I purchased and picked up a new 5th wheel in Yakima Washington in April 08 that had an Interstate battery in it. While in the parking lot t of the manufacturer the battery shorted and literally overheated. It was replaced without question. The replacement battery quit in Feb 09. Battery was properly maintained, fluid levels checked and the 5th wheel was lived in for the majority of the 10 months. Looking to buy a battery ? My advice is dont buy Interstate! read full review »