Book excerpt: Motorboat Electrical and Electronics Manual covers all inboard engine boats, from 20' to 120', coastal, inshore, and blue-water vessels. This complete guide to the electrical systems and the electronics for large and small pleasure boats and workboats is a must for all builders, owners and operators, whether they are concerned with new boats or older boats and their maintenance and upgrading. Topics cover everything from diesel engines to refrigeration, and lightning protection to batteries and metal corrosion.