Battery Panasonic or Duracell

I got an already fully charged duracell battery at my local Batteries and Bulbs location in California. Works like a charm just needed to get top posts for it to work in the i3.

Replaced with: Duracell Ultra Platinum AGM Battery SLI49AGM

Standard sealed lead acid batteries from duracell will work great for several years.

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.

Original factory Panasonic battery in my RX-8 lasted 7 years. The 'premium' Exide I replaced it with is on it's way out now after only 4 years.

When I bought my 2006 4Runner V8 three weeks ago, it had the original Panasonic battery on it's last leg and I had it replaced with a Toyota True Start battery. The 4Runner only had 109,600 miles when we had that battery replaced.

So ever since I put subwoofers in my car they seem to be killing my batteries. My original battery lasted about 2 years (car was barely used for these 2 years), battery after that lasted a year (replaced last summer), and now it seems as if my current battery is going. I wanted to grab food before going to work yesterday so I got some food at Mcdonalds and sat in my car for 20-30 mins eating and listening to music. I went to fill my car up with gas after work (gas station not even a mile away) and the car barely started, normally it turns over very quickly, you could tell the car was REALLY struggling due to battery (everything dimmed as well). This was at night so my headlights were on while I was filling up. At the beginning of summer I went to a drive-in and was able to watch an entire movie without my battery dying. The battery is a Duracell with 725 CCA and 890 CA @ 32F