No matter what the application...no matter what the power demand...Deka has the correct marine and RV battery for the rigorous demands typical of marine or long haul RV service. For pounding vibration due to heavy seas or bumpy backroads, long cranking due to stubborn engine starting, heavy house power and auxiliary loads, long hours and days of trolling without recharge, and even super-heavy demands of luxury yachts and commercial vessels...Deka DELIVERS. Available in starting, dual purpose or deep cycle Sea Mate absorbed glass mat (AGM); there's a Deka battery for every marine application. For over fifty years, Deka batteries have set the standard for the absolute highest quality and most reliable performance in the industry. And Deka batteries are all made in the U.S.A.