675HR Mercury Hearing Aid Battery
This No. 675HR 1.4 volt mercury hearing aid battery was made by an
unknown manufacturer in England, probably in the 1970s.
The No. 675HR mercury battery measured 0.455" in diameter by
0.205" thick and weighed 0.05 oz. (2 g).
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The top side of the No. 675HR mercury hearing aid battery showing the
smaller negative terminal.
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Side view of the No. 675HR mercury hearing aid battery. The negative
terminal is at the top. Everything else is the positive terminal.
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Bottom view of the No. 675HR mercury hearing aid battery showing the
model number (675HR) at top, the positive terminal polarity (center) and
that it was made in England (bottom).
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