1. Introduction
Thank you for choosing the Maerknon 20W PD Charger. This fast wall charger is designed to provide efficient and safe charging for a wide range of compatible devices, including smartphones and tablets. It features both USB-A (QC3.0) and USB-C (PD) ports for versatile charging options. This manual provides essential information on product usage, safety, and maintenance to ensure optimal performance and longevity of your charger.
Image: The Maerknon 20W PD+QC3.0 Charger, showcasing both black and white versions with EU plugs.
2. Safety Information
The correct use of a mobile phone charger can extend the lifespan of the charger and the phone battery, and at the same time avoid safety hazards such as short circuits, overheating, and electric shock. The core principle is to match the equipment, follow the operation procedures, and stay away from potential hazard environments.
Important Safety Precautions:
- Warning: If you hear abnormal sounds, feel the device getting hot, or smell a burnt smell, immediately cut off the power and stop using it.
- Avoid damp and high-temperature conditions.
- Do not charge while under heavy load.
- Avoid covering or squeezing the charger during operation.
- This product contains small parts and is a CHOKING HAZARD. Not for children under 3 years.
- The charger is equipped with intelligent control features to prevent over power, over current, over voltage, short circuit, and temperature protection.
Image: Icons illustrating the intelligent control features, including over power, over current, over voltage, short circuit, and temperature protection.
3. Product Features and Specifications
Key Features:
- Dual Ports: Equipped with both USB-A (Quick Charge 3.0) and USB-C (Power Delivery) ports to charge two devices simultaneously.
- Fast Charging: Supports USB PD, QC 4.0, QC 3.0, QC 2.0, Apple 2.4A, Samsung AFC, and Huawei FCP protocols for rapid charging.
- 20W Max Output: Delivers up to 20W of power for quick charging compatible devices, achieving up to 60% charge in approximately 35 minutes for some phones.
- Intelligent Control: Built-in smart chip provides multiple protection features against over power, over current, over voltage, short circuit, and high temperature.
- Constant Temperature Charging: Designed for low temperature charging to effectively protect equipment from damage.
- Compact Design: Travel-friendly design with available EU or US plug types.
Image: The charger connected to a wall outlet, demonstrating simultaneous charging of two devices via its USB-A and USB-C ports.
Image: A comparison chart showing charging times for iPhone XS, Samsung S10, and iPad mini using QC2.0 vs. QC3.0, highlighting faster charging with QC3.0.
Image: Graphic illustrating the charger's ability to fast charge a phone up to 60% in 35 minutes.
Technical Specifications:
| Attribute | Value |
|---|---|
| Model Number | 20W PD Charger |
| Max. Output Power | 20W |
| Applied Fast Charge Protocols | USB PD, QC 4.0, QC 3.0, QC 2.0 |
| Output Interface | USB-A, Type-C |
| Input | AC100-240V 50/60Hz 0.35A |
| Output | 5V=3A(max), 9V=2.4A(max), 12V=1.5A(max) |
| Dimensions (EU Plug) | 82mm (H) x 45mm (W) x 63mm (D) |
| Dimensions (US Plug) | 82mm (H) x 45mm (W) x 27mm (D) |
| Weight | Approx. 0.045 kg |
| Color Options | Black, White |
| Origin | Mainland China |
Image: Detailed product dimensions for both EU and US plug types.
Image: An internal view of the charger highlighting the built-in smart chip, which ensures fast and stable charging without damaging the device.
4. Setup
- Inspection: Before initial use, carefully check that the charger and any accompanying accessories are undamaged. Ensure the charging ports are free of any foreign objects or debris.
- Connection to Power: Insert the charger into a compatible wall power socket (EU or US type, depending on your model).
- Device Connection: Connect your device (smartphone, tablet, etc.) to the charger using a suitable USB-A or USB-C cable.
5. Operating Instructions
- Initiating Charge: Once the charger is plugged into the wall and your device is connected, charging will begin automatically.
- Optimal Charging Environment: For best performance and safety, use the charger in a dry, well-ventilated area. Avoid charging in damp or high-temperature conditions.
- Avoid Obstruction: Do not cover the charger or your device with blankets, clothing, or other materials while charging, as this can lead to overheating.
- Heavy Load: Do not attempt to charge devices that draw excessive power beyond the charger's specifications, as this may damage the charger or the device.
6. Maintenance
- Cleaning: Disconnect the charger from the power outlet before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or aerosols.
- Storage: When not in use, disconnect the charger from the power outlet. Wrap the charging cable naturally (avoiding tight bends or kinks) and store the charger in a dry, cool place away from direct sunlight and moisture.
- Handling: Avoid dropping or subjecting the charger to strong impacts.
7. Troubleshooting
- Device Not Charging:
- Ensure the charger is securely plugged into a working wall outlet.
- Check that the charging cable is properly connected to both the charger and your device.
- Try using a different charging cable or a different wall outlet.
- Verify that your device's charging port is clean and free of debris.
- Slow Charging:
- Ensure your device and cable support fast charging protocols (PD or QC3.0) to utilize the charger's full potential.
- Avoid using your device heavily while it is charging.
- Overheating/Abnormal Behavior:
- If the charger or your device becomes excessively hot, makes abnormal sounds, or emits a burning smell, immediately disconnect it from the power source and discontinue use.
- Ensure adequate ventilation around the charger during use.
8. User Tips
- Cable Quality: Always use high-quality, certified charging cables that are compatible with your device and the charger's fast charging protocols (PD or QC3.0) for optimal performance and safety.
- Unplug When Not in Use: To conserve energy and prolong the life of the charger, unplug it from the wall outlet when not actively charging a device.
- Prioritize PD/QC Ports: For the fastest charging, ensure your device is connected to the appropriate fast-charging port (USB-C for PD, USB-A for QC3.0) and that your device supports these protocols.
9. Compliance and Certifications
This product has obtained CE and CCC certification and complies with the requirements of relevant EU directives and harmonized standards.
Applicable Test Standards:
- EN 55032:2015/A1:2020
- EN 55035:2017/A11:2020
- EN IEC 61000-3-2:2019/A1:2021
- EN 61000-3-3:2013/A2:2021/AC:2022-01
Image: The charger depicted on ice, symbolizing its constant low-temperature charging capability to protect devices.
A detailed user manual in PDF format is available for download. Please refer to the official product page or contact customer support for the link: User manual (PDF)
10. Warranty and Support
Maerknon products are manufactured to high-quality standards. For warranty information, technical support, or any product-related inquiries, please refer to the seller's policies or contact customer service through the platform where the product was purchased. Please retain your proof of purchase for any warranty claims.





