When it comes to batteries, it’s a brave new world in a service bay. “The days of standard alternator output — it’s good if it is between XX.X and YY.Y volts — across all makes and models are over,” says Jim O’Hara, vice president of marketing for Clore Automotive Inc.

Gasoline Direct Injection (GDI) technology is not new, but technicians are beginning to see more of it as car manufacturers add more GDI-equipped vehicles to their product lines. Robert Bosch LLC says in 2015 37% of new vehicles will feature GDI technology. By 2020, 49% of all new vehicles will have GDI engines. Bosch projects it will have 56% OE market share in GDI technology in 2017.