The existing battery in my Vintage Speedster was more than five years old , It always started the car but I had to trickle charge it if the car sat inactive for more than two weeks. For obvious reasons i replaced it this week with a Duralast Gold. It has i belive 650 cold cranking amps, a five year warrantee- three years free and two prorated. What a difference-the car starts instantly and roars to life. it was the best I could find at the time- heavy to help hold down the front end with the spare tire on top and priced fairly-there are cheaper batteries but this fits my desires.
Joel