Then John talks about RV Power Sytems. First tthe 120 volt RV power system and some troubleshooting tips. He covers RV Park power, AC Power circuits, Converters, circuit breakers, common campground electrical problems, electrical surges and surge protectors, inverters, and generators.
Next he goes into the 12 volt DC power systems. It is all about batteries, fuses, battery charging, converter/chargers, inverter/chargers, generators, solar panels, and wind power.