The key to the Throttlex MX30L is the AGM technology and the highly porous microfiber separators which completely absorb and trap the acid making this battery spill and leak proof while extending service life. It is factory fresh and guaranteed to fit your Harley. The MX30L is one of the most popular batteries ThrottleX offers and an all time customer favorite that has made its mark within the Harley Davidson riding family. With ThrottleX just buy and ride. With confidence!