Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

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!

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

 

Hearing Aid Battery Testers

Rayovac Model HT5 Hearing Aid Battery Tester

The Rayovac Model HT5 hearing aid battery tester was distributed by the Rayovac Corporation of Madison, WI around 1977.

It was designed to test zinc-air, mercury and silver button batteries in common use at that time.

The Rayovac Model HT5 battery tester measured 4 7/16" x 2⅜" x 1 3/16" (11.3 x 6.0 x 3.1 cm) and weighed 2.1 oz. (60 g).

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Front view of the Rayovac HT5 hearing aid battery tester.

 


 

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Close-up view of the Rayovac HT5 hearing aid battery tester meter.

The Model No. (HT5) is in the top right corner of the meter.

The meter was easy to read. If the needle remained in the red, the battery needed to be replaced. If it was in the green, the battery was still good.

 

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Bottom front view of the Rayovac HT5 hearing aid battery tester. To test a battery you placed the positive terminal (bottom) of the battery on the metal plate and touched the black probe to the top (negative) terminal.


 

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Rear view of the Rayovac HT5 hearing aid battery tester showing the distributor's name, the model number and instructions for use.

 


 

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Front view of the box the Rayovac HT5 hearing aid battery tester came in.

 

 

 

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Rear view of the box view of the box the Rayovac HT5 hearing aid battery tester came in giving basically the same information that was on the back of the battery tester (above).

 

 


 

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