EverStart Maxx 51R Automotive Battery_Size 51R (3 years) 500 cold_ 85-minute

It is a brand-new battery manufactured in June of this year; I only used it once to move my car about (20 miles), and it hasn't been used since. I actually replaced it because I had bought an identical one for $150 eight months ago, but I had some bad luck: a mechanical issue kept my vehicle out of commission for three months. Last week, after sitting idle for those three months, I tried using the battery to move another car, but it didn't work. I went to the store to claim the warranty, and they gave me this new battery. I was able to move my car, but I don't need it anymore. The original price is $150. I'm only asking $70