Battery is the power source for hearing aid to work normally. Generally speaking, the larger the gain and output of hearing aid is, the larger the battery energy is required. Correspondingly, the larger the battery volume is. If the energy of a battery is insufficient, the output sound pressure of the hearing aid will be limited. Three types of batteries are often used in customized hearing aids: A13 (diameter 7.9MM, thickness 5.4mm), A312 (diameter 7.9MM, thickness 3.6mm) and A10 (diameter 5.9mm, thickness 3.6mm). The battery used in the customized hearing aid should have the following characteristics: small volume, constant voltage, reliable quality, long service life, harmless to the environment, etc. The hearing aid should use < a href = "http://www.sqhearing.com/tlkp/60.html" target = "_blank" > special battery for hearing aid < / a >. As mentioned above, the corresponding battery should be selected according to the model of hearing aid. When using, the positive and negative poles of the battery should be placed correctly. Tear off the small label on the battery, wait for about 60 seconds, and let enough oxygen enter the activated electrochemical system; once the battery is activated, it will slowly exhaust. When it’s not in use, it can reduce the consumption by putting the small label back, but it can’t completely stop the process.
The use time of the battery varies with the size of the battery, the power of the hearing aid, the position of the volume switch and other factors, generally 1-4 weeks.
There is a high concentration of electrolyte in the zinc air battery, once leakage occurs, it will corrode the part near the battery; moreover, there are holes in the battery, which is easy to cause leakage. When using, it is recommended to open the battery compartment of hearing aid every night; when it is not used for a long time, it is necessary to take out the battery.
If the sound of the hearing aid sounds distorted or the volume used is larger than usual, the battery of the hearing aid should be replaced. When the battery of some hearing aids will be used up, a prompt tone will be given to replace the battery.
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It should be noted that the battery should not be directly contacted with coins or other metal objects to avoid short circuit and power consumption. In addition, children should be prevented from swallowing to avoid accidents.
In principle, batteries will lose energy during storage. Although the storage time of some batteries is longer than that of other batteries, the inherent electrochemical system of batteries will gradually consume the energy of batteries, and this process becomes a self discharge phenomenon. The process is related to the material properties of the anode in the electrolyte and the instability of its thermal power. The self discharge phenomenon of rechargeable battery is more obvious than that of non rechargeable battery. The self discharge of rechargeable battery in room temperature is generally 15% – 25% per month; the self discharge of solar cell per month
The rate is relatively low, about 10%; but in the non rechargeable battery, the self discharge electrode is low, generally less than 2% per year at room temperature, but this value will be affected by many factors.
In all environments, temperature is the most important factor, which is related to the temperature at the electrode and electrolyte interface, depending on the electrochemical reaction, which can be considered as the heart of the battery. When the temperature drops, the reaction rate of the electrode decreases and the current decreases; when the temperature rises, the reaction rate of the electric stage also rises, the current increases and the energy is consumed. The temperature of refrigerator is generally 0 ~ 10 ° C,. A good place to put batteries. It takes a lot of energy to recover to room temperature. The second factor is humidity. The feature of zinc air battery is that it is directly connected with the surrounding atmosphere. If the relative humidity in the environment is too low, the electrolyte in the battery will dry slowly; if the relative humidity is too high, the system will store water, both of which are contrary to the performance of zinc air battery. If the battery is stored in the refrigerator, the refrigerator also provides a low temperature environment, which is like food placed in the refrigerator without cover Like things, food dries out and dries. So it’s best to put the battery in the anti evaporation package first.
Jinghao hearing aid reminder: hearing aid wearing requires professional “matching”, so it is very important to choose a professional hearing aid matching center and a hearing aid tester! If you have any hearing problems, you can call Jinghao for consultation, or come to the matching center for experience. Hearing aid free consultation Tel.: + 86-18566295705
Link：Use and storage of hearing aid battery
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