Battery eliminator

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A battery eliminator is a device powered by an electrical source other than a battery, which then converts the source to a DC voltage that may be used by a second device originally designed to be powered by batteries.

A battery eliminator does away with the need to replace batteries but may remove the advantage of portability. A battery eliminator is also effective in replacing obsolete battery designs.

Probably one of the earliest commercialization of battery eliminators was on September 25, 1928, when Paul Galvin and his brother Joseph E. Galvin opened the Galvin Manufacturing Corporation.

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