Introduction
This user manual provides essential information for the safe and effective use of your Yustda AC Power Cord. This power cord is designed to provide reliable power to compatible iRobot Roomba robotic vacuum cleaner charging docks. Please read this manual thoroughly before use and retain it for future reference.

Image: The Yustda AC Power Cord, shown coiled, featuring a two-prong US standard plug on one end and a C7 connector on the other, designed for connecting to a charging dock.
Product Features
The Yustda AC Power Cord is engineered for durability and reliable performance, offering several key features:
- High Quality Construction: Manufactured with high-quality materials for long-lasting use.
- Standard Compatibility: Features a 2-prong USA standard power cable design.
- Optimal Length: Provides a generous cable length of 6 feet (approximately 1.8 meters) for flexible placement.
- Safety Protections: Incorporates multiple safety features including over-temperature, over-voltage, over-current, and short-circuit protection.
- Durable & Compact Design: Built to withstand daily use while maintaining a compact form factor.

Image: A cross-section view illustrating the internal components of the power cable, highlighting the high-quality copper wire conductors and the PVC insulation jacket for durability and safety.

Image: An illustration of the power adapter (not included with this cord, but representing the safety features of the system it powers) with icons indicating various safety protections: over-temperature, over-voltage, over-current, and short-circuit protection.

Image: A close-up view of the power adapter's plug, emphasizing its durable construction and compact design, suitable for various home and travel environments.
Compatibility
This Yustda AC Power Cord is specifically designed to be compatible with a wide range of iRobot Roomba robotic vacuum cleaner models and their integrated home base charging docks. Compatible models include, but are not limited to:
- iRobot Roomba 800 Series: 805, 880, 870, 860, 864
- iRobot Roomba 900 Series: 980, 960, 980R, R980R
- iRobot Roomba i3 Series: i3, i 3150, i3150, i315020, RVD-Y1
- iRobot Roomba i3+ Series: i3+, i3550, i355020
Ensure your Roomba model is listed above or consult your Roomba's original power requirements to confirm compatibility.
Setup Instructions
- Unpack the Cord: Carefully remove the Yustda AC Power Cord from its packaging.
- Locate Charging Dock Port: Identify the power input port on your iRobot Roomba's integrated home base charging dock. This is typically a two-pin receptacle.
- Connect to Dock: Insert the C7 connector (the figure-8 shaped end) of the Yustda power cord firmly into the power input port of the Roomba charging dock.
- Connect to Power Outlet: Plug the 2-prong USA standard plug end of the power cord into a standard, grounded 120V AC wall outlet.
- Verify Connection: Ensure both ends of the cord are securely connected. The charging dock should now receive power, indicated by its power indicator light (refer to your Roomba's manual for specific indicator behavior).
Always ensure the power outlet is easily accessible for quick disconnection if needed.
Operation
Once the Yustda AC Power Cord is correctly connected to the iRobot Roomba charging dock and a live power outlet, it will continuously supply power to the dock. The charging dock will then be ready to charge your Roomba robotic vacuum cleaner when it docks. No further user interaction is required for the power cord itself during operation.
- Charging: Place your Roomba onto the charging dock. The dock will automatically begin charging the robot's battery.
- Power Indicator: Observe the power indicator on your Roomba charging dock to confirm it is receiving power and functioning correctly.
Care and Maintenance
To ensure the longevity and safe operation of your Yustda AC Power Cord, follow these simple maintenance guidelines:
- Keep Clean: Periodically wipe the cord with a dry, soft cloth to remove dust and dirt. Do not use liquid cleaners directly on the cord or plugs.
- Avoid Damage: Do not bend, twist, or crimp the cord excessively. Avoid placing heavy objects on the cord or running it under carpets where it could be damaged or overheat.
- Proper Storage: When not in use, coil the cord loosely. Avoid tight coiling, which can stress the internal wires. Store in a cool, dry place.
- Inspect Regularly: Before each use, visually inspect the cord and plugs for any signs of damage, such as cuts, fraying, or bent prongs. If any damage is observed, discontinue use immediately and replace the cord.
- Unplug Safely: Always grasp the plug, not the cord, when unplugging from the wall outlet or the charging dock.
Troubleshooting
If you encounter issues with your Yustda AC Power Cord, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Charging dock not receiving power. | Cord not fully plugged in; Wall outlet not active; Damaged cord. | Ensure both ends of the cord are securely plugged in. Test the wall outlet with another device. Inspect the cord for damage; if damaged, replace it. |
| Roomba not charging when docked. | Power cord issue; Roomba or dock issue. | Verify the charging dock's power indicator is on. If the dock has power, the issue may be with the Roomba or the dock itself (refer to your Roomba's manual). |
| Cord feels warm during use. | Normal operation; Overload; Damaged cord. | A slight warmth is normal. If the cord feels excessively hot, unplug it immediately. Ensure it's not overloaded (though unlikely for this product). Replace if damaged. |
If the problem persists after trying these solutions, please contact customer support.
Specifications
| Attribute | Detail |
|---|---|
| Brand | YUSTDA |
| Model Number | PA-90W |
| Cable Length | 6 feet (1.8 meters) |
| Connector Type (Wall) | 2-Prong USA Standard Plug |
| Connector Type (Device) | C7 (Figure-8) |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| Date First Available | July 16, 2021 |
Warranty and Durability
The Yustda AC Power Cord is manufactured with high-quality control procedures to ensure safe and durable operation. While specific warranty terms are not detailed in this manual, the product is designed for reliable performance over an extended period. For any warranty-related inquiries, please contact customer support.
Customer Support
If you have any questions, concerns, or require assistance with your Yustda AC Power Cord, please do not hesitate to contact our customer service team. We are committed to providing professional support.
Email: epcustomerservice@yahoo.com