From John C. Payne, one of the foremost international authorities on marine electrical systems and electronics, comes an easy-to-understand yet thorough treatment of boat batteries and charging.Concise, compact, and illustrated for easy reference, Understanding Boat Batteries: 2nd Edition has been fully revised throughout. This guide offers a comprehensive coverage of the following major topics:Lithium, lead acid, AGM, and gel batteriesBattery ratings and selectionSafety and maintenanceInstallationCharging, including solar and windAlternators and regulators