Disposable Zinc-Air Batteries
Disposable zinc-air batteries come in four sizes and are colour coded to help you remember the right size. The batteries are air-activated, which means they do not begin working until the coloured tab is removed and air is able to enter the battery cell. Remove and discard the tab only when you are ready to use the battery. There is no need to place the tab back on the battery.
Hearing Aid Battery Sizes
- Size 13 batteries have an orange tab
- Size 312 batteries have a brown tab
