
The biggest and brightest LED ever

Smart Interface Operation
This 2.7-inch LED screen is the biggest and brightest ever on a car battery charger. There is no technical knowledge required, and no complicated modes! Charging information, battery voltage, charging status and mode, incorrect operation warnings, and more, can be viewed clearly with this easy-to-read LED display.
Bring Dead Batteries To Life

After detecting your dead battery, this charge will automatically turn on “Loading Mode” and bring your dead battery back to life.
Sigma 1 Is Your Trusted Partner

Safe for Every HULKMAN User
Avoid injuries and damage—even when you keep the charger plugged in—with protection against high temperatures, short circuits, excessive currents, over-voltage, reverse-polarity protection, and sparks. This charger has also been awarded the ETL mark—a safety certification in North America.

On-the-job dependability
With high-grade, drop-resistant, and dust-tight materials, EMC and EMS technology, and the ability to operate Sigma 1 in a fully electric environment without interfering with other electronic devices or being interfered with, this charger is incredibly durable and reliable for any circumstances.

Smart Feature
Sigma 1 has been constructed with next-level intelligence, forming a unique 9-step charging technology and the “Super Repair” feature, enabling it to automatically run diagnostics, clear sulfation buildup, and always ensure a full charge with trickle/float charging, extending your battery lifespan.

The biggest and brightest LED ever

Smart Interface Operation
This 2.7-inch LED screen is the biggest and brightest ever on a car battery charger. There is no technical knowledge required, and no complicated modes! Charging information, battery voltage, charging status and mode, incorrect operation warnings, and more, can be viewed clearly with this easy-to-read LED display.
Bring Dead Batteries To Life

After detecting your dead battery, this charge will automatically turn on “Loading Mode” and bring your dead battery back to life.
Sigma 1 Is Your Trusted Partner

Safe for Every HULKMAN User
Avoid injuries and damage—even when you keep the charger plugged in—with protection against high temperatures, short circuits, excessive currents, over-voltage, reverse-polarity protection, and sparks. This charger has also been awarded the ETL mark—a safety certification in North America.

On-the-job dependability
With high-grade, drop-resistant, and dust-tight materials, EMC and EMS technology, and the ability to operate Sigma 1 in a fully electric environment without interfering with other electronic devices or being interfered with, this charger is incredibly durable and reliable for any circumstances.

Smart Feature
Sigma 1 has been constructed with next-level intelligence, forming a unique 9-step charging technology and the “Super Repair” feature, enabling it to automatically run diagnostics, clear sulfation buildup, and always ensure a full charge with trickle/float charging, extending your battery lifespan.















