Key features

• •Note: It's a battery maintainer/ trickle charger rather than a jump starter.
• •[The Newest Arrival of 2022]: With a new industrial design that is more compact, more attractive, and simpler to use than your average car battery charger, Sigma 1 stands out from the crowd. Best of all, it is not only a battery charger, but also a battery maintainer, trickel/floating charger, and battery desulfator. Combined with its pure copper clamp, Sigma 1 offers customers the best charging experience ever.
• •[Smartest Charger Ever]: HULKMAN's smartest car battery charger yet, the Sigma 1 is built with next-level intelligence. Using its nine-step charging technology, Sigma 1 can now maintain your battery overnight or for an even longer period, with zero attention needed and complete dependability, creating a totally hands-free charging experience.
• •[Read With Ease]: Once you plug in and attach the battery, a huge 2.7-inch LED screen intuitively indicates the battery level, voltage, and charging mode. Simply select a charging mode and it will begin delivering the power to your battery, making your charge easier and better than ever before.
• •[Save Dead Batteries]: If your battery has died, you can now charge dead batteries with our "Advanced Loading Mode," a scientific charging process that delivers significant current power through qualification, soft start, and pulse mode, as well as recondition and bulk stages, to stimulate dead batteries back to life.
• •[One For All]: This charger is compatible with either 6V or 12V sealed lead-acid, and 12V lithium-ion batteries, including deep-cycle, AGM, lifepo4, flooded, gel, wet, maintenance-free, EFB, and calcium batteries.