Battery Question

Discussion in 'General Maintenance/Repair Questions' started by FYN409, Jul 13, 2010.

  1. FYN409

    FYN409 New Member

    Jul 16, 2007
    West Michigan
    88 Sorrento 25 Sundancer 26

    330 HP 7.4 L Mercrusier
    7.4L 330 HP
    I have 2 battery’s on the boat with a battery switch isolating them. I replaced one battery 2 years ago (deep cycle group 27) and now the other is in need of replacement. Question is do I replace it with a deep cycle, or a “marine starting battery” like it has now? What do you guys recommend, two deep cycles, or one deep, one “starting”?

    Typically when we stay on the boat we are in a slip with shore power, so at this point I am not in need of more amp hours.


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