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