I have had good results so far, 2 yrs and no trouble. I had an interstate go bad in the first year I had the boat. I really like interstates fro the truck/car and was surprised when the one in the boat went that quick. One battery with the little kicker runs the riggers, sounders, lights and radios with no problem. I liked the smaller/lighter for same capacity. These new ones have been good, but expensive. They are rounded, sealed and supposedly about vibration proof, when you run them down they charge quick, and sitting doesn't hurt them (according to the literature).