How to turn off fast charging on Xiaomi Poco F3: the complete guide

Poco F3 smartphone owners often face the need to fine-tune the device’s power system. Fast charging, while a convenient feature for everyday use, can negatively affect battery durability when used constantly. High currents and heating are the main enemies of lithium polymer batteries, so many enthusiasts are looking for a way to limit the power coming from the power supply.

Unfortunately, the standard MIUI or HyperOS shell interface lacks a simple “Stop Fast Charging” button, which is designed to give the user maximum performance by default, but there are proven methods to bypass this limitation to force the device to normal 5V/2A charging.

Next, we will look at the technical aspects of the power controller, the methods of software blocking high currents and the influence of different temperature regimes on the charging process. Modifying system parameters requires care, but gives full control over the state of your gadget.

⚠️ Warning: Any actions you take to change system settings or use engineering menus are at your own risk. Incorrect setting of voltage parameters can lead to unstable operation of the device.

Why you should limit the charging power

Quick Charge technology and the proprietary MI Turbo Charge protocol used in the Poco F3 allow a 4520 mAh battery to be filled in just 30-40 minutes. However, the physics of the process dictates its conditions: the passage of high-power current causes the elements to heat up inside the enclosure. Heat generation accelerates the degradation of the electrolyte and the destruction of the anode structure.

If you leave your smartphone to charge overnight, the rate of recharge is not critical. In this situation, the fast charge on only creates an extra thermal load. The power controller will try to maintain high current even when filling the last 10-15%, which is most harmful to the chemistry of the battery.

  • 🔥 Decreasing body temperature during night charging prolongs life of glue holding back cover.
  • 🔋 Reducing the degradation of battery capacity by 15-20% year of active use.
  • ⚡ No voltage surges in the on-board network of the smartphone during the transition between modes.

In addition, many users note that when using powerful power supplies (for example, 65 W or 100 W), the phone can heat up even when it is turned off. Forced current restriction solves this problem, making the process of replenishing energy more smooth and safe.

📊 How often do you use fast charging?
Only in the daytime.
Constantly.
Only when in a hurry.
Never load slowly.

Using third-party applications to control current

The most affordable way to avoid requiring SuperUser (Root) rights is to use specialized applications that emulate discharge or control connection. However, real hardware current restriction at the controller level often requires root rights or use of root rights. ADB-One of the popular solutions is the AccuBattery app, which allows you to track the speed of charge, but does not block it hardware.

For real-life fast charging shutdown on Poco F3 without root rights, you can try the method of “smart socket” or specific adapters, but the software path through the ADB (Android Debug Bridge gives you a more predictable result, USB-cable and on-line debugging USB developer-menu.

There's a Charge Limit app that, if root access is available, can programmatically turn off the current when a certain threshold is reached, simulating a charging shutdown. It's an indirect method, but it's effective at preventing overcharging. If root rights are missing, you have to rely on system constraints that can be activated through hidden menus.

☑️ Preparation for charging settings

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⚠️ Attention: Play Market apps called "Quick Charge Off" are often fakes and just show ads. Real current management requires deep access to the system.

Configure through the Engineering Menu and ADB

The most effective method is to use the command line. ADB parameterization USB-Configuration, though direct commands to disable QC» No, you can limit the maximum current that the device requests from the charger. USB-port.

First, you need to activate the developer mode by tapping the build number seven times in the About Phone section, then turn on the USB Debugging menu in the Developer Menu, and plug the smartphone into the PC and type the following command in the terminal:

adb shell dumpsys battery set ac 1

This command emulates the connection to the power supply, but does not change the charging protocol. A more advanced method involves changing the thermal parameters. If you artificially lower the temperature in the system, the power controller will reduce the charging current itself to cool the battery.

adb shell svc thermal set-temperature-limit 30

It's important to understand that the Poco F3 is powered by a Snapdragon 870 processor that has built-in protection mechanisms. When the temperature limit is lowered, the system can start trattling the processor, which will affect gaming performance, so this method should only be used overnight, returning the settings back in the morning.

  • 🛠 Teams. ADB They only work until the device is restarted, which is safe for the test.
  • 📉 Reducing the temperature limit causes the controller to reduce the charging current.
  • ⚙️ For a constant effect, you need to run the script every time you turn on the phone.
What are the QC and PD protocols?
Quick Charge (QC) — Proprietary technology Qualcomm, allowing to increase the voltage to 9V, 12V and higher (PD) — universal standard USB-C, It also supports high power. F3 Supports both protocols, automatically selecting the most suitable for the connected power supply.> The fundamental principle of charging states that the device consumes as much as it needs, but not more than the power supply can give. However, the handshake protocol determines whether the devices will agree high current. 33W and a labeled cable 6A, The phone will always try to turn on fast charging.The easiest and safest way to turn off fast charging on Poco F3 without software intervention – change the components. Using a conventional 5V/2A (10W) power supply or an old charger from another smartphone will automatically limit current. The phone will not be able to request high currents if the source does not offer them. Cable also plays an important role. To activate the Mi Turbo Charge, you need a cable that can pass current of 6 Amps. Normal Micro-USB cables or thin USB-C cables are limited to 2A or 3A. By replacing the complete cable with a thinner or cheaper analog, you physically prevent the phone from turning on ultrafast charging. Power supply type Maximum current Poco F3 Charging mode Heating Original Xiaomi 33W to 6A Mi Turbo Charge (Fast) High Standard USB 2.0 2A (10W) Normal charging Low Battery from Laptop (PD) Depends on matching Fast Charge (Medium) Mid-range USB port in PC 0.5A - 0.9A Slow charging Minimum Temperature and Optimization Battery Management System in MIUI is closely related to the readings of thermos. If you want fast charging to turn off the paradox, try to artificially reduce the charge in the system, then it is better to keep the metal in place in the battery in the cooling, so that the system is better to keep the battery in place, if you use it in the battery in the battery. If the phone is in a warm room (above) 25-28 The system can reduce the charging current for safety, but you shouldn't rely on it, because the heating of the battery itself during fast charging can exceed critical values — 15-20 Celsius. The battery settings have a feature called "Optimize Night Charging," which learns your habits and pauses charging at level. 80%, And so, by restarting it before you wake up, although it doesn't shut down the physical fast current, it reduces the time that the battery spends at high voltage in a fully charged state. 🌡 Avoid charging in the sun or under a pillow, so as not to provoke the system to an emergency decrease in current. 📱 Remove a thick protective case while charging for better heat exchange. 🔋 Do not use your phone while charging, so as not to mix the heat from the processor and battery. ⚠️ Warning: Do not try to cool your phone in the refrigerator or freezer. Condensation formed inside the case at a sharp temperature drop is guaranteed to bring the electronics out of order. FAQ: Frequently Asked Questions Is It Safe to Charge Poco All the Time F3 block-on 10 Wh-- yeah, it's perfectly safe, and it's even good for longevity, and slow charging generates less heat, which is a major factor in battery aging. 2-2.5 Will the settings reset? ADB Yes, the commands entered through the adb shell are valid only until the current session. For a permanent effect, you need root access and scripts running through init.d or task managers. Does turning off fast charging affect the warranty? The use of a third-party power supply or cable is not a reason for refusing a warranty, if it did not lead to physical damage (for example, bloating due to poor quality RAM). ADB They also leave no traces unless you change the system partition. Why doesn't the lightning indicator change to normal charging? The visual indicator on the lock screen depends on firmware. Even with the current restriction software, the system can continue to display the logo of fast charging, if handshake at the level of the controller was successful. 💡The most reliable way to turn off fast charging is to use a weak power supply (5V/2(A) and normal cable. Software methods are complex and require resetting after each reboot.