We used interstate batteries for a large fleet of commercial vehicles that stated to have a 2-year replacement after 2-3 months 2- of them kept not holding a charge for more than a few days when off we took them back and Keith Holley told us that there is no replacemnet and we have to buy new batteries and he will give us a small prorated discount I was very upset with Keith Holley horrble customer service and false warranties stay away from these guys!