Do I have to buy a battery for hearing AIDS? Why? Is there a hearing aid shop in Gongyi?

Hearing AIDS can only be used by purchasing special zinc-air hearing aid batteries.

The capacity of zinc-air battery is the highest among all practical battery systems. With oxygen in the air as the cathode material, there is more room for cathode material in the battery, and its capacity is 3- 10 times higher than other batteries.

The working voltage of zinc-air battery is very stable and the noise is very small.

The zinc-air battery must have air when working, so there should be air holes on the battery shell. Stick the air holes with protective tape before leaving the factory, and tear them off when using. In addition, its open-circuit voltage is lower when the pores are closed and higher when the pores are clear, which is not the characteristic of all other batteries.

Gong Yi has a hearing aid shop. You can search on the mobile phone map.