Hearing Aid Battery Tester

by Health Enterprises

Product Features

• Works on all hearing aids
• Fits in pocket, purse or on keychain
• Easy storage for extra batteries

Product Details

• Item Weight: 1 ounces
• Shipping Weight: 9 ounces (View shipping rates and policies)
• ASIN: B0015S14UG
• Average Customer Review: 4.0 out of 5 stars  See all reviews (10 customer reviews)
• Amazon Best Sellers Rank: #8,649 in Pet Supplies (See Top 100 in Pet Supplies)

Product Description

Hearing Aid Battery Tester Save time and aggravation by quickly determining if your hearing aid battery is good. Built-in battery holder also makes it easy to store extra batteries. Works on all hearing aids. Fits in pocket, purse or on key chain.

Customer Reviews

Most Helpful Customer Reviews

13 of 13 people found the following review helpful:

5.0 out of 5 stars Hey!! This Thing Works!, July 23, 2010

By 

Donald E. Thomas "Old Snipe" (Bend, Oregon) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Hearing Aid Battery Tester (Misc.)

Small keychain device that really works. I must have collected a dozen used batteries , some slightly, some completely. Don't know where they come from but those of you that wear hearing aids know what I'm talking about. This tester is cheap, simple to use and it works well. At least on my #13 batteries. It also has room to stow a pair in it's built in holder. Don't wait until your out & about to hear that low battery chirp in your hearing aid. Know before you start your day that you got plenty of juice. If you wear hearing aids you need this!

6 of 6 people found the following review helpful:

5.0 out of 5 stars Hearing Aid Battery Tester, January 17, 2011

By 

Laurence H. Wood "Onetree" (Portland, OR) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Hearing Aid Battery Tester (Misc.)

Finding a hearing aid battery tester is difficult at best. Walk into your local suppliers of batteries and testers and they are clueless as to the difference between a "battery tester" and one specifically designed for testing hearing aid batteries. They are not the same. Regular battery testers do not work for hearing aid batteries.

This tester is speific for hearing aid batteries and works every time. It is easy and reliable. Unfortunately, it seems to be available only online, regardless of source, including large store chains.

It is small, unobstrusive, inexpensive and has a compartment for carrying extra batteries. We purchased two, one to travel and one to stay home.

11 of 14 people found the following review helpful:

2.0 out of 5 stars Hearing Aid Battery Tester, June 29, 2011

By 

James A. Wilber "Indy Reviewer" (Indianapolis, IN) - See all my reviews
(REAL NAME)   

This review is from: Hearing Aid Battery Tester (Misc.)

The tester is a one-size-fits-all device. Hearing aid batteries come in several sizes, all with different current ratings. This device might be somewhat useful for some sizes but could not be appropriate for all of them. If you just want to see if the battery has some charge, it may be O.K.

Hearing aids are programmed to disconnect from the battery when the voltage drops to about 1 volt. Otherwise, the battery would continue to discharge to 0.5 volts where the electrolyte might exit the battery air hole, and damage the hearing aid. Since this device is not calibrated, you have no idea where the 1 volt threshold is on this tester. Since it is a one-size-fits-all, its load current probably does not match that of your hearing aid.

Usually your hearing aid is the best battery tester you can have. When it cuts off, the battery is no longer capable of sustaining the required load current with a voltage above 1 volt. Even if you would put the battery in an appropriate tester to confirm end of life, you would need to do it rapidly, as the battery's chemical reaction would restore charge while there was no load, and the battery would look good when first placed in the tester.