Battery Panasonic or OPTIMA

Agreed with others, weigh your usage and environment/climate into the equation. We will personally be replacing ours with a deep discharge battery like the Optima Yellow, since I've noticed that of recent we've been running a lot quick errands that involve one person running in while everyone else hangs out in the car with A/C on.

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.

I bought a red top used off craigslist over 3years ago and it's still great.

I just threw in a red top in the G60 and it did not fit well at all. The optima website mentioned some sort of adapters that were supposed to fit on the long edges of the battery to make it fit better under the battery holder, but I did not get any with my battery. I ended up shimming it to get it snug.

I've owned an optima before. Will never buy another one. I used one in my 4x4 to listen to music while camping, play it until the sub cuts out, get a jump, charge it and repeat. Ended up damaging the battery and it would never hold a charge and struggled to start the truck after a weekend of camping. Tossed it out after 2 years.

Optima is not what it used to be. Total and utter crap.

Every optima battery I have seen in customer vehicles (I'm an auto tech) goes to crap in about 6 months to a year. I think these types of batteries are more sensitive to low voltages. They also don't hold up at all during the freezing winter months.