Uncerstanding Boat Batteries and Battery Charging by John C. Payne From John C. Payne, one of the foremost international authorities on marine electrical systems and electronics, comes this easy-to-understand yet thorough treatment of technical issues facing every boat owner, whether sail or power. Concise, compact, and fully illustrated for easy reference, Understanding Boat Batteries and Battery Charging covers the following major topics such as lead acid batteries, AGM batteries, gel batteries, battery ratings and selection, safety, installation, and maintenance, charging, alternators, and regulators, and more.