Introduction
This manual provides essential instructions for the safe and efficient use of your Blackweb BWA18HO021 175 Watt Power Strip Inverter. Please read this manual thoroughly before operating the device and retain it for future reference.
Safety Information
To ensure safe operation and prevent damage to the inverter or connected devices, observe the following precautions:
- Do not expose the inverter to water, rain, or excessive moisture.
- Do not disassemble the inverter. Refer all servicing to qualified personnel.
- Use the inverter in a well-ventilated area. Do not block ventilation openings.
- Ensure the vehicle engine is running for prolonged use to avoid draining the vehicle's battery.
- Do not exceed the inverter's rated wattage of 175 Watts. Overloading can cause damage or fire.
- Keep out of reach of children.
- Avoid placing the inverter in direct sunlight or near heat sources.
Product Features
The Blackweb BWA18HO021 Power Strip Inverter is designed for convenient power access in your vehicle. Key features include:
- 175 Watts Continuous Power: Provides ample power for charging various devices.
- Multiple Outlets: Equipped with 2 standard AC outlets and 2 USB ports for versatile charging.
- Compact Design: Ideal for travel and easy storage.
- 3 ft. (91.4 cm) Power Cord: Offers flexibility in placement within your vehicle.
- Indicator Light: Clearly shows when the inverter is powered on and ready for use.

Image: The Blackweb BWA18HO021 Power Strip Inverter, featuring two AC outlets, two USB ports, and the attached 12V DC car adapter plug.
Setup
Follow these steps to set up your power inverter:
- Locate the 12V DC Power Outlet: Identify the cigarette lighter or auxiliary power outlet in your vehicle.
- Plug in the Inverter: Firmly insert the inverter's 12V DC car adapter plug into your vehicle's 12V DC power outlet.
- Verify Power: The indicator light on the inverter should illuminate, signaling that the unit is receiving power and is ready for use.

Image: A detailed view of the 12V DC car adapter plug, which connects the inverter to the vehicle's power source.
Operating Instructions
Once the inverter is set up and powered on, you can connect your devices:
- Connect Devices: Plug your devices into the available AC outlets or USB ports on the inverter. Ensure the total wattage of all connected devices does not exceed 175 Watts.
- Monitor Charging: The inverter will begin supplying power to your devices. Observe your devices to confirm they are charging correctly.
- Disconnect When Not in Use: For optimal battery life and safety, disconnect devices and unplug the inverter from the vehicle's 12V DC outlet when not in use.

Image: The Blackweb inverter actively charging a smartphone via a USB port, positioned within a car's interior.
Maintenance
Proper maintenance ensures the longevity and performance of your inverter:
- Cleaning: Wipe the exterior of the inverter with a dry, soft cloth. Do not use liquid cleaners or solvents.
- Storage: Store the inverter in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Connection Check: Periodically inspect the 12V DC plug and power cord for any signs of damage or wear.
Troubleshooting
If you encounter issues with your inverter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not powering on (no indicator light) | Loose connection, vehicle's 12V DC outlet not supplying power, blown fuse in vehicle. | Ensure the inverter plug is firmly seated. Check if the vehicle's 12V DC outlet is functional. Consult your vehicle's manual for fuse location and replacement. |
| Devices not charging | Inverter is off, device not properly connected, total wattage exceeds 175W. | Verify the inverter's indicator light is on. Reconnect devices. Reduce the number or power consumption of connected devices. |
| Inverter shuts down during use | Overload, overheating, low vehicle battery voltage. | Disconnect some devices to reduce load. Ensure inverter ventilation is not blocked. Start vehicle engine to recharge battery. |
Specifications
Detailed specifications for the Blackweb BWA18HO021 Power Strip Inverter:
- Brand: Blackweb
- Model Number: BWA18HO021
- Power Source: Corded Electric (12V DC vehicle outlet)
- Continuous Output Power: 175 Watts
- Peak Output Power: 350 Watts
- Output Voltage: 120 Volts (AC)
- Total Outlets: 4 (2 AC outlets, 2 USB ports)
- Color: Black
- Item Weight: 13.3 Ounces
- UPC/GTIN: 681131229876

Image: The full length of the Blackweb inverter's power cord, terminating in the 12V DC car adapter plug.
Warranty and Support
This product comes with a limited warranty. For specific warranty details, please refer to the documentation included with your purchase or contact Blackweb customer support. For technical assistance or inquiries, please visit the manufacturer's official website or contact their support channels.