Frequency Asked Questions about Lithium-Ion Batteries in Hearing Aids

Frequency Asked Questions about Lithium-Ion Batteries in Hearing Aids

  • Is a lithium-ion battery safe in hearing aids?

Lithium-ion is the popular rechargeable battery choice used in many everyday consumer electronics such as cellular phones and tablets. It is also the rechargeable solution for cochlear implants. Currently, it is the fastest growing and most promising battery technology and has been thoroughly tested. Note that the hearing aid must be stored within the operating temperature of 33 degs to 104 degs Fahrenheit (0 degs to +40 degs Celsius) to ensure safe conditions.

  • How many hours per day can lithium-ion hearing aids last on a single charge?

This depends on the hearing loss, the power of the receiver, and the amount of streaming. However, this usually ranges from 20 hours to 24 hours.

  • Will the performance of the lithium-ion battery deteriorate after 1 year and require replacing?

No. With the Phonak system, the electronics surrounding the lithium-ion battery have been specially designed so that the battery will last up to 4 years. After 4 years, the performance of the battery may deteriorate slightly, but this should not have a large impact on use.

  • Are lithium-ion hearing aids safe to use during air travel?

Yes. Airline rules state that lithium-ion batteries less than 25 grams may be brought on to the plane in carry-on luggage. Phonak rechargeable hearing aid batteries are less than 1 gram and therefore fall far below the dangerous goods level. Commercial airline regulations do not permit lithium-ion batteries to be placed in checked luggage.

  • How do I dispose of a lithium-ion hearing aid?

Lithium-ion batteries are 100% recyclable and can be used to create new products. If you wish to dispose of the hearing aid, please return it to your audiologist or contact Phonak for more information.