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