I'm replace both of my batteries (starting and deep cycle). I have a 1992 5.7L Mercuiuser (carborated). I have battery group 24. <br />A chart that Don provided specifies a minimum 375cca 475mca and 90 ah for my engine starting battery. Do I need to meet all of these mimimums or just one of them? Am I correct that the higher the cca rating the better? So long as its a 12V marine battery (size 24) is there any risk that what I buy is too powerful? I don't want to blow something out. I'm considering one that is 700 cca but I'm not sure about the amp hours.<br />Thanks
