OER Parts offers a wide selection of Battery Accessories for your 1990 Dodge Omni. OER Parts offers 1990 Dodge Omni Battery Tender, 1990 Dodge Omni Battery Managment System, 1990 Dodge Omni Dual Battery System Controller Set, and 1990 Dodge Omni Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller