OER Parts offers a wide selection of Battery Accessories for your 1974 Oldsmobile Omega. OER Parts offers 1974 Oldsmobile Omega Battery Tender, 1974 Oldsmobile Omega Battery Managment System, 1974 Oldsmobile Omega Dual Battery System Controller Set, and 1974 Oldsmobile Omega Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller