1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl AC/DC Adapter. This adapter is designed to provide a reliable power supply for compatible devices, specifically Anker Roav Jump Starter Pro models R3120 and R3130. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to disassemble or modify the adapter.
- Ensure the adapter is used with devices that match its output specifications (5V).
- Unplug the adapter from the power outlet when not in use or during electrical storms.
- Keep out of reach of children.
This adapter incorporates multiple protection features:
- Over Voltage Protection: Safeguards against excessive voltage input.
- Over Heat Protection: Prevents overheating during operation.
- Short-Circuit Protection: Protects against damage from short circuits.

Image: Smart chip protection features including short-circuit, over-voltage, and over-current protection.
3. Product Overview
The onerbl AC/DC Adapter is a high-quality replacement power supply designed for specific Anker Roav Jump Starter models. It features a durable construction for reliable performance.
Components:
- AC Plug: Standard US 2-prong plug for wall outlets.
- Adapter Body: Houses the internal circuitry.
- Output Cable: Connects the adapter to your device.
- Barrel Connector: The output tip that plugs into the charging port of your jump starter.

Image: The onerbl AC/DC adapter, showing the main unit, cable, and barrel connector.

Image: Front and side views of the adapter, detailing input specifications.
Key Features:
- Input: AC 100-240V, 50/60Hz (Worldwide compatible).
- Output: 5V (specific amperage not detailed, but compatible with listed jump starters).
- Cable Length: Approximately 76 inches (6.3 feet).
- Durable Design: Features copper wire and a PVC jacket for enhanced longevity.

Image: Adapter dimensions and cable length of 76 inches.

Image: Illustration of the cable's durable design, featuring copper wire and a PVC jacket.
4. Setup
Follow these steps to set up your onerbl AC/DC Adapter:
- Ensure the adapter's barrel connector is compatible with your Anker Roav Jump Starter Pro (R3120 or R3130) charging port.
- Plug the barrel connector end of the adapter cable into the designated charging input port on your Anker Roav Jump Starter.
- Insert the AC plug of the adapter into a standard wall power outlet (100-240V AC).
- Confirm that the jump starter indicates it is receiving power or charging, typically via an LED indicator.

Image: The adapter connected to a power source and a device, illustrating a typical charging setup.
5. Operating Instructions
Once properly set up, the adapter will begin supplying power to your connected device. The primary function of this adapter is to charge compatible Anker Roav Jump Starters.
- Connect the adapter to your jump starter and a power outlet as described in the 'Setup' section.
- Allow the jump starter to charge until its battery indicator shows a full charge. Charging times may vary depending on the jump starter's battery capacity and current charge level.
- After charging is complete, disconnect the adapter from both the jump starter and the wall outlet.
6. Maintenance
Proper maintenance ensures the longevity and performance of your adapter:
- Cleaning: Use a dry, soft cloth to wipe the adapter. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and moisture when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the cable and connector for any signs of wear, cuts, or damage. Discontinue use if damage is observed.
7. Troubleshooting
If you encounter issues with your adapter, refer to the following common problems and solutions:
- No Power Output:
- Ensure the adapter is securely plugged into a working wall outlet.
- Verify that the barrel connector is fully inserted into the jump starter's charging port.
- Test the wall outlet with another device to confirm it has power.
- Slow Charging:
- Ensure the jump starter is not being used simultaneously for other functions that draw significant power.
- Confirm the adapter's specifications match the jump starter's charging requirements.
- Adapter Overheating:
- Unplug the adapter immediately.
- Ensure adequate ventilation around the adapter. Do not cover it.
- If overheating persists, discontinue use and contact support.
If these steps do not resolve the issue, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | onerbl |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | 5 Volts |
| Cable Length | 76 inches (approx. 6.3 feet) |
| Output Connector | Barrel Connector |
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact the retailer from whom the product was purchased. You may also reach out to the manufacturer, Shenzhen Waweis Technology Co., Ltd, for assistance.





