Electric & Hybrid Vehicle Technology Expo comes to Novi, Michigan September 10-12, 2019 The Battery Show is the largest and most comprehensive trade event for the advanced battery manufacturing industry in North America, and Electric & Hybrid Vehicle Technology Expo is the only large-scale trade show exclusively dedicated to the drive train and power system in EVs and HEVs. Combined, they’re a one-of-a-kind event for battery manufacturing and vehicle electrification professionals.