Most Class A motorhomes today have a manufacture installed device called a converter/inverter/charger. This device receives power from shore power, a generator, the engine alternator and storage batteries. If there is no shore power, the engine is not running and the generator is not working, the coach will get power to run 12 volt lighting and 12 volt systems from the deep cycle coach batteries. The inverter part of the device will also use some of the 12 volt battery power to make 120 volt alternating current (AC) for TVs, entertainment system and some outlets. When hooked up to shore power, the coach ahs 120 volts AC for all the AC appliances like air conditioners, washer/dryers, TVs and microwave; also the inverter stops working and the converter changes 120 volt AC power into 12 volt direct current(DC)for 12 volt lighting, vent fans and other 12 volt appliances and the charger part of the device replenishes the batteries. (The batteries can also be replenished by the engine alternator, the generator and solar panels,if any).
