Interstate Optima SC31DM Blue Top Group 31 Deep Cycle Battery

INTER SC31DM

Dual purpose, but specially adapted for deep cycling, an Optima BlueTop in your boat or RV means more running time, faster recharges, and up to 3 times the cycle life of a traditional battery. 
BlueTop batteries feature both SAE Automotive posts and 5/16" threaded studs for easy installation in your boat or RV. It is ideal for powering heavy electrical loads including boats with GPS, pumps, fish finders, etc. Also trucks with winches, cars with high-demand audio systems, commercial trucks, etc.