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