1. Introduction
Thank you for choosing the onerbl 29V AC/DC Adapter. This manual provides essential information for the safe and efficient use of your power supply. Please read these instructions carefully before use and retain them for future reference.
This adapter is designed to provide a stable 29V DC power supply, suitable for devices requiring this specific voltage, such as Limoss MRP75894 wireless rechargeable furniture battery packs.
2. Product Overview
The onerbl 29V AC/DC Adapter is a high-quality replacement power supply featuring robust construction and built-in safety mechanisms. It is designed for reliable performance and compatibility with various devices requiring 29V DC input.
Key Features:
- Input: AC 100-240V 50/60Hz (Worldwide AC Input)
- Output: 29V DC
- Cable Length: Approximately 10 feet (3 meters)
- Safety Protections: Over Voltage Protection, Over Heat Protection, Short-Circuit Protection, Over-Current Protection
- Durable Design: Constructed with quality materials for longevity.
What's in the Box:
- 1 x onerbl 29V AC/DC Adapter
- 2 x USB Cable (Note: While the primary product is an AC/DC adapter, the package includes two USB cables as specified by the manufacturer.)

Image: The onerbl 29V AC/DC Adapter, a compact power supply unit.

Image: Branding for onerbl, highlighting its role as a superior power supply.
3. Specifications
| Brand | onerbl |
| Model | MRP75894 (Compatible) |
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 29V |
| Connector Type | 2-Pin |
| Cable Length | 10 feet (approx. 3 meters) |
| Item Weight | 8 Ounces (approx. 227 grams) |
| Power Source | Corded Electric |
| Mounting Type | Wall Mount |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
4. Safety Information
To ensure safe operation and prevent damage, please observe the following safety guidelines:
- Use the adapter only with devices that require a 29V DC input and have a compatible 2-pin connector.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to open, modify, or repair the adapter. Refer servicing to qualified personnel.
- Ensure the power outlet is easily accessible and unplug the adapter during electrical storms or when unused for long periods.
- Keep out of reach of children.
- The adapter is equipped with multiple protection features to safeguard against electrical hazards.

Image: Diagram illustrating the smart chip's multiple protection features, including short-circuit, over-voltage, and over-current protection.
5. Setup
Follow these steps to set up your onerbl 29V AC/DC Adapter:
- Verify Compatibility: Before connecting, ensure your device (e.g., Limoss MRP75894 battery pack) requires a 29V DC input and has a compatible 2-pin power port.
- Connect to Device: Plug the 2-pin output connector of the adapter firmly into the power input port of your device.
- Connect to Power Outlet: Insert the 2-prong AC plug of the adapter into a standard AC 100-240V wall outlet.
- Power On: Once connected, your device should begin receiving power or charging, depending on its function.

Image: Illustration of the adapter's extended 10 ft cable length, allowing for flexible placement of the power supply unit.
6. Operating Instructions
The onerbl 29V AC/DC Adapter operates automatically once connected to a power source and a compatible device. It provides continuous power or charges the connected battery pack as designed by the device manufacturer.
- Ensure the adapter is securely plugged into both the wall outlet and your device.
- Monitor your device's charging indicator (if applicable) to confirm it is receiving power.
- The adapter is designed for a wide range of applications, including various electronic devices and furniture battery packs.

Image: A visual representation of the wide range of applications for the onerbl adapter, including set-top boxes, routers, batteries, LED strips, oxygen machines, Roomba, game players, depilators, cameras, humidifiers, digital frames, and CCTV.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance 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: When not in use, store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly winding the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires, cracks, or loose connections. Discontinue use if damage is found.

Image: Details on the quality control and durable design, showing the copper wire and PVC jacket construction of the cable, and the robust plug design.
8. 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 the device is correctly connected to the adapter.
- Check if the wall outlet is functional by plugging in another device.
- Device Not Charging/Powering:
- Confirm that your device requires 29V DC input and has a compatible 2-pin connector. Incorrect voltage or connector type can prevent operation.
- Inspect the adapter cable and connectors for any visible damage.
- Adapter Overheating:
- While the adapter has over-heat protection, excessive heat can indicate an issue. Ensure it is used in a well-ventilated area.
- If the adapter becomes excessively hot, disconnect it immediately and contact support.
If problems persist after following these steps, please contact customer support for assistance.
9. Warranty and Support
The onerbl 29V AC/DC Adapter is backed by a manufacturer's warranty. Please refer to your purchase documentation for specific warranty terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact the seller or manufacturer directly. Contact information can typically be found on your purchase receipt or the product packaging.