Novel UM5 ("N" size) Hearing Aid Battery
The Novel UM5 1˝ volt size "N" battery was made
by Fuji Electrochemical Co Ltd of Tokyo, Japan around 1965.
The Novel UM5 battery weighed 0.1 oz.
(4 g). It measured 1 3/16" high
by 7/16" in diameter (2.9 x 1.1 cm). |
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Front view of the Novel UM5 battery showing the model
number—UM5 (S) 1.5 volt. "N"-sized
batteries were
commonly used in transistor body aids in the 1950s and 1960s. They are
still used for some assistive listening devices today.
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Side view of the Novel UM5 battery showing its manufacturer.
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Top view of the Novel UM5 hearing aid battery showing the
positive terminal.
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Bottom view of the Novel UM5 hearing aid battery showing the
negative terminal.
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