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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Hearing Aid Batteries

Zenith Z-12-G Hearing Aid "B" Battery

This Zenith 22½ volt hearing aid "B" battery was used in Zenith (and other) vacuum tube hearing aids from about 1948 to 1952.

It weighed 1½ oz., and measured 2⅛" in height, 1 in width and ⅝" thick.

This battery was sometimes paired with an RM-3 1.4 volt mercury "A" battery in vacuum tube hearing aids.

It was also paired with the Zenith Z 1½ volt "A" battery in the Zenith Regent vacuum tube hearing aid of 1952.

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Top end view of the Zenith Z-12-G "B" battery showing the positive terminal end. Notice the red "end" color denoting the positive terminal, as well as the black "+".

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Bottom end view of the Zenith Z-12-G "B" battery showing the negative terminal end. Notice the blue "end" color denoting the positive terminal, as well as the black "-".

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