OER Parts offers a wide selection of Battery Accessories for your 1981 Oldsmobile Omega. OER Parts offers 1981 Oldsmobile Omega Battery Tender, 1981 Oldsmobile Omega Battery Managment System, 1981 Oldsmobile Omega Dual Battery System Controller Set, and 1981 Oldsmobile Omega Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller