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