OER Parts offers a wide selection of Battery Accessories for your 1957 DeSoto Firesweep. OER Parts offers 1957 DeSoto Firesweep Battery Tender, 1957 DeSoto Firesweep Battery Managment System, 1957 DeSoto Firesweep Dual Battery System Controller Set, and 1957 DeSoto Firesweep Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller