Battery Panasonic or Duralast
I just replaced my OEM H5/LN2 group 47-sized battery with a Duralast Platinum H5-AGM Group Size H5/LN2 680CCA battery. After having my mechanic change the settings in the ECU from EFB to Fleece for battery technology, 60Ah for rated capacity and set the date of install for the last 8 digits of the serial number, all seems to be fine. It fits the OEM position and cover perfectly.
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.
The OE Panasonic battery in my WRX died roughly 12 minutes after I bought the car. It was the original, so it was 9ish years old. Impressive.
My MY2007 S2000 also came with Panasonic battery. I replaced it with Walmart battery in last summer (2015), So it ran for 8 years.
I tried my spare key, and the first time I used it, I got a weak battery warning. I never had that warning on the key I regularly use. I replaced both batteries, and still had the problem.
I had the misfortune of having a dead battery today... I've had the Duralast battery in my car for less than a year... I opted for the $70 Duralast - it sucks... Piece of shiznit.
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