I don't know the answer to your question, I'm sure any battery seller could tell you what size and CCA you need. You might even find the info at your local Walmart or of course a Google search could probably tell you.

That all said, I own a Ctek battery charger that has a 'recondition' cycle on it. They recommend to run it once a year or so. It hits the battery with jolts of electricity that help to shake the scale off the plates and extend battery life. Check it out on Kent Bergsma's videos.