michaelhebert1986 I had the same problem with shutting down after 30 minutes while in Talladega..Put a fan under it and it kept running without a problem...So when I got home I took it to my guy that works on the generators and he said it was my batteries...I thought he was nuts..However I put two new batteries and never had a problem with it shutting down. It seems when the generator is trying to charge the batteries and they wont charge it overheats the sending unit that powers the batteries..I know that sounds weird but BAM it worked