Zinc Air
Our lungs lead the way: energy comes "from the air". Zinc air batteries use the oxygen in the air to create a reaction with the zinc in the battery. The more power is demanded, the more oxygen is used.
Why zinc air technology? Zinc air batteries have a very high energy density and exhibit an almost horizontal drain curve. They are therefore the ideal power supply, especially for hearing aids.
The air holes of the battery are initially sealed with a protective film. They are kept this way, in an "inactive state", until they are needed. The self-drain of zinc air batteries with protective film attached only amounts to around 3% a year. The film is removed when the battery is inserted into the hearing aid. After several seconds of activation time, the battery begins to produce current. In the activated state (with protective film removed), zinc air batteries can only be stored for a limited period and should be used as quickly as possible.
Type Designation | p 10 | p 13 | p 312 | p 675 |
Type No. | 4610 | 4606 | 4607 | 4600 |
Voltage (V) | 1.45 | 1.45 | 1.45 | 1.45 |
Electrochemical system | Zinc air | Zinc air | Zinc air | Zinc air |
Typical energy (mWh) | 120 | 390 | 220 | 845 |
Typical capacity (mAh) | 100 | 310 | 180 | 650 |
Diameter (mm) | 5.8 | 7.9 | 7.9 | 11.6 |
Height (mm) | 3.6 | 5.4 | 3.6 | 5.4 |
Weight (g) | 0.3 | 0.83 | 0.58 | 1.85 |
