1. Introduction
This instruction manual provides essential information for the safe and effective use of your Dysead AC/DC Adapter. This adapter is designed to provide power for compatible devices, specifically MacTools MT5145 and MT5120 12 Volt Jump Starters. Please read this manual thoroughly before using the product and retain it for future reference.
The adapter features built-in safety protections including over-current, over-voltage, over-temperature, and short-circuit protection to ensure reliable operation.
2. Product Overview
The Dysead AC/DC Adapter is a compact and portable power supply unit. It converts standard AC wall power to the DC voltage required by your compatible jump starter.

Figure 2.1: Front view of the Dysead AC/DC Adapter, showing the two-prong plug and the output cable.

Figure 2.2: The AC/DC adapter highlighting its built-in safety features: short circuit protection, over-current protection, over-voltage protection, environmental friendliness, and over-temperature protection.
3. Setup Instructions
- Unpack the Adapter: Carefully remove the AC/DC adapter from its packaging. Inspect it for any signs of damage.
- Identify Components: The package includes one AC/DC adapter. Ensure you have the adapter with its integrated power cord and DC output connector.
- Connect to Device: Insert the DC output connector of the adapter into the designated power input port on your MacTools MT5145 or MT5120 12 Volt Jump Starter. Ensure a secure connection.
- Connect to Power Outlet: Plug the AC input prongs of the adapter into a standard wall power outlet (AC 100-240V, 50/60Hz).

Figure 3.1: The AC/DC adapter connected to a power strip, illustrating proper connection to an AC outlet.
4. Operating Instructions
Once properly connected, the adapter will begin supplying power to your jump starter. The operation is automatic. Monitor your jump starter's indicator lights (if any) to confirm it is receiving power or charging.
- Always ensure the adapter is securely connected to both the power outlet and the jump starter.
- Do not use the adapter if the cable or connector is damaged.
- Disconnect the adapter from the power outlet when not in use for extended periods.
5. Maintenance
To ensure the longevity and proper functioning of your AC/DC adapter, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the adapter. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or crimping the cable excessively. Do not place heavy objects on the cable.
- Inspection: Periodically inspect the adapter and cable for any signs of wear, cuts, or damage. Discontinue use if damage is found.

Figure 5.1: The adapter cable demonstrating its flexibility, emphasizing the importance of proper cable handling.
6. Troubleshooting
If you encounter issues with your Dysead AC/DC Adapter, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output from adapter. |
|
|
| Jump starter not charging/powering on. |
|
|
7. Specifications
- Brand: Dysead
- Input: AC 100-240V, 50/60Hz (Standard wall power)
- Output Voltage: 12 Volts (12V - 13.5V Class 2 Power Supply)
- Compatibility: MacTools MT5145, MT5120 12 Volt Jumpstarters, Portable Power 1700
- Safety Features: Over-current Protection (OCP), Over-voltage Protection (OVP), Over-temperature Protection (OTP), Short Circuit Protection (SCP)
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the retailer where the product was acquired. Keep your purchase receipt as proof of purchase.
For general inquiries, you may also visit the Dysead brand page on Amazon.