OER Parts offers a wide selection of Battery Accessories for your 1971 Plymouth Duster. OER Parts offers 1971 Plymouth Duster Battery Tender, 1971 Plymouth Duster Battery Managment System, 1971 Plymouth Duster Dual Battery System Controller Set, and 1971 Plymouth Duster Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller