NOT Interstate. Not sure why, but the last 3 Interstates I bought have lasted less than a year. The dump trailer just got a Fleet Farm RV battery last spring after the old one crapped out (6 years old) so I'm pretty happy with that. Had the same FF battery on my car trailer for the winch also about 6 years old that finally pooped out last spring, but I have not hit the winch button for about 3 years so I don't blame that thing one bit. Had one of those years where everything needs a battery, and everything else has gotten Duracell from Batteries Plus. Renegade and lawn mower have both had those for 5 years and often sit for 9 months at a time, they'll both start right now if I ask them to. They don't have a reasonable deep cycle though, which is why I use the Fleet brand