This Charger is a primary switch mode battery charger with pulse maintenance, representing state-of-the-art technology for battery charging. Features multiple charging modes, as well as a unique 8-step charging curve. Taken together these refined and new technologies allow the Multi US 7002 to move far beyond the capabilities of other 12V chargers, even to the point of determining whether a battery can hold the charge given, and in the process ensure that each of your lead-acid vehicle batteries gets the best possible care.