I buy car batteries at Walmart anymore. They sell a lot of batteries, so the odds are they won't be old. And there is no hassle getting the warranty honored. And they are cheaper.I don't know how old that battery was but I wouldn't buy a car battery that had set on the shelf since January. You need to buy a car batteries at a place that sells a lot of batteries so you always get a new battery. A 6-month-old battery is not a new battery
http://carbatteryhelp.com/what-you-should-know-about-buying-a-car-battery/#.YYqhYVOIa8M