OER Parts offers a wide selection of Battery Accessories for your 1966 Buick Special. OER Parts offers 1966 Buick Special Battery Tender, 1966 Buick Special Battery Managment System, 1966 Buick Special Dual Battery System Controller Set, and 1966 Buick Special Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller