The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

FREESubscriptionto:
Hearing Loss Help
The premier e-zine for people with hearing loss

Your email address
will never be
rented, traded or sold!

Your First Name:

Your E-mail:

General Info

Non-Electric

Carbon

Vacuum Tube

Transistor (Body)

Transistor (Ear)

Cochlear Implants

Miscellaneous

For Sale

Search this site:

Results per
page

all words

any words

Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

Hearing Aid Batteries

General EP-129 Carbon Hearing Aid Battery

The General EP-129 was a 4½ volt zinc-carbon hearing aid battery used in carbon hearing aids in the 1930s and early 1940s. It was manufactured by the the General Dry Battery Company of Cleveland, Ohio.

The General EP-129 battery weighed 8¼ oz, and measured 2½" high by 2 15/16" wide by 1" thick.

This particular battery was used in an Acousticon Model C-6 carbon hearing aid that came out in 1937.

Click picture for larger view

Top view of the General EP-129 carbon hearing aid battery. Note the larger and smaller holes, which ensured that the plug maintained the correct polarity.

Click picture for larger view

Bottom view of the Ep-129 General battery showing the date stamp of October 1940.

Click picture for larger view

(If a larger picture doesn't appear, you may have to turn your pop-up blocker off)