625 Mercury Hearing Aid Battery
This
is an 625 1.4 volt mercury hearing aid battery used in a few transistor hearing aids in the 1950s.
The 625 mercury battery weighed about 0.1 oz., and measured 3/16" high
by ⅝" in diameter.
Mercury batteries are no longer sold today because of the large
quantities of mercury in them and the consequent environmental concerns.
|
 |
Click picture for larger view |
| |
 
|
|
|
|
Top view of a Number 625 battery. From this view it looks much like a
675 battery.
|
 |
Click picture for larger view |
| |
|
|
Side view of a Number 625 battery showing its "mushroom" shape with the
top part larger than the bottom.
|
 |
Click picture for larger view |
| |
|
|
Bottom view of a Number 625 battery showing its number. This one was
made in the United Kingdom.
|
 |
Click picture for larger view |
| |
|
|
Bottom view of another Number 625 battery showing its number. This one
was made in the United States.
|
 |
Click picture for larger view |
| |
|
|
Picture of a Number 625 battery (left) beside a Number 675 battery
(right) showing the difference in size.
|
 |
Click picture for larger view |
| |
|
|
Top view of a Number 625 battery showing its size. (Each mark on the
ruler is 1/16".)
|
 |
Click picture for larger view |
| |
|
(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
|
|
|
