1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl 26.5V AC/DC Adapter. This power supply is designed to provide reliable charging for compatible devices, specifically YONOK RSH09, RSHO9, and R5H09 cordless vacuum cleaners. Please read this manual thoroughly before use and retain it for future reference.

Image 1.1: The onerbl 26.5V AC/DC Adapter. This image displays the main unit of the power adapter with its attached power cord and barrel connector.
2. Safety Information
To ensure safe operation and prevent damage, observe the following safety precautions:
- Compatibility: Use this adapter only with devices that require 26.5V DC input and have a compatible connector. Verify your device's power requirements before connecting.
- Power Source: Connect the adapter only to a standard AC 100-240V, 50/60Hz wall outlet.
- Protection Features: The adapter is equipped with built-in safeguards including over-voltage protection, over-heat protection, short-circuit protection, and over-current protection.
- Environment: Do not expose the adapter to water, moisture, or extreme temperatures. Use in a well-ventilated area.
- Handling: Do not disassemble, modify, or attempt to repair the adapter. Avoid dropping or subjecting it to strong impacts.
- Cord Care: Do not pull the cord to disconnect from the outlet. Always grasp the plug. Keep the cord away from heat sources and sharp edges.

Image 2.1: Illustration of the adapter's internal smart chip providing multiple safety protections, including short-circuit, over-voltage, and over-current protection.
3. Package Contents
Verify that all items are present in the package:
- 1 x onerbl 26.5V AC/DC Adapter
4. Setup
Follow these steps to set up your AC/DC adapter:
- Identify Device: Ensure your device (e.g., YONOK RSH09 vacuum cleaner) requires a 26.5V DC power input and has a compatible charging port.
- Connect Adapter: Insert the barrel connector of the onerbl AC/DC Adapter firmly into the charging port of your device.
- Plug into Power: Plug the AC plug of the adapter into a standard wall outlet (AC 100-240V).

Image 4.1: The AC/DC adapter plugged into a power strip, demonstrating a typical connection scenario. The adapter is compact and fits well alongside other plugs.
5. Operating Instructions
Once connected, the adapter will begin supplying power to your device. For charging, ensure your device's power indicator confirms it is receiving charge. Disconnect the adapter from the wall outlet and your device once charging is complete or when the device is not in use.
6. Maintenance
Proper maintenance ensures the longevity of your adapter:
- Cleaning: Disconnect the adapter from power 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 moisture when not in use. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires or cracked casing. Discontinue use if damage is found.
7. Troubleshooting
If you encounter issues with your adapter, refer to the following:
Adapter Not Supplying Power/Charging
- Check Connections: Ensure the adapter is securely plugged into both the wall outlet and your device.
- Verify Outlet: Test the wall outlet with another device to confirm it is functional.
- Device Compatibility: Double-check that your device's power requirements (voltage and connector type) match the adapter's specifications. This adapter is specifically for 26.5V DC devices like the YONOK RSH09 series.
- Inspect for Damage: Examine the adapter and cable for any visible damage. If damaged, discontinue use.
- Device Issue: If the adapter appears functional but the device still does not charge, the issue may lie with the device's battery or charging port.
8. Specifications
| Feature | Specification |
|---|---|
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 26.5V |
| Output Current | 0.5A (500mA) |
| Wattage | 200W (Max, for compatible devices) |
| Connector Type | Proprietary Barrel Connector |
| Compatible Devices | YONOK RSH09, RSHO9, R5H09 Cordless Vacuum Cleaners |
| Cable Length | Approx. 76 inches (6.3 feet) |
| Item Weight | 6.3 ounces |
| Dimensions (Adapter Body) | Approx. 2.6 x 1.6 x 1.2 inches |
| Special Features | Lightweight Design, Travel-friendly, Over Voltage Protection, Over Heat Protection |

Image 8.1: Visual representation of the adapter's dimensions (2.6 x 1.6 x 1.2 inches) and cable length (76 inches).

Image 8.2: Front and side views of the onerbl AC/DC adapter, showing the input/output specifications printed on the casing and the plug design.
9. Warranty and Support
For information regarding warranty coverage or technical support, please refer to the product packaging or contact the retailer from whom the product was purchased. Keep your purchase receipt as proof of purchase.