It's time to replace my battery in my 2013 Corolla S. Last few starts have been weaker and weaker. I've use group 35 Duralast Golds in the past but it now looks like they have changed from 640 CCA to around 575 CCA. There seems to be some good sales going right now with AAP 20% and Pepboys is having a 25% off battery coupon. I was planning on going to Costco for a Kirkland Signature but it sounds like those are phased out. Recommendations? SoCal weather so it fairly gets below 30.
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