Introduction
This user manual provides essential information for the safe and effective use of your onerbl AC-DC Adapter. This adapter is specifically designed to power and charge the TOTTE VT-DH007 Cordless Stick Vacuum Cleaner. Please read this manual thoroughly before using the product and retain it for future reference.
Safety Information
To prevent injury or damage to your device, observe the following safety precautions:
- Use this adapter only with the specified TOTTE VT-DH007 Cordless Stick Vacuum Cleaner. Using it with incompatible devices may cause damage or malfunction.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Do not disassemble, modify, or attempt to repair the adapter. Refer all servicing to qualified personnel.
- Keep the adapter and its cable out of reach of children and pets.
- Unplug the adapter from the power outlet when not in use or during electrical storms.
- Ensure the power outlet is easily accessible and not overloaded.
Setup
- Unpack the Adapter: Carefully remove the AC-DC adapter from its packaging.
- Verify Compatibility: Ensure your device is the TOTTE VT-DH007 Cordless Stick Vacuum Cleaner. This adapter is specifically designed for models requiring a 25.9V 2500mAh Li-ion battery power supply. Note: The 25.9V refers to the vacuum's battery voltage, not the charger's output voltage.
- Connect to Vacuum: Insert the barrel connector of the adapter firmly into the charging port of your TOTTE VT-DH007 vacuum cleaner.
- Connect to Power Outlet: Plug the AC adapter into a standard 110V AC electrical wall outlet.

The adapter is shown plugged into a power strip on a desk, demonstrating its compact size and how it fits alongside other plugs without obstructing them.
Operating Instructions
- Initiate Charging: Once connected, the adapter will begin supplying power to your vacuum cleaner, either operating it directly or charging its battery.
- Charging Indicator: Refer to your TOTTE VT-DH007 vacuum cleaner's user manual for specific charging indicator lights or screen displays that indicate charging status.
- Battery Lifespan: Rechargeable batteries have a limited lifespan, typically 1 to 3 years. If the vacuum's battery is old or faulty, it may not accept a charge. This is a characteristic of the battery itself and not an indication of an adapter malfunction.
Maintenance
- Cleaning: Disconnect the adapter from the power outlet and the vacuum cleaner before cleaning. Use a dry, soft cloth to wipe the adapter. Do not use liquid cleaners or abrasive materials.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid areas with extreme temperatures or high humidity.
- Cable Care: Do not bend, twist, or pull the cable excessively. Avoid placing heavy objects on the cable, as this can cause internal damage.
Troubleshooting
- Adapter Not Supplying Power:
- Ensure the adapter is securely plugged into both the wall outlet and the vacuum cleaner.
- Verify the wall outlet is functional by testing it with another device.
- Check the adapter cable for any visible damage. If damaged, discontinue use immediately.
- Vacuum Not Charging/Operating:
- Confirm the vacuum's battery is not at the end of its lifespan (typically 1-3 years). An old or faulty battery may not accept a charge, which is not an adapter issue.
- Ensure the vacuum cleaner itself is functioning correctly by consulting its own user manual.
- If the issue persists after checking these points, contact customer support for further assistance.
Specifications
| Brand | onerbl |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Input Voltage | 110 Volts (AC) |
| Connector Type | Barrel Connector |
| Special Feature | Short Circuit Protection |
| Color | Black |
| Compatible Devices | TOTTE VT-DH007 VTDH007 SKU KF440060-01 KF44006001 25.9V 2500mAh Li-ion Battery 550W 45Kpa Lightweight Cordless Stick Vacuum Cleaner |

This image displays the onerbl AC-DC adapter from two angles, showing its compact design and the input specifications printed on its surface.

This image illustrates the physical dimensions of the adapter, measuring approximately 2.6 inches in length, 1.6 inches in width, and 1.2 inches in height. The attached cable has a length of 76 inches.
Warranty and Support
Specific warranty details for this product may vary. Please refer to the purchase documentation or contact your retailer for information regarding warranty coverage. For technical support or further inquiries, please contact the retailer or manufacturer directly.