I agree with Jerry,but it is also important to stay several days and just use every system,even if you can plug up use the generator for several hours,all AC units,Webasto,audio+video,take it out for a 100+ mile trip,the more you touch it the better you will understand it.In a Liberty,You need to read the owners manual and understand what to do when the Allen Bradley might need to be reset,how to by-pass the inverters,how to reduce the inverter charging in case you hook up to 30 amps,ETC,ETC.