The Champion Power Equipment 201317 2500-Watt Portable Inverter Generator with CO Shield® is ideal for camping, tailgating, powering items around the RV or providing backup for a few basics. This unit is not recommended for emergency home backup. Using gasoline, the 80cc Champion engine produces 2500 starting watts and 1850 running watts. When the 1.1-gallon tank of gasoline is full, this inverter will run up to 11.5 hours at 25% load.