+6 Champion 4000/3500 Watt Duel Fuel Generator Model 46514 ... The Champion 4000-starting-watt/3500-running-watt generator is a versatile, portable, gas-powered (or dual-fuel) unit designed for RVing, job sites, and home backups. Featuring a 196cc/224cc engine, it powers essentials like AC units and refrigerators, running for up to 12-14 hours at 50% load. Units often feature Cold Start technology, Volt Guard surge protection, and a ~68 dBA noise $300 OBO