I have a 2007 mazda 6 4l engine. The battery in the car was going bad and I had to replace it. I used the in store machine which came back showing my car takes an everstart max 35n. The battery I bought says everstart max 35 but shows no n. I asked the salesperson and he assured me that I had the correct battery.

The battery was installed but it is taller than the one removed and the bar wont reach to bolt in leaving the battery to slide a little. Did I purchase the wrong size battery?