OER Parts offers a wide selection of Battery Accessories for your 1973 Dodge Challenger. OER Parts offers 1973 Dodge Challenger Battery Tender, 1973 Dodge Challenger Battery Managment System, 1973 Dodge Challenger Dual Battery System Controller Set, and 1973 Dodge Challenger Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller