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Get a 6v red top Optima and you'll never regret it. That's what my A has. I have 5 old Ford 8ns (tractors) and 3 of those are still six volt. I've replaced the standard 6v batteries numerous times and they NEVER hold up more than 3 years. Have now replaced them with 8v cause they fit into the battery trays better than the 6v Optima. Bottom line is if you have cold winter weather and plan to drive your A during that time....Optima is the way to go. Highest cranking 6v out there.