J. T. Battenberg IIIJ. T. Battenberg III was the chairman, CEO, and President of Delphi Corporation from 1998 to 2005.Early life and careerBattenberg obtained a Bachelor of Science from Kettering University in 1966 and a Master of Business Administration from Columbia Business School in 1969. He joined General Motors in 1961 and later took over management of Delphi, a GM spinoff.