OER Parts offers a wide selection of Battery Accessories for your 1956 DeSoto Firedome. OER Parts offers 1956 DeSoto Firedome Battery Tender, 1956 DeSoto Firedome Battery Managment System, 1956 DeSoto Firedome Dual Battery System Controller Set, and 1956 DeSoto Firedome Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller