Why run refer on inverter? Doesn't yours have a 12v selection? Mine is 3 way, 12v 120v gas. I have always run the refer on 12v while running down the road and never had a battery low charge issue, unless I stop someplace for a few hours and forget to switch it to gas. The Lance has a heavy charge wire from the factory. Pls repeort on warm start. How long to cold compared to plugging in at home to get it cold. Do you know...when on 120v is it a different heater sustem than the 12v system...if it is that could be a substansial difference in cooling faster...interesting...wish I knew more about all the refer stuff.