1. Introduction
This user manual provides essential information for the safe and effective use of your onerbl 16.8V AC/DC Adapter, Model XVE-1680500. This power supply is designed to provide reliable power and charging capabilities for compatible devices, including VARON NT-01, NT01, VP01, and VP-01 Portable Air Cleaners and Oxygen Concentrators.
The adapter features a robust design with built-in safety protections to ensure stable operation and device longevity.

Image 1.1: The onerbl 16.8V AC/DC Adapter, showing the main power brick, the DC output cable, and the detachable AC input power cord.
2. Product Features
- Input Voltage: AC 100-240V, 50/60Hz (Worldwide AC Input)
- Output Voltage: DC 16.8V
- Safety Protections: Equipped with smart chip technology for multiple layers of protection, including:
- Over Voltage Protection
- Over Heat Protection
- Short-Circuit Protection
- Over-Current Protection
- High Quality Construction: Features durable copper wire and PVC jacket for enhanced longevity.
- Extended Cord Design: Provides flexibility in placement with a total cable length of approximately 127.8 inches (3.25 meters).

Image 2.1: Visual representation of the smart chip's multiple protection features, including short-circuit, over-voltage, and over-current protection.

Image 2.2: Illustration highlighting the quality construction of the cable with copper wire and a durable PVC jacket.

Image 2.3: Examples demonstrating the flexibility provided by the extended cord design, allowing for convenient placement of the adapter.
3. Setup Instructions
- Unpack the Adapter: Carefully remove the AC/DC adapter and its power cord from the packaging.
- Connect the AC Power Cord: Insert the figure-8 connector of the AC power cord into the corresponding port on the adapter unit. Ensure it is firmly seated.

Image 3.1: The detachable AC power cord, which connects the adapter to a wall outlet.
- Connect to Power Outlet: Plug the two-prong end of the AC power cord into a standard wall electrical outlet (AC 100-240V).
- Connect to Device: Insert the DC output plug of the adapter into the power input port of your VARON NT-01/VP-01 Portable Air Cleaner or Oxygen Concentrator.

Image 3.2: The adapter connected to a wall outlet, ready to power a compatible device.
- Verify Connection: A blue indicator light on the adapter unit will illuminate when it is properly connected to a power source and ready for operation.
4. Operating Instructions
Once properly set up, the onerbl 16.8V AC/DC Adapter operates automatically. It will provide the necessary 16.8V DC power to your compatible device and initiate battery charging if applicable.
- Ensure the adapter is placed in a well-ventilated area to prevent overheating.
- The blue indicator light signifies that the adapter is receiving power and functioning correctly.
- The adapter is designed for continuous use, but it is recommended to unplug it from the wall outlet when not in use for extended periods.
5. Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your AC/DC adapter.
- Cleaning: Disconnect the adapter from all power sources and devices before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or abrasive materials.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. When storing, coil the cables loosely to prevent kinks or damage.
- Handling: Avoid dropping the adapter or subjecting it to strong impacts. Do not pull on the cables to disconnect the adapter; always grasp the plug itself.
- Environmental Conditions: Do not expose the adapter to water, high humidity, or corrosive environments.
6. Troubleshooting
If you encounter issues with your adapter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Adapter not powering on (no blue light) |
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| Device not charging/powering |
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| Adapter feels hot |
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7. Specifications

Image 7.1: Detailed dimensions of the adapter unit and its associated cables, including the total cable length of 127.8 inches.
| Attribute | Detail |
|---|---|
| Brand | onerbl |
| Model Number | XVE-1680500 |
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 16.8V |
| Plug Format | Type A (US Standard) |
| Total Power Outlets | 1 (DC output) |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Cable Length (Total) | Approx. 127.8 inches (3.25 meters) |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.
For general inquiries or further assistance, please visit the onerbl brand's official support channels or the retailer's customer service.



