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When were commercial batteries (AA, AAA, etc.) invented?

Best Answers

The first American Standards Association (predecessor to ANSI) standard C18 appeared in 1928. It listed cell sizes using a letter code, roughly in order of size from smallest (A) to larger types. The F cell was introduced in 1896 for lanterns; later used for radios; only available in nickel-cadmium today. read more

Image Answers

Energizer Industrial Bundle Pack - AA, AAA, C, D & 9V ...
Source: batterymart.com

Further Research

Battery size history
www.candlepowerforums.com

Electric Battery History
www.ideafinder.com

When Was the Battery Invented?
batteryuniversity.com