OER Parts offers a wide selection of Battery Accessories for your 1996 Cadillac DeVille. OER Parts offers 1996 Cadillac DeVille Battery Tender, 1996 Cadillac DeVille Battery Managment System, 1996 Cadillac DeVille Dual Battery System Controller Set, and 1996 Cadillac DeVille Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller