1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl USB-C 20V AC-DC Adapter. This adapter is designed to provide power and charge the battery for compatible devices, specifically the GPD Win 3 and GPD Win 4 Mini Handheld Video Game Consoles (Models G1618-03, G1618-04).
2. Safety Information
Please read all safety warnings and instructions carefully before use to prevent injury or damage to the product or connected devices.
- Compatibility: Use this adapter only with devices that require a 20V DC USB-C power input, such as the GPD Win 3 and Win 4 consoles. Using it with incompatible devices may cause damage.
- Environment: Do not expose the adapter to water, moisture, high temperatures, or direct sunlight. Operate in a well-ventilated area.
- Physical Damage: Do not use the adapter if the casing or cable is damaged. Do not attempt to open, modify, or repair the adapter yourself. Refer servicing to qualified personnel.
- Power Outlet: Ensure the power outlet used is easily accessible and provides the correct voltage for the adapter.
- Unplugging: Always unplug the adapter from the power outlet when not in use or during electrical storms. Grasp the plug, not the cable, when disconnecting.
- Children: Keep the adapter and its cable out of reach of children.
3. Package Contents
Verify that your package contains the following items:
- 1 x onerbl USB-C 20V AC-DC Adapter
4. Product Overview

Image showing the compact onerbl USB-C 20V AC-DC Adapter with its integrated USB-C cable. This adapter is designed for efficient power delivery to compatible devices.
The onerbl USB-C 20V AC-DC Adapter is a compact power supply unit designed to convert standard AC wall power into the 20V DC power required by your GPD Win 3 or Win 4 console. It features a durable casing and an integrated USB-C connector for direct connection to your device.
5. Setup
Follow these steps to set up your onerbl USB-C 20V AC-DC Adapter:
- Connect to Power Outlet: Insert the AC plug of the adapter firmly into a standard wall power outlet.
- Connect to Device: Insert the USB-C connector of the adapter cable into the USB-C charging port on your GPD Win 3 or Win 4 console.
- Verify Connection: Ensure both connections are secure. Your device should indicate that it is receiving power or charging.
6. Operating Instructions
Once connected, the adapter will automatically begin supplying power to your device and charging its battery. No further user interaction is typically required for basic operation.
- Charging Indication: Refer to your GPD Win 3 or Win 4 console's user manual for specific indicators (e.g., LED lights, on-screen icons) that confirm it is charging.
- Charging Time: Charging time will vary depending on the device's battery level and usage during charging.
7. Maintenance
Proper maintenance ensures the longevity and safe operation of your adapter:
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly winding the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as cuts, fraying, or bent pins. If damage is found, discontinue use immediately.
8. Troubleshooting
If you encounter issues with your adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not charging/receiving power |
|
|
| Adapter feels excessively hot |
|
|
9. Specifications
- Input: AC (Standard Wall Power)
- Output: 20V DC via USB-C
- Compatibility: GPD Win 3, GPD Win 4 Mini Handheld Video Game Consoles (Models G1618-03, G1618-04)
- Protection Features: Over Voltage Protection, Over Heat Protection
- Manufacturer: Shenzhen Waweis Technology Co., Ltd
10. Warranty and Support
This product is manufactured to high-quality standards and tested for reliable performance. For specific warranty details or technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.