OER Parts offers a wide selection of Battery Accessories for your 2012 Cadillac Escalade ESV. OER Parts offers 2012 Cadillac Escalade ESV Battery Tender, 2012 Cadillac Escalade ESV Battery Managment System, 2012 Cadillac Escalade ESV Dual Battery System Controller Set, and 2012 Cadillac Escalade ESV Battery Relocation Set. Battery Mat Battery Topper Battery Terminal Protectors Battery Post Cleaning Brush Battery Terminal Puller