PowerPulse is not a charger. It's a performance device designed to help batteries charge faster and provide maximum performance and power. This patented unit uses our revolutionary ReNew-IT Pulse Technology™ to safely prevent the main cause of battery problems and failure: sulfation buildup on lead-acid battery plates. Used extensively by the consumers and the U.S. Military worldwide for almost ten years, this technology has been scientifically proven by two major universities to make batteries work harder and last longer than you ever thought possible.