1. Introduction
This manual provides essential instructions for the safe and effective use of your FitPow AC/DC Power Adapter. This adapter is designed to provide power to and charge compatible devices, specifically the Duralast 900 Amp Portable Battery Jump Starter, model BP-DL900. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Observe the following safety precautions to prevent damage to the adapter or connected devices, and to ensure personal safety:
- Do not expose to moisture: Keep the adapter away from water, rain, or excessive humidity.
- Proper ventilation: Ensure the adapter is used in a well-ventilated area to prevent overheating.
- Voltage compatibility: This adapter supports a worldwide input voltage range of 100-240VAC. Ensure your wall outlet voltage is within this range.
- Protection features: The adapter includes Over Voltage Protection (OVP), Over Current Protection (OCP), and Short Circuit Protection (SCP) to safeguard your devices. However, avoid intentional short circuits or overloading.
- Inspect before use: Before each use, inspect the adapter and cable for any signs of damage. Do not use if damaged.
- Unplug when not in use: Disconnect the adapter from the power outlet when not in use or during electrical storms.
3. Product Features
- Worldwide Input Voltage: 100-240VAC, 50/60Hz, allowing for international use.
- Advanced Protection: Equipped with OVP (Over Voltage Protection), OCP (Over Current Protection), and SCP (Short Circuit Protection) for enhanced safety and device longevity.
- Reliable Performance: Each unit is tested to ensure great working condition and consistent power delivery.
- Compatibility: Specifically designed as a power supply cord and cable for the Duralast 900 Amp Portable Battery Jump Starter BP-DL900.
4. Setup
Follow these steps to set up your FitPow AC/DC Power Adapter:
- Verify Compatibility: Ensure your device is the Duralast 900 Amp Portable Battery Jump Starter, model BP-DL900, or another device explicitly stated as compatible.
- Connect to Device: Insert the DC output plug of the FitPow adapter firmly into the charging port of your Duralast BP-DL900 Jump Starter.
- Connect to Power Outlet: Plug the AC input prongs of the adapter into a standard 100-240VAC wall outlet.
The jump starter should indicate that it is receiving power or charging, typically via an LED indicator.

Figure 1: FitPow AC/DC Power Adapter showing the main unit, US plug, and connected DC output cable.
5. Operating Instructions
Once the adapter is properly connected, it will begin to supply power or charge the connected device. No further user interaction is typically required for basic operation.
- Charging: Allow the Duralast BP-DL900 Jump Starter to charge until its internal battery indicator shows a full charge, as per the jump starter's own instruction manual.
- Power Supply: If used solely as a power supply, ensure the connected device is operating within its specified power requirements.

Figure 2: Close-up view of the FitPow AC/DC Power Adapter's DC barrel connector, ready for insertion into a compatible device.
6. Maintenance
Proper maintenance ensures the longevity and safe operation 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: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Cable Care: Do not pull on the cable to disconnect the adapter. Always grasp the plug itself. Avoid placing heavy objects on the cable.

Figure 3: Side view of the FitPow AC/DC Power Adapter, highlighting its compact design and ventilation grooves.
7. Troubleshooting
If you encounter issues with your FitPow AC/DC Power Adapter, consider the following:
- No Power Output:
- Ensure the adapter is securely plugged into a working wall outlet.
- Verify the DC output plug is fully inserted into the device's charging port.
- Test the wall outlet with another device to confirm it has power.
- Device Not Charging:
- Confirm the adapter is the correct model for your Duralast BP-DL900 Jump Starter.
- Check the charging port on your jump starter for any obstructions or damage.
- Refer to your jump starter's manual for specific charging indicators and troubleshooting.
- Overheating:
- Disconnect the adapter immediately.
- Ensure adequate ventilation around the adapter. Do not cover it.
- If overheating persists, discontinue use and contact support.
If problems persist after attempting these steps, contact customer support.
8. Specifications
- Product Type: AC/DC Power Adapter
- Brand: FitPow
- Input Voltage: 100-240VAC, 50/60Hz (Worldwide Use)
- Compatibility: Duralast 900 Amp Portable Battery Jump Starter BP-DL900
- Protection Features: OVP (Over Voltage Protection), OCP (Over Current Protection), SCP (Short Circuit Protection)
- Special Feature: Travel-friendly design
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.