The DEKA 8GU1 GEL 12V Battery has been designed as member of the Deka Dominator series to supply all your boat’s services requirements. An amazing clean option to run the house!!!!! • Longest deep cycle life • Ultimate trolling and accessory power performance • Superior protection against vibration and deep cycle damage • Better capacity protection during periods of infrequent use • Safer install and transport with no-spill design to prevent leaking acid • Dependable starting performance.