Zinc-Air (ZnO2) - 1.4 Volts Per Cell
| The Zinc-Air Battery |
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A battery with Zinc as one electrode and Air as the other, which saves carrying one electrode around as air can be collected, as it's needed. These cells have a high capacity for their volume and have replaced silver and mercury cells for use in hearing aids. They have been described as "super long life" hearing aid cells. As supplied, with an adhesive tab, they have a long shelf life. As soon as the tab is removed air is allowed into the cell and the cell begins to self-discharge. Its life will then be about four months whether it is used to not; putting the tab back is not very effective. Zinc-Air cells offer very good value for money because of the quantities used in hearing aids. Voltage 1.4 volts. |
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