Duracell Inc. is an American manufacturer of alkaline batteries, specialty cells, and rechargeables; it is a wholly owned subsidiary of Berkshire Hathaway. The company has its origins in the 1920s, through the work of Samuel Ruben and Philip Mallory, and the formation of the P. R. Mallory Company.

Berkshire Hathaway Inc. is an American multinational conglomerate holding company headquartered in Omaha, Nebraska, United States. Founded in 1839 as a textile manufacturer, it underwent a drastic restructuring into a conglomerate starting in 1965 under the leadership of chairman and CEO Warren Buffett and vice chairman Charlie Munger.