies).

⚠️ Warning: Smart charging doesn't shut down the power completely -- the smartphone stays connected to the grid, but the current is dosed. If you need to charge the device quickly to 100%, temporarily turn off the function in the settings.

What Xiaomi models support smart charging

Smart Charging is not available on all Xiaomi devices, it depends on the version of MIUI and the hardware platform, and below is a compatibility table for popular models:

If your model is not listed in the table, check for the function experimentally: go to Settings → Battery → Battery settings. If there is no Smart Charging option, then your device does not support it.

Step-by-step: how to turn on smart charging

Activation of the function takes no more than a minute, but the path to settings may vary depending on the version of MIUI.

For MIUI 14 (Xiaomi 13/12 series, Redmi Note 12)

1. Open Settings (the gear icon on the main screen).
2. Go to the Battery section.
3. Slip on Battery Settings (or Additional Settings).
4. Find Smart Charging and activate the switch.
5. Set up a schedule (if required) or leave automatic mode.

For MIUI 13.5 and below (Xiaomi 11, Redmi Note 11)

1. Go to Settings → Battery and Performance.
2. Select Battery Settings → Charging Modes.
3. Enable the option Adaptive Charging.
4. Confirm action if the system requests access to usage data.

If Smart Charging is not on the menu, try updating your firmware to the latest version or check the model’s compatibility (see the table above).

Update MIUI to the latest version |Use original Xiaomi|Use original charging |Plug your smartphone to the network for 2+ hours for calibration |Check that the function does not conflict with the power saving mode-->

⚠️ Note: On certain devices (e.g, POCO F4 GT) Smart charging may conflict with Ultra Battery Saver mode.Switch off power saving before activating the function.

Hidden settings and alternative methods

If the standard method didn't work, try alternative ways to enable smart charging. Some require activating hidden menus or using the smart charging system. ADB-team.

Method 1: Engineering menu (for experienced users)

This method is suitable for devices based on Qualcomm Snapdragon (for example, Xiaomi 11T Pro, POCO X3 Pro).

1. Open the Phone app and enter the combination: ##4636##.
2. In the menu that opens, select Battery Information.
3. Find Charge Control or Battery Health and activate Adaptive Charging.

⚠️ Warning: Do not change other options in the engineering menu – this can cause malfunctions in the device.

Method 2: ADB (for Advanced)

If the function is hidden by the manufacturer, it can be unlocked using the ADB-For this purpose:

1. Install Platform Tools on your PC.
2. Turn on USB Debugging on your smartphone (Settings → About Phone → MIUI Version, tap 7 times; then Settings → Additional → Developers).
3. Connect the device to the PC and execute the command: adb shell settings put global adaptive_charging_enabled 1
4. Reboot your smartphone.

Method 3: Third-party annexes

If there is no built-in smart charging, you can use apps from Google Play, for example:

• 🔌 AccuBattery – monitors battery status and limits charge to 80%.
• ⚡ Battery Charge Limit – requires root rights, but allows you to flexibly configure thresholds.
• 📊 GSam Battery Monitor – analyzes charging cycles and offers optimal settings.

⚠️ Note: Root-rightless power limiting applications are unstable and can be reset after rebooting. Use built-in features for reliability MIUI.

Frequent problems and their solutions

Even after switching on, smart charging may not work properly. Consider typical errors and ways to fix them:

Problem 1: The function is not activated

If the Smart Charging switch does not respond to pressing:

• 🔄 Restart the device – sometimes a banal rebut helps.
• 📱 Reset the battery settings: Settings → Annexes → Application management → Three points. → Reset the settings.
• 🔌 Check the charger – the feature may not work with non-original adapters.

Problem 2: Charging doesn’t stop at 80%

If the smartphone continues to charge up to 100% despite the smart charging enabled:

• ⏰ Give the system time to learn — MIUI Analyzes the user’s habits for 3-5 days.
• 📵 Turn off the energy saving modes (Settings) → Battery → Regimes).
• 🔧 Reset the system cache: Settings → Memory. → Cleanup → Cash.

Problem 3: The function is missing after the update

If the smart charging has disappeared after the MIUI update:

• 📲 Check the firmware version – some betas remove the feature.
• 🔙 Slid back to the stable version via the Mi Flash Tool (instructions on the official website).
• 📧 Write in support of Xiaomi through the Mi Community app – sometimes the function is returned on user requests.

💡

If smart charging turns off on its own, check if settings reset after rebooting.This may be due to a firmware error – install the latest version of MIUI via Settings → System Update.

How to check if smart charging works

To make sure that the function is active and correctly limits the charge, follow the following steps:

1. Connect your smartphone to charging at night (at least 4-5 hours).
2. Check the charging schedule in Settings → Battery → Battery Use. If smart charging works, you’ll see a plateau at 80–90% with a sharp jump to 100% before waking up.
3. Use the AccuBattery app for detailed monitoring, and the Battery Health section will show you how many cycles are saved by the battery restriction.

Critical: If your smartphone runs down to 0% more than 1 time per month, smart charging can reset.Try to keep the charge level in the range of 20-80% for maximum battery life extension.

Additional Tips for Battery Care

Smart charging is not a panacea. To maximize the life of the battery, follow these recommendations:

• 📱 Keep your smartphone at 40-60% charge if you don’t use it for a long time (for example, during a vacation).

💡

The combination of smart charging with a careful attitude to the battery can increase its life to 4-5 years instead of the standard 2-3.

If you use wireless charging often, remember that it heats the battery more than wired charging, in which case smart charging is especially useful – it compensates for the additional wear and tear from the elevated temperature.

FAQ: Answers to Frequent Questions