EarthX ETX48E Eco-Friendly Lithium Motorcycle Battery with Built-in Battery Management System The ETX48E was designed an upgrade for the ETX36E and for custom choppers. Designed, engineered and assembled in the USA 2 year full coverage warranty (Not a prorated warranty that offers you the replacement at a discounted rate IF they dont void the warranty) Over discharge protection (#1 killer of all batteries and other brands do not protect against this and void the warranty) Terminal adapters are included with this battery if you have a front mount connection with the standard size of 6mm.