AD-X2 was an additive purported to extend lead-acid automotive battery life, marketed by California bulldozer operator Jess M. Ritchie in the late 1940s and early 1950s.
AD-X2 was an additive claimed to prolong lead-acid automotive battery lifespan, promoted by California bulldozer operator Jess M. Ritchie in the late 1940s and early 1950s.