Xiaomi Poco X3 NFC is one of the most popular mid-range smartphones, famous for not only powerful performance, but also support for fast charging. However, many users face the problem: the device charges too slowly, despite the declared 33 watts. What is it? Why does the feature not work out of the box? And how to activate it correctly?
In this article, we will discuss all the ways to enable fast charging on the Poco X3 NFC, explaining what settings to check, what accessories to use, and why sometimes even the original power supply does not give the expected speed.
Important: The manual is suitable for all firmware versions (including MIUI 12/13/14 and HyperOS), but some points may differ depending on the regional firmware. If your smartphone does not support 33 watts, don’t worry: we will tell you how to maximize charging speed even with limitations.
1.Verification of support for fast charging on Poco X3 NFC
Before you set up anything, make sure your Poco X3 NFC supports fast charging at all. Even though all devices in this model are equipped with the appropriate technology, there are nuances:
- 🔋 Modification of the device: official version of Poco X3 NFC (codename surya supports 33W Fast Charging.However, the Indian version (Poco) X3 without NFC) limited to 18 watts.
- 🔌 Power supply: Complete with Poco X3 NFC The charger is 33 watts (model) MDY-11-ED). If you have another block, the speed will be lower.
- 📱 Battery state: If the battery is worn out (capacity below 80%), the system automatically limits the charging power.
To check for fast charging support:
- Connect the original power supply 33 watts.
- Open the Settings → About Phone → MIUI version and tap 5 times on the Core to activate the developer mode.
- Return to Settings → Additional → For developers and find the item Charging Status.
- If the status is Fast charging or 33W, the function is supported.
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If Normal charging is displayed in the charging status, try resetting the battery settings: Settings → Battery → Resetting battery statistics. This sometimes helps restore support for fast charging.
Note: Some custom firmware (e.g. Pixel Experience or LineageOS) may disable fast charging by default, requiring manual configuration via kernel adiutor or similar utilities.
2. Why fast charging doesn't work: top-5 cause
If your Poco X3 NFC isn’t charging at full speed, the problem lies in one of the following factors:
| Reason. | How to check | Decision |
|---|---|---|
| Unoriginal cable/power supply unit | Look at the marking on the charger (must be 33W or MDY-11-ED) | Use only original kit or certified accessories (e.g. Anker PowerPort III) |
| Power saving mode is on | Check the top notification curtain on the leaf or snowflake battery icon | Turn off in Settings → Battery → Power saving mode |
| Overheating of the device | Touch the back panel – if it’s hot, the system reduces power | Let the phone cool down or remove the case while charging |
| Outdated firmware | Check the version of MIUI in Settings → About the phone | Update the software through Settings → System Update |
| Battery wear and tear | Install the AccuBattery app and check the battery status | If the capacity is below 80%, consider replacing the battery. |
A critical mistake many users make is using cheap USB-C cables that don’t support Quick Charge 3.0+, even if a powerful, low-quality cable will limit the speed to 10-15 watts.
3. Step-by-step instruction: how to turn on fast charging
If all conditions are met but fast charging is still not activated, follow this instruction:
Use the original power supply unit 33W|Connect the phone to the outlet (not to the USB-port)|Disable all background applications|Make sure your phone temperature is below 35°C|Turn off the energy saving mode-->
- Activate Fast Charging in Settings: Go to Settings → Battery → Battery Settings and enable the Quick Charging option (in some firmware, this item may be called Accelerated Charging or 33W Fast Charge).
- Check the developer settings: If the standard method didn’t work, activate Debugging by USB In Settings → Additionally. → For developers, then connect the phone to your PC and execute the command: adb shell settings put global. fast_charge_forced_enable 1 This command forcibly includes fast charging, but may not work on all firmware.
- Reset the battery settings: Sometimes the battery calibration gets lost. To reset it, go to Settings → Battery → Reset the battery statistics and confirm the action. After that, complete the full discharge / charge cycle (0% to 100%).
Attention: ⚠️ If, after the forced activation of fast charging through ADB phone starts to overheat or discharge quickly, return the settings back with the command:
adb shell settings put global fast_charge_forced_enable 04.Optimum settings for maximum charging speed
To charge the Poco X3 NFC at full power of 33 watts, it is not enough just to turn on the function - you need to configure the device correctly.
- 🔌 Use the socket, not USB-Port: Charging from computer or laptop is limited 10–15 Waht because of the standards USB 2.0/3.0.
- 📴 Turn off mobile data and Wi-Fi: Active data transfer heats up the processor, leading to trottling (automatically lower charging power).
- 🎮 Close Resource-Hungry Apps: Games, Video Editors, and Even YouTube 4K warm up the smartphone, slowing down the charging.
- ☀️ Avoid direct sunlight: Overheating above 40°C disables fast charging at the level of the power controller.
To achieve maximum speed (0% to 50% in 30 minutes), follow this algorithm:
- Turn off the phone (in the off state, charging is faster by 10-15%).
- Connect the original cable and power supply 33 watts.
- Place the device on a flat surface (not on soft bedspreads or carpets that block the heat sink).
- Do not use your phone while charging.
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Under all conditions, the Poco X3 NFC charges from 0% to 100% in 65-75 minutes. If the time is longer than 90 minutes, check the power supply or battery status.
5. Frequent mistakes and how to avoid them
Many users inadvertently slow down their charging speed by making common mistakes, and here are the most common ones and ways to fix them:
⚠️ Note: Use of cheap wireless charging (especially without Qi 1.2 support)+) Not only can it slow down charging, it can also damage the power controller. X3 NFC Supports wireless charging up to 10W, but only with certified stations (e.g. Xiaomi Mi Wireless Charging Pad).
- ❌ Charging on the go: If you are actively using your phone while charging (especially playing games), the speed drops to 5–10 watts due to the load on the processor.
- ❌ Use of damaged cable: Microcracks in the squirt or bent connectors USB-C increase resistance, which leads to a drop in voltage.
- ❌ Charging at temperatures below 10°C: Lithium-ion batteries don't charge well in the cold. If the phone is cold, wait until it heats up to room temperature.
- ❌ Continuous 100% charge: This accelerates battery degradation. Optimal range is 20–80%.
To check the actual charging speed, install the Ampere app (available on Google Play), which shows current (in mA) and voltage. For 33 watts, the readings should be:
- Current: 4000-5000 mA (in the initial stages of charging).
- Voltage: 9-11 V.
If the values are much lower, the problem is in the power supply, cable or phone charging controller.
6. Alternative methods of accelerating charging
If your Poco X3 NFC doesn’t support 33W (for example, you have an Indian version with 18W), or you want to optimize the process even more, use these methods:
How to check the real version of Poco X3 NFC?
- ⚡ Use Aircraft Mode: Disabling all wireless modules (Wi-Fi, Bluetooth, cellular) reduces the load on the processor and speeds up charging by 10-15%.
- ⚡ Include "Ultraeconomic mode": In Settings → Battery activate this mode – it turns off background processes, but leaves the ability to call and send SMS.
- ⚡ Update your firmware through Fastboot: Sometimes OTA-Updates do not optimize the power controller.Full flashing through the Mi Flash Tool can restore support for 33 watts.
- ⚡ Use a cooling stand: Overheating is the main cause of trottling. A fan stand (such as Black Shark Cooler) will help maintain optimal temperature.
Attention: ⚠️ Some users are trying to modify the firmware to accelerate charging to 40-50 watts. This is extremely dangerous! X3 NFC not designed for such loads, which may lead to:
- Battery bloating.
- Burning out the charging chip.
- Lose the warranty.
7. How to extend the battery life with fast charging
Fast charging is convenient, but it speeds up battery wear.To make the Poco X3 NFC last longer, follow these tips:
| Action. | Why is it important? |
|---|---|
| Don’t keep your phone charging after 100% | Constantly “recharging” to the maximum increases stress for the battery |
| Charge at a temperature of 10–30°C | Extreme temperatures accelerate degradation of lithium-ion cells |
| Use the original cable | Poor quality cables cause voltage surges harmful to the controller |
| Once a month, perform a full cycle of discharge / charging | This helps reset the battery calibration and prolongs its life. |
To monitor the status of the battery, I recommend installing:
- AccuBattery - shows real capacity and wear.
- GSam Battery Monitor – analyzes the charge consumption of applications.
- Battery Guru – monitors temperature and voltage in real time.
If the battery capacity has fallen below 70%, consider replacing the original battery for the Poco X3 NFC has an article MBJ4062 and costs about 1500-2000 rubles.