Note:Due to different versions, when you connect the clamps to the car battery reversely, the screen will either shows an “Error Code 1” or “Error Code“.
This indicates that the ”+” and “-“ poles of the battery clamps are reversed in the car.
HULKMAN products feature multiple advanced safety technologies, including reverse-polarity protection. It can detect a reverse attachment to your car battery automatically. If you reverse the polarity of the clamps, it will display the “Error Code 1/Error Code ''” message as the above picture revealed.
If the screen shows “Error Code 1,” please follow these 3 steps:
Step 1: Take off and exchange the clamps. Recheck your car battery terminals: the red clamps connect to “+” and the black clamps to “-“;
Step 2: The screen will display the “READY” icon, following which you can go back to start your engine ignition.
Step 3: Remove the clamps from the car battery.
If you still require assistance, please contact us:
If you have checked the connection, there is no Error Code on the screen, and you still can’t start your vehicle with our product at over 80% battery power, please contact our customer support at firstname.lastname@example.org with the following information:
- Order number
- The serial number of your product (Where can I find the serial number?)
- Your vehicle model
- Any images or videos for proof of the issue
Our agent will help you troubleshoot your issues, with the guarantee of an exemplary experience.