I purchased a Diehard battery for $323.99, with delivery and installation it came out to $376.04. The tech came out and instead of installing the battery I paid for, installed an FVP battery that I found on the FVP website for $150. A little less than a full year later, I wasn't able to start my car and when taking it to get tested found out the battery was dead. I contacted 1-800-battery and was told I needed to pay $50 for them to send someone out and an additional $100 deposit. If the battery is found faulty then I get $50 of my deposit back, so at a minimum I'd have to pay another $100 for the $376 battery that didn't even last a year, about $500 for a $150 battery! Very mediocre product and even worse service. Avoid at all cost!