Hearing Aid Battery Tester Battery Storage Case (Blue)

So Handy! Recently a batch of 312 batteries Dated 2026 from the VA were all bad, but I didn't have a meter that was small enough to read the voltage on button batteries. I ha concluded that after 36 batteries that my hearing aids must have died. I dug into by desk and found a pack of 312 batteries dated 2022 and my hearing aids worked just fine. THIS METER IS A MUST HAVE ! ! GREAT PRICE! SIMPLE TO USE & EASY TO READ even outdoors. BUY EXTRAS FOR YOUR FRIENDS & FAMILY

Great useful

This is a battery tester marketed specifically for hearing aid button batteries. This one is blue, although it also comes in a couple of different colors. The tester is about as long as my middle finger; it's about as wide as two fingers together at the bottom, about as thick as my thumbnail, and tapers slightly at the top. The unit is smooth, with rounded edges. At the wider end is a metal plate for the battery--about as big as my two thumb nails together. An LCD column with teeny tiny percentage markings runs up the middle. The screen is about the size of my little finger tip to just past the first joint, and a little wider than my little finger. It comes with a short, attached ball chain. Two slide out drawers, one on each side in the back, allows for the storage of two extra batteries. Placing a battery negative side down and pressing it lightly against a tiny bar lights up the LCD display, showing a bar climbing to the top. Placing a used battery and a never used battery on the tester measured full charge on both. The manufacturer does note false positives and false negatives are possible due to the condition of the battery casing. This is a handy little device for measuring the available charge of a hearing aid battery. It's portable, relatively sturdy if the metal plate is protected, and convenient for on the spot testing to check if a battery is dead. It does have a LCD screen, so the less light available, the darker the screen will be. For best display, use in bright light. It is easy to drop the battery trying to position it on the plate, and then taking it off again. People with fine motor control issues may find it frustrating. At almost $8.00, I feel it's reasonably priced.

Important Notice before Purchasing: Now digital hearing aids all have low-voltage protection . Hearing aids began to alarm if the voltage is lower than 1.1V , remind the users to replace the battery in order to achieve best effect . If you take the battery out , the voltage would be rebound . But please note , the rebound voltage is false electricity . If you test the battery on the battery tester , it would show full voltage . But in fact , it is not enough for using hearing aids . We have tested different brands & different types of the batteries , they all have the same point , that is if place the battery in air for a few time, the voltage would be rebound (Open-circuit voltage or false-open voltage). So when the hearing aid is distorted or alarm to replace the battery, the battery needs to be test immediately . And the result is for reference only, the actual feedback from hearing aids shall prevail.

The value for this item is way worth it. Fits my 675 hearing aid battery just perfect! Easy to use, quality is awesome. It is by far the best battery tester for hearing aid batteries.

It seems to work just fine.

I like the concept of this little tool, and it might solve a problem for me, but this one is very-very cheaply made. The battery door sticks and is nearly unusable, the display is analog and vague, with no actual units.

About ten years ago, I bought a bunch of hearing aid batteries but did not use them for ten years. Recently, I started wearing hearing aids consistently and although the batteries expired over seven years ago, I didn't want to throw them away if they still worked. Using this device, I have been able to use the batteries that still work. I have found that the batteries are either totally dead (around 30% of batteries) or are as good as new. I have used these batteries for the last three months along with a few new batteries and the old ones last just as long.

Me ahorra mucho $$ en baterías. Tiene un cajóncillo para 2 baterías. Fácil de usar.