Expert Answers from Hearing Healthcare Providers

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Do hearing aids work normally when the battery is low?

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Ram Nileshwar, AuD

Doctor of Audiology in Lake Charles

18 December 2016 - 1564 Views

This is a very good question and one that my patients frequently ask. The quick answer is no, meaning they may malfunction on a low battery. However, the period of time the battery is low is extremely small - probably a couple of hours at the very most, depending on the type of battery used. The battery current demands from todays advanced hearing aids that are designed to do a vast variety of things, from directionality and noise management to wireless streaming and ear to ear communication (device on one ear to device on the other ear) are so huge... Read more

What is the expected battery life for a hearing aid with moderate wireless iPhone use?

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Charles Darby PhD, MA, BC-HIS, BC-HIS

Hearing Healthcare Provider in Little Rock

18 December 2016 - 1022 Views

Based on your question, I'm assuming you are using some type of audio streamer with your aids or using one of the newer Bluetooth direct aids.  More info is needed to properly answer but I'll attempt to give a general idea of battery life and what impacts the battery's duration.  The power draw required by the aid determines the life of the battery. There are several size batteries used in today's aids with the smaller lasting fewer days than the larger. They rank in size from the smaller #10 to #312 to #13 and to the larger #675.  The greater the... Read more

What is the best brand of hearing aid battery?

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Christine Pickup, AuD

Doctor of Audiology in Rupert

05 June 2017 - 11078 Views

The biggest factor I have found in battery life with zinc-air batteries is time exposed to air before use.  After the sticker is removed, let the battery sit about 5 minutes to fully activate before inserting into the hearing device.  Since batteries were reformulated without mercury, it takes a little time for the paste inside to become fully oxygenated.  Letting the battery sit for a few minutes will give you almost a full extra day of use.  You can read about 8th grader Ethan Manuell's study in prolonging battery life through his "5 Minute Rule"... Read more

How long do the batteries last in the Halo 2 hearing aids?

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Dan Schwartz

Hearing Aid and Assistive Device Engineer and Dispenser

27 August 2016 - 1005 Views

It varies widely, based on how much streaming is done; and whether mercury-free or older, better non-mercury-free #13 cells (~240 mAh) are used.Typically the Halo draws about 2.2 — 2.5mA in use, and about 5 — 5.5 mAh when streaming

How long do rechargeable hearing aid batteries last? Do they need to be replaced frequently?

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Matthew Pearson

Hearing Aid Audiologist in London

25 May 2017 - 3147 Views

The Z-Power battery used in Unitron & Starkey devices among others should be changed once a year.If you have forgotten to charge them one advantage is that you can change them for regular zinc-air batteries.The lithium-ion battery used by Phonak should last according to Phonak 4 years before your notice any reduction in performance. If you have elected to go for a 5 year warranty the batteries could then be swapped as a repair under warranty. So not as easy to change as the silver-zinc batteries, but a less frequent change & no annual cost to... Read more