The terrible customer service with this company, seems to be a trend with them. I also purchased a Champion Generator from them. I spent $850 on a 3100, and there was no mention that it was a REBUILT, other than a RB, after the mention of the brand..How the hell are you sup3to know what RB means..? I have contacted my attorney, and will persue to get all of my money back, as it never worked at all. Really crappy way it was shipped, as well. Poorly wrapped in bubble wrap and it had oil everywhere. Definitely not a professional job of shipping the thing. Had to replace the cheap spark plugs cause they were so dirty and covered in oil. Finally got it running, and it ran for 3 hours and never charged a thing. 3 calls to them and a few emails, and still no response. Going to call them today and inform them that if I don't get a response by the end of the week, my ATTORNEY WILL BE IN TOUCH with them..Terrible experience with this company..