Our Autolite Sta-Ful batteries are authentic reproductions of the originals that use the original case and not just cover molds. These batteries are maintenance free , utilizing the latest AGM (absorbent glass mat) technology so they never require adding acid or water. The electrolyte is trapped in the seperators so the battery can't leak - even if the case is broken. The battery comes fully charged and ready for installation. This is not a generic battery inside a case ! This is a true AGM battery and Made in the USA.