XS Power Batteries was established in 2005. From the beginning we have had a technological edge over our competitors because of our strong commitment to product testing. As has been said in NASCAR, “all the BS stops at the dyno. ” The same is true for high performance batteries. We have an in-house testing lab, we employ the services of outside accredited labs, as well as outside experts to insure we bring you the best. Special Shipping Information: This item cannot be returned and has additional shipping restrictions MODEL NO - 1004