Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

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Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Hearing Aid Batteries

Eveready 413E Hearing Aid "B" Battery

This Eveready 30 volt Mini-Max hearing aid "B" battery was used mainly in the larger 1-piece vacuum tube hearing aids in the late 1940s and early 1950s.

It weighed 1.4 oz., and measured 2⅜" by 1" by ⅝".

Pictures of both an earlier version and a later version are shown below. Pictured at the right is the later version.

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Front view of the older Eveready 413E battery.


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Side view of the Eveready 413E battery.


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Side view of the older Eveready 413E battery.


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Top view of the Eveready 413E battery with red color-coding for the positive terminal


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Top view of the older Eveready 413E battery.


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Bottom view of the Eveready 413E battery with blue color-coding for negative terminal.


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Bottom view of the older Eveready 413E battery.

 


 

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