Battery OEM Subaru or Duralast

I've also had great luck with AutoZone's Duralast Gold/Platinum batteries and they have better warranty than most others as well.

My last battery was a Duralast Gold and it lasted 7 years.

Picked up a Duralast Gold from Autozone back in July for my GLI. $155 after returning the OEM battery for the core refund.

I had my battery moment on my 2011 Outback, I bought a Duralast Gold 640 CCA and it's been working fine ever since.

Just replaced a Duralast (Autozone?) yesterday in my Silverado. It was from 11/09. It had a pretty good run in several vehicles of mine.

So we bought a new 550CCA battery and installed it and it started right up. When I pulled the 18 month old OEM battery out, I was shocked at the CCA rating: 356. 356!!!! That's insane.

Any tips or advice before I fork out money for a new battery? I have some anxiety hoping its not the alternator dying, or less likely the starter. All things point to a slowly dying battery but I want a second opinion.

I usually run the Duralasts just because AutoZone is everywhere and I usually get it replaced twice before the warranty runs out - Phoenix is brutal on batteries.

I've gone through two VW batteries in 32K miles under three years. They suck. Just replaced it with a Duralast Gold from Autozone which has a 3 year full replacement warranty and 5 year prorated.

we see many 2 year old Duralast batteries that have failed.