How Much Does an RV Inverter Cost? The cost of an RV inverter varies significantly depending on its wattage, type (pure sine wave vs. modified sine wave), features, and brand, generally ranging from $50 to over $2,000. There are several types of inverters available in the market, each with its own set of. WF-9865 65 Amp RV Power Converter - Deck Mount Three-Stage Power Converter/Charger Replacement for 9800 Series,Rv Converter 65 amp for Camper RV Trailer. Top-rated RV inverters for boondocking, off-grid camping, and full-time RV living. Instead of running a noisy, gas-guzzling generator to make morning coffee or watch TV, a quality inverter silently converts your. This Pure Sine Wave Inverter is a combination of an inverter, battery charger and AC auto-transfer switch.