What size battery do I need for my 2013 G37 Convertible? How many CCA should I look for? The owners manual doesn't have this information.

 

Any Group 35 with 650+ cca would suffice.

 

I did lots of research and ended up getting a battery from Costco last winter. It's been perfect so far, I believe I got one size larger which still fit. If you like, I can look later on what size I purchased after I get home later tonight?

 

Just make sure you tighten down the battery strap down bar correctly else you'll hear a rattle.

 

Go with a 24F.

 

Use search bar and look for battery size. I found when I needed one that many people found a good price on the recommended size at Home Depot (while it also has higher CCA than OEM)

 

I got an optima redtop for 140

 

Where you get from.?

 

Pepboys they price match. Btw interstate owns optima and last I checked costco batteries were made by interstate and they sell both along with price matching a nb d longer warranty