A converter is standard equipment on most RVs… certainly modern RVs. Connected to a campground power pedistal or your RV generator is running the converter it changes 120 Volt AC power to 12 Volt DC and supplies power to the RV’s 12v circuits and charges the RV batteries. An inverter does the inverse.
Inverters take 12VDC from the batteries and change it to 120VAC. Depending on the wattage rating of the inverter most 120 Volt AC electric items may be operated without plugging in to shore power or running a generator. Although many RVs now come equipted with inverters they are not standard equipment so, if you want one, be sure you specifiy that if you are ordering an RV from the factory. Of course you can always have one installed.
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