1. Introduction
This instruction manual provides essential information for the safe and efficient use of your new Generic AC DC Adapter Charger. This adapter is specifically designed as a compatible replacement power supply for the Duralast GL055B 800A Jump Starter. Please read this manual thoroughly before use and retain it for future reference.

Image 1.1: The Generic AC DC Adapter Charger. This image displays the compact black adapter with its input specifications printed on the front and a standard two-prong plug.
The adapter features include over voltage output protection, over current output protection, and short circuit output protection, ensuring a safe charging process for your device.

Image 1.2: Key features of the AC DC Adapter. This image highlights the adapter's premium quality components, multipurpose design, stable output, and built-in safety protections.
2. Setup
- Unpack the Adapter: Carefully remove the AC DC adapter from its packaging.
- Verify Compatibility: Ensure that your jump starter is a Duralast GL055B model. This adapter is designed specifically for this model.
- Inspect for Damage: Before use, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
3. Operation
Follow these steps to charge your Duralast GL055B Jump Starter:
- Connect to Jump Starter: Insert the barrel connector end of the AC DC adapter into the charging port of your Duralast GL055B Jump Starter.
- Connect to Power Outlet: Plug the two-prong AC plug of the adapter into a standard 100V-240V AC wall outlet.
- Charging Indicator: Refer to your Duralast GL055B Jump Starter's manual for information on its charging indicator lights. The adapter itself may have an LED light to indicate power, as shown in Image 3.1.
- Charging Time: Allow sufficient time for your jump starter to fully charge. Consult your jump starter's manual for recommended charging durations.
- Disconnect: Once charging is complete, first unplug the adapter from the wall outlet, then disconnect the barrel connector from the jump starter.

Image 3.1: Adapter cable length and LED indicator. This image illustrates the 5-foot cable length of the adapter and mentions the presence of an LED light, typically indicating power or charging status.
Important Note:
Rechargeable batteries have a limited lifespan, typically 1 to 3 years. If your Duralast GL055B Jump Starter's battery is old or dead, it may not accept a charge, which is not an issue with the charger itself. If you suspect a battery problem, use a voltmeter to test the battery's health or consult the jump starter's manufacturer.
4. Maintenance
- Cleaning: Keep the adapter clean and free from dust. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Storage: Store the adapter in a cool, dry place when not in use. Avoid extreme temperatures and direct sunlight.
- Cable Care: Do not bend or crimp the cable excessively. Avoid placing heavy objects on the cable.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Jump starter not charging. | Adapter not properly connected. Wall outlet not active. Jump starter battery is old/dead. | Ensure both ends of the adapter are securely connected. Test the wall outlet with another device. As noted in Section 3, an old or dead battery will not accept a charge. Test the battery with a voltmeter or consult the jump starter's manufacturer. |
| Adapter feels unusually hot. | Overload or internal fault. | Immediately unplug the adapter from the wall and the jump starter. Do not use if it continues to overheat. Contact support if available. |
6. Specifications
- Input: 100V - 240V AC, 50/60Hz
- Output: 2 Amps (specific voltage not provided, but compatible with Duralast GL055B)
- Cable Length: Approximately 5 feet
- Connector Type: Barrel connector
- Protections: Over Voltage Output Protection, Over Current Output Protection, Short Circuit Output Protection
- Product Dimensions: 4 x 3 x 2 inches
- Item Weight: 4 ounces
- Included Components: 1 x AC adapter
- Compatible Devices: Duralast GL055B (fit This Model Only)
7. Warranty and Support
Specific warranty information for this Generic AC DC Adapter Charger is not provided in the product details. Please refer to the seller's return policy or contact the seller directly for any warranty-related inquiries or technical support.
For general inquiries or further assistance, please contact the seller through the platform where the purchase was made.
