The 120v inverter is powered off the traction battery I read on the Mitsui worldwide site. Yesterday I started PHEV ( ready on the dash), selected "charge" mode on the console, turned on ac inverter and ran my skilsaw. Later I charged 2 deep cycle batteries with a normal 120v charger drawing 8-10 amps also. Car had 64 km range. When it went down to 61 the gas engine fired itself up and topped up the drive battery to 64km... then it shut the gas engine down. That repeated a few times, running the engine 3 or 4 minutes then off. Can use it as a generator as needed and it does self maintain!!!