Mallory RM-450H Mercury Hearing Aid Battery
This
is an Mallory RM-450H 1.4 volt mercury battery for body worn
transistor hearing aids of the mid-1950s. It weighed about ¼ oz., and
measured
9/16" high by
7/16" in diameter. Mercury batteries are no longer sold today
because of the large quantities of mercury in them and the consequent
environmental concerns. |
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Top view of the Mallory RM-450H mercury battery. The Mallory RM-450H
was equivalent to the
Eveready E450E
battery.
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Bottom view of the Mallory RM-450H mercury battery.
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The Mallory RM-450H mercury batteries came 4 to a box.
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End view of the box showing the Mallory RM-450H model number.
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Top view of the Mallory RM-450H mercury battery showing its size.
(Each mark on the ruler is 1/16".)
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