I found this on newegg.com does anyone think that this might work for a backup, i was thinking of hooking this up to my tractor or motorcycle to be used in case of a power outage.
http://www.newegg.com/Product/Product.aspx?Item=N82E16882021189
http://www.newegg.com/Product/Product.aspx?Item=N82E16882021189