The battery is the source of power for the hearing aid to work properly. In general, the greater the gain and output of the hearing aid, the greater the battery energy required, and correspondingly, the larger the battery. If the energy of a battery is insufficient, the output sound pressure of the hearing aid will be limited. Customized hearing aids are often used in three sizes: 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 must have the following characteristics: small size, constant voltage, reliable quality, long service life, and harmless to the environment. Hearing aids should be used in useHearing aid batteryAs mentioned above, select the appropriate battery according to the model of the hearing aid. When using it, the positive and negative terminals of the battery should be placed correctly. Tear off the small label on the battery and wait for about 60 seconds to allow enough oxygen to enter the active electrochemical system; once the battery is activated, it is slowly depleted. When not in use, putting a small label back can reduce consumption, but he can’t completely block the process.
The battery life varies depending on the size of the battery, the power of the hearing aid, the position of the volume switch, etc., generally 1~4 weeks.
The zinc-vacuum battery contains a high concentration of electrolyte inside. Once the liquid leakage occurs, it will corrode the part near the battery; and the battery has holes, which are prone to liquid leakage. When using it, it is recommended to open the hearing aid battery compartment every night; when not in use for a long time, Need to remove the battery.
If the hearing aid sounds distorted or the volume used is louder than usual, the hearing aid battery should be replaced. When some of the hearing aid’s batteries are used up, a beep will be issued to replace the battery.
It should be noted that the battery should not be in direct contact with coins or other metal objects to avoid short circuits and consume electrical energy. Also be careful to prevent children from swallowing to avoid accidents.
In principle, the battery loses energy during storage. Although some batteries have longer storage times than other batteries, the inherent electrochemical system inherent in the battery itself gradually loses energy in the battery, a process that becomes self-discharge. This process is related to the material properties of the positive electrode in the electrolyte and also to its thermodynamic instability. The self-discharge phenomenon of rechargeable batteries is more obvious than that of non-rechargeable batteries. Self-discharge of rechargeable batteries at room temperature is generally 15%~25% per month; monthly self-discharge of solar cells
The rate is relatively low, about 10%; but in the non-rechargeable battery, the self-discharge electrode is low, generally lower than 2% per year at room temperature, but this value is affected by many factors.
Temperature is the biggest influencing factor in all environments, which is related to the temperature at the electrode, electrolyte interface, and the dependent electrochemical reaction, which can be considered 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 level also increases, the current increases, and energy is consumed. The temperature of the refrigerator is generally 0~10°c. A good place to put the battery. When used, it takes a lot of energy to gradually return to room temperature. The second major factor is humidity. The zinc-air battery is characterized by its direct connection to the surrounding atmosphere. If the relative humidity in the environment is too low, the electrolyte in the battery will slowly dry out; the relative humidity is too high, the system will store moisture, both of which are associated with the zinc-free battery. The performance is reversed. If the battery is stored in the refrigerator, the refrigerator also provides a low temperature environment. Just like the food that is not covered in the refrigerator, the food will gradually lose water and dry out slowly. So it is best to put the battery in an anti-evaporation package.
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