GPA76 Alkaline Hearing Aid Battery
This No. GPA76 1˝ volt alkaline hearing aid battery was made by an
unknown manufacturer, probably in the 1970s. Alkaline batteries were not
all that popular, as most were mercury batteries at this time.
The No. GPA76 alkaline battery measured 0.455" in diameter by
0.215" thick and weighed 0.05 oz. (1.5 g).
This battery is basically the same size as a 675 battery.
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Bottom view of the No. GPA76 alkaline hearing aid battery showing the
model number (GPA76) in the center and above it, the positive terminal polarity (+).
At the top is "Alkaline cell" and at the bottom the numbers 117E1.
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