Maxell No. BL-015 Hearing Aid "B" Battery
The Maxell No. BL-015 hearing aid "B" battery was made by Hitachi
Maxell Ltd. of Japan around 1950.
This 22˝ volt battery weighed 1.0 oz (30 g) and measured 1 15/16"
(5.0 cm) high by 1" (2.5 cm)
wide by ⅝" (1.5 cm) thick.
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Side view of the Maxell No. BL-015 hearing aid "B" battery showing the
polarity and "Made in Japan".
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Top view of the Maxell No. BL-015 hearing aid "B" battery showing the
color-coded red positive (+) terminal.
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Bottom view of the Maxell No. BL-015 hearing aid "B" battery showing
the negative (-) terminal.
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