OER Parts offers a wide selection of Battery Accessories for your 2002 Dodge Ram 3500. OER Parts offers 2002 Dodge Ram 3500 Battery Tender, 2002 Dodge Ram 3500 Battery Managment System, 2002 Dodge Ram 3500 Dual Battery System Controller Set, and 2002 Dodge Ram 3500 Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller