Which batteries can I use with my Phonak non-rechargeable hearing aids?

Please note: Zinc-air hearing aid batteries use air as an energy source. The tab on the battery seals the air holes to keep the battery from being activated. Once the tab is removed- it takes approximately two minutes before the battery is fully activated. At this point- you can insert it into the battery compartment of the hearing aid and close the battery door. Inserting fresh batteries without letting them breathe might prevent your hearing aids from starting up correctly and shortens the lifetime of the battery. If you do not use your hearing device daily- remove the battery to prevent possible leakage from damaging the device.