Original hybrid battery bus bars quickly corrode, leading to electrical failure. This Dorman OE FIX battery pack is upgraded with nickel-plated bus bars and soldered safety disconnect terminals to prevent corrosion and ensure conductivity. Product Features:Upgraded replacement - this remanufactured hybrid battery pack includes nickel-plated bus bars and corrosion-resistant terminals for increased reliabilityOptimized cell-retention - proprietary software uses multi-dimensional grading process to select battery cells that will perform ideally togetherThoroughly restored - all components thorough cleaned or replaced with new components to ensure operationRigorously tested - packs undergo multiple stringent validation gateways, including on-vehicle tests using EPA performance standards