OER Parts offers a wide selection of Battery Accessories for your 1973 Dodge CB300. OER Parts offers 1973 Dodge CB300 Battery Tender, 1973 Dodge CB300 Battery Managment System, 1973 Dodge CB300 Dual Battery System Controller Set, and 1973 Dodge CB300 Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller