I feel that the system is flawed.  I bought a battery in 2010 went to have it replaced in 2012 and he said I had a different battery in my truck, it wasn't.  He fought me and I  had to buy a new battery.  In 2014 I went to get a replacement, same thing said that it was a different from the one purchased in 2012, he fought me for a few then looked deeper and saw that I was correct.  so, I lost money on the first one and almost the second.  I wish their system would not fail me.