Mercruiser 3.0 - what battery to buy?

cosmos303

Recruit
Joined
Sep 13, 2009
Messages
3
My owner's manual says "Minimum 375 cca/475 mca/90 Ah". I'm having a time finding a 90 Ah rating in a size 24 battery. Is the 90 Ah rating critical? West Marine has a battery on sale (79.99) that's a group 24, 65 Ah, 685 MCA. Would that be sufficient?
Thanks.
 

Robertpel9

Petty Officer 1st Class
Joined
Apr 20, 2008
Messages
265
Re: Mercruiser 3.0 - what battery to buy?

Autozone HAS 700 cca (Greater than 800 MCA) Marine Starting Batteries for $69.99 - The Duralast brand is a good one that I have had much success with and your engine will fire right up for years to come
 

cosmos303

Recruit
Joined
Sep 13, 2009
Messages
3
Re: Mercruiser 3.0 - what battery to buy?

Thanks for that good info. Just checked out that battery on their website. Is their any advantage going with a maintenance-free battery as opposed to one with those removable caps?
Thanks again.
 

cosmos303

Recruit
Joined
Sep 13, 2009
Messages
3
Re: Mercruiser 3.0 - what battery to buy?

Robertpel
Thanks for the helpful advice. I went to Auto Zone today and bought the battery you recommended. Thanks again.
 
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