1. Product Overview
The LDNIO A6140C is a high-power 140W GaN (Gallium Nitride) fast charger designed for versatile use at home, in the office, or while traveling. It features 6 ports (3 USB-C and 3 USB-A) that support various fast charging protocols, allowing simultaneous charging of multiple devices including laptops, tablets, and smartphones. Its compact design, interchangeable plugs, and advanced safety features make it a reliable and efficient charging solution.

2. Package Contents
Please check the package for the following items:
- 1 x LDNIO 6-in-1 GaN 140W Charging Block (Model: A6140C)
- 1 x 5FT AC Extension Cable
- 3 x Interchangeable Mini Plugs (US Plug, UK Plug, EU Plug)
- 1 x 100W USB-C to USB-C Charging Cable

3. Setup Instructions
3.1 Attaching/Replacing Plugs
- Identify the appropriate regional plug (US, UK, or EU) for your power outlet.
- Align the chosen plug with the charger's input slot.
- Press the 'PUSH' button on the charger and slide the plug into place until it clicks securely.
- To remove, press the 'PUSH' button and slide the plug out.

3.2 Connecting to Power
- Attach the desired regional plug to the charger.
- Connect the 5FT AC extension cable to the charger's input port.
- Plug the extension cable into a compatible wall outlet (100-240Vac, 50/60Hz).
- The charger's LED display will illuminate, indicating it is powered on.

4. Operating Instructions
4.1 Connecting Devices
The charger features 3 USB-C ports and 3 USB-A ports, all supporting fast charging. Connect your devices using appropriate charging cables (e.g., the included 100W USB-C to USB-C cable for compatible devices).
- USB-C1/C2 Ports: Ideal for MacBooks, HP/DELL/LG series laptops, Microsoft Surface PCs, Google Chromebooks, Lenovo/HUAWEI series laptops.
- USB-C3 Port: Suitable for iPads, iPhones, Samsung Galaxy series, Google/LG/Huawei/Xiaomi smartphones, Nintendo Switch, and gamepads.
- USB-A1/A2/A3 Ports: Compatible with tablets, phones, Kindle, Echo/Alexa devices, AirPods, iWatch, and more.


4.2 LED Display and One-Button Operation
The charger features an LED display that shows the power output for each port and a multi-function button for control.
- Power-on: The display is fully bright for self-testing.
- Charging: The power display value will be directly shown on the corresponding detection port.
- Fast Charging: A green lightning symbol lights up next to the wattage.
- No Load: The screen does not light up. "0W" will be displayed when the button shows full output.
One-Button Operation:
- Standby: When in standby, press the button once to turn the screen on. Press again to turn off the screen.
- Auto-off: Press the button twice to light up all screens; they will automatically turn off after 2 seconds.
- Power Off: Press and hold the button for 2 seconds to turn off the power to all ports.


4.3 Fast Charging Capabilities
The charger supports various fast charging protocols, including USB PD, Qualcomm Quick Charge (QC3.0, QC2.0, QC5), Samsung Adaptive Fast Charge, BC1.2, AFC, FCP, and SCP.
- USB-C Ports (C1/C2/C3): Each supports up to 100W (Max) with PPS 3.3-21V/5A. When charging two laptops, USB-C1/C2/C3 can each support 65W fast charging.
- USB-A Ports (A1/A2/A3): Each supports up to 30W (Max) with QC3.0/QC2.0/AFC/FCP/SCP protocols.



5. Maintenance
- Keep the charger clean and dry. Avoid exposure to moisture or extreme temperatures.
- Wipe the surface with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Store the charger in a cool, dry place when not in use.
- Ensure cables are not bent sharply or tangled to prevent damage.
6. Troubleshooting
6.1 Common Issues and Solutions
- Q: Why do all ports shut down and restart for a moment when I plug in a new device?
- A: This is normal behavior. When a new device is connected, the charger's intelligent chip re-shunts and readjusts the power distribution to all active ports to optimize charging efficiency. This brief interruption ensures safe and efficient power delivery.
- Q: Why does the wattage displayed constantly change during charging?
- A: The charging process is dynamic. The wattage displayed reflects the real-time power draw, which is determined by the connected device's battery state and charging optimization algorithms. Fluctuations are normal.
- Q: Why isn't the wattage displayed when charging, or why does it show 0W?
- A: If the power draw is very low (e.g., between 0-5W), the display might show 0W for values less than 1W. This does not mean no power is being delivered, but rather that the power is below the display's minimum threshold for showing a non-zero value.
- Q: Why does the 140W charger seem to charge slower sometimes?
- A: This is normal for all chargers. Device manufacturers implement charging speed limits to protect battery health, especially when the battery level exceeds 80%. The fastest charging typically occurs when the device's battery is below 50%.
- Q: My Huawei, Xiaomi, OPPO, or Samsung mobile phone's charging power is not as high as expected.
- A: Due to specific Android phone charging protocols, this charger supports Huawei's maximum 22.5W Super Fast Charge, Xiaomi's maximum 27W, Oppo/Vivo's maximum 20W, and Samsung's 45W. Ensure your laptop supports the PD protocol if you expect high-speed charging for it, as some laptops do not.
- Q: Does the 140W charger get excessively hot?
- A: It is normal for chargers to generate some heat during operation due to energy transfer from AC to DC. The charger's shell is made from 750°C fireproof PC material, and it includes a temperature control IC chip that automatically cools down if the temperature exceeds 70°C, ensuring safe operation.
- Q: Why is the displayed power low when charging?
- A: The charger intelligently adjusts and allocates the optimal charging power based on the connected device's battery level. When a device's power is higher, the allocated charging power will be lower to protect the battery. Conversely, a lower battery level will result in higher allocated charging power. The charger supports up to PD 100W and PPS 45W fast charge.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | A6140C |
| Max. Output Power | 140W |
| Input | 100-240Vac ~ 50/60Hz 2.5A Max |
| Output Interface | 3 USB-C Ports, 3 USB-A Ports |
| USB-C1/C2 Output | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A 100W (Max) PPS: 3.3-21V/5A |
| USB-C3 Output | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A 100W (Max) PPS: 3.3-21V/5A |
| USB-A1/A2/A3 Output | 4.5V/5A, 5V/4.5A, 5V/3A, 9V/3A, 12V/2.5A, 20V/1.5A 30W (Max) |
| Combined Output (C1+C2+C3) | 65W + 45W + 30W (140W Max) |
| Applied Fast Charge Protocols | Samsung Adaptive Fast Charge, USB PD, Other, BC1.2, Qualcomm Quick Charge |
| GaN Technology | Yes |
| Display Screen | Yes |
| Material | PC+ABS V0 fireproof |
| Enclosure Size | 111.7mm*90.1mm*34mm |
| Quality Certification | CE, UL, CCC |
| Input Cord | OD5.0mm length: 1.5M |
| Color | Black |

8. Safety Features
The LDNIO 140W GaN charger is equipped with multiple safety protections to ensure the safety of your devices and the charger itself:
- Over-current protection
- Over-power protection
- Over-voltage protection
- Over-charge protection
- Over-temperature protection
- Short-circuit protection
- Electromagnetic field protection
- Low voltage protection
- Restoration of protection


9. User Tips
- For optimal fast charging of smartphones, connect them when their battery level is below 50%.
- Always use high-quality charging cables that are compatible with your devices and the charger's fast charging protocols.
- If charging a laptop, ensure your laptop supports the Power Delivery (PD) protocol for maximum charging speed.
- The charger's intelligent power distribution may cause a brief restart of all ports when a new device is connected; this is normal and ensures efficient power allocation.
- Minor heat generation during charging is normal due to energy conversion. The charger's built-in temperature control ensures safe operation.
10. Product Demonstration Video
11. Warranty and Support
For warranty information and customer support, please refer to the official LDNIO website or contact your retailer. Keep your purchase receipt for any warranty claims.




