OER Parts offers a wide selection of Battery Accessories for your 1978 Plymouth Sapporo. OER Parts offers 1978 Plymouth Sapporo Battery Tender, 1978 Plymouth Sapporo Battery Managment System, 1978 Plymouth Sapporo Dual Battery System Controller Set, and 1978 Plymouth Sapporo Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller