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Author Topic:   Optima Battery Ratings
lakeman posted 05-02-2006 07:40 AM ET (US)   Profile for lakeman   Send Email to lakeman  
I just looked at the Optima batteries and I could not find one with 1000 MCA which is needed to run a Mercury OptiMax. Did I look too quickly?
prm1177 posted 05-02-2006 10:39 AM ET (US)     Profile for prm1177  Send Email to prm1177     
There are two candidates. The 34M has an MCA of 1000 and a CCA of 800 and the D31M has an MCA of 1125 and a CCA of 900. My Opti 135 service manual calls for a minimum CCA of 750 and MCA of 1000, so either one would do the job.
prm1177 posted 05-02-2006 10:41 AM ET (US)     Profile for prm1177  Send Email to prm1177     
Here's the site for the specs: product_info/marine/technical_specs.html

dcritch posted 05-02-2006 11:49 AM ET (US)     Profile for dcritch  Send Email to dcritch     
My 2004 90 OptiMax calls for 800/1000. I looked at the Optima "OptiMax approved" battery and decided to go with the Cabelas group 24 AGM. I wanted a dual purpose battery Which met or exceeded my OptiMax requirements.

montauk steve posted 05-02-2006 07:40 PM ET (US)     Profile for montauk steve  Send Email to montauk steve     
I just ordered the 1000M and the D900 from summit racing.

There is another place in florida that sells them at rock bottom prices.

hope that helps


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