OER Parts offers a wide selection of Battery Accessories for your 1939 Chevrolet JA Master Deluxe. OER Parts offers 1939 Chevrolet JA Master Deluxe Battery Tender, 1939 Chevrolet JA Master Deluxe Battery Managment System, 1939 Chevrolet JA Master Deluxe Dual Battery System Controller Set, and 1939 Chevrolet JA Master Deluxe Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller