OER Parts offers a wide selection of Battery Accessories for your 2003 Chevrolet Tahoe. OER Parts offers 2003 Chevrolet Tahoe Battery Tender, 2003 Chevrolet Tahoe Battery Managment System, 2003 Chevrolet Tahoe Dual Battery System Controller Set, and 2003 Chevrolet Tahoe Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller