Acousticon Number 34 Lead-acid Hearing Aid Battery
This 2-cell 4 volt Acousticon Model 34 lead-acid battery was made for
Acousticon's carbon hearing aids during the 1930s by Dictograph
Products, Inc. New York.
When filled with water/acid, this battery weighed about 12 oz. It measures 3 5/8" by 2 7/8" by 7/8". The casing is made
from a black composition material similar to that used in car batteries.
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