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The 12 Volt Bible is a complete introduction to the 12-volt electrical systems used on small boats to power everything from reading lights to bilge pumps. Written for boaters who are not skilled electricians, it explains how 12-volt systems work and how to maintain them in a good operating condition, how to recognise an electrical problem, and how to troubleshoot that problem. Each chapter covers a different area of boat electrics including the basic theory of electricity, electrical circuits, the battery, wiring, the controls, transducers, recharging the battery, and troubleshooting.