OER Parts offers a wide selection of Battery Accessories for your 1979 Pontiac Grand Prix. OER Parts offers 1979 Pontiac Grand Prix Battery Tender, 1979 Pontiac Grand Prix Battery Managment System, 1979 Pontiac Grand Prix Dual Battery System Controller Set, and 1979 Pontiac Grand Prix Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller