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The battery is the power source for the hearing aid to work properly. A good hearing aid battery should exhibit high capacity, low internal resistance and long shelf life. High capacity can be used for a longer period of time; small internal resistance can provide greater transient currents to reduce distortion; long shelf life makes it unnecessary for users to frequently buy newly produced batteries, and can reduce the capacity due to shelf life The loss of decline.

Why do hearing aids have to use a zinc-air battery? What are the advantages of this battery?

The zinc-air battery uses oxygen in the air as the positive electrode material, so it is no longer necessary to put it in the battery, and there is room for more negative electrode material in the battery. Therefore, its capacity is 3-10 times higher than other batteries, which is the highest among all applicable battery systems. The battery also has the advantages of stable operating voltage and low noise. It is the most ideal power source for hearing aids.

There are several models of commonly used batteries for zinc air hearing aids. Which hearing aids are used for each?

There are four types of zinc air hearing aid batteries: A10 is used for ear canal (ITC) and deep ear canal (CIC) hearing aids; A13 is mostly used for behind-the-ear (BTE) and in-ear (ITE) hearing aids; A312 is mostly used in the ear. (ITE) and ear canal (ITC) hearing aids; A675 for behind-the-ear (BTE) hearing aids;

How long does a battery last?

The actual battery life is related to the type of hearing aid, the power of amplification, the degree of personal hearing loss, the daily use time and the volume adjusted during use. The difference is very large. In general, the larger the battery used for a hearing aid or the smaller the hearing loss, the longer it will take. From the actual usage we know, the following time is available for your reference:

What is the tape at the bottom of the battery? Is it reusable when the battery is removed?

The tape is used to close the vent hole of the positive electrode, to isolate the air, and to avoid the influence of various components such as carbon dioxide and water vapor in the air when the battery is not used. At this time, the battery is in a sleep state and can be stored for a long time. If the battery that has been used for a period of time is taken out of the hearing aid, and then the air hole is sealed with a tape, although the battery life can be prolonged in a small amount, since the battery has been partially discharged, an oxidation reaction has occurred inside, and it is generally unnecessary to do so.

Why is there a new battery that has just been placed in a hearing aid and there is no electricity?

It may be that you just peel off the tape or the battery temperature is too low. The air intake hole at the bottom of the battery has been glued on the factory. At this time, there is no oxygen in the battery, and it is in a dormant state. After the adhesive tape is removed, the battery is gradually activated by 60 seconds. In addition, in the cold season in the north, the battery that has just been taken from the outside is low in temperature and needs to be used after the temperature has risen to room temperature.

Should the battery be placed in a dry box with the hearing aid every night?

Zinc air batteries are susceptible to environmental influences. The optimum humidity is about 60%. Too dry or too humid will shorten the use time. When the summer rainy season or the southern spring rainy season is wet, the battery compartment should be opened every night and the battery and the hearing aid should be placed in the dry box. Under normal or dry conditions, do not put the battery in a dry box at night to avoid excessive drying. In most parts of northern China, batteries do not need to be dried throughout the year.

When the battery runs out or there is no power, is it necessary to take it out of the hearing aid immediately?

A battery that is used up or not in the battery will be over-discharged in the hearing aid, which may cause the battery to leak or over-expand, so the battery must be removed immediately after it has been used up.

Where is the unopened battery stored better? How long is the shelf life generally?

Please keep it in a cool and dry place. It is recommended to store it in a sealed box like a lock, not in the refrigerator. High temperature, high humidity and direct sunlight all cause great damage to the battery. The shelf life of hearing aid batteries sold in the market is generally in 2-3 years.

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