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  1. #1
    Join Date
    Mar 2010
    Location
    Arkansas
    Posts
    2,441

    Default Batteries - What does "group" mean

    Now time for Battery 101 ...

    With all this battery talk. What exactly are we looking at? What are the different sizes and "groups" we should be looking at? Crank and Accessory?
    2006 Supra 24SSV

  2. #2
    Join Date
    May 2009
    Location
    Dallas, TX
    Posts
    880

    Default

    'Group' means a size classification. However, its a little tricky. With a Group 24, 27, 29, 31, etc. the capacity gets progressively larger. A Group 34, Optima for example, is actually smaller than a Group 24. The Group 34 will fit a Group 24 case with lid but since it is not as tall it gets to be more work to fit it into a Group 24 tray and bracket. Factory Moomba uses Group 24 provisions.
    Use the 'Group' for a reference to mounting. A Group 31 is still a manageable size and weight. Batteries with greater amp/hour capacity are generally larger but definitely heavier. Focus on the maximum amp/hours.

    David
    Earmark Marine

  3. #3
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    Quote Originally Posted by KG's Supra24 View Post
    Now time for Battery 101 ...

    With all this battery talk. What exactly are we looking at? What are the different sizes and "groups" we should be looking at? Crank and Accessory?
    The group refers to the physical size of the battery. Best bang for the buck is the Group 27 marine battery at costco. It's rated at 115 amp-hours and cost $69 each. You can spend a whole lot more money for batteries and not get much more performance.
    Al

    2006 Mobius LSV

  4. #4
    Join Date
    Jan 2010
    Location
    North Texas
    Posts
    1,816

    Default

    This build is going to be the death of you an I.

  5. #5
    Join Date
    Mar 2010
    Location
    Arkansas
    Posts
    2,441

    Default

    Quote Originally Posted by dusty2221 View Post
    This build is going to be the death of you an I.
    So I'm pretty sure we are going to need that third battery for the trolling motor.
    2006 Supra 24SSV

  6. #6
    Join Date
    Jun 2008
    Location
    De Pere WI
    Posts
    4,102

    Default

    kg, only if you have the optional hotshoe for the troller. if it's hand-operated, you're golden
    '06 Supra Launch 20SSV-gone but never forgotten

  7. #7
    Join Date
    Apr 2008
    Location
    California
    Posts
    2,840

    Default

    You two on overload yet?
    2007 Mobius LSV

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