Eveready 1052-P Hearing Aid "A" Battery This is an Eveready 1½ volt hearing aid "A" battery used mainly in the vacuum tube hearing aids of the 1940s The 1052-P battery weighed 3½ oz., and measured 3¾" in height and 1" in diameter. |  | Click picture for larger view | | | | | | |
| According to this ad that appeared in the Saturday Evening Post, January 22, 1949, the Eveready 1052-P battery cost 27 cents. This ad shows the Eveready 1052-P 1½ volt "A" battery (right) paired with the Eveready 455-P 45 volt "B" battery (left). As you can see, the "B" battery was more than 7 times as expensive as the "A" battery, but it also lasted longer.
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