PRO Series Inverters. Performance inverters designed for RVs and boats. Designed for RV and marine electrical systems that already have a battery charger or generator installed, Xantrex PRO Inverters deliver modified sine wave power for small appliances, TVs, and other onboard electronics from a battery bank.. Description. The Xantrex PRO Series Inverters are the perfect complement to generators when shore power is unavailable, to quietly and efficiently provide household power when needed. The