Sealed Maintenance Free Marine Starting Battery ideally suited for marine starting applications which require higher cranking (CCA's) within a sealed battery design. Patented liquid gas separators enhance the maintenance free characteristics of the battery by preventing electrolyte loss through a process of collection and return of electrolyte to the reservoir. Inbuilt ceramic disc flame arrestors protect against accidental battery explosion from external sparks and an inbuilt "Magic Eye" hydrometer enables visual checking of the battery state of charge. The added benefit of a Dual Terminal Configuration is available across the 24, 27 and 31 marine range.