Monday, June 10, 2013

How Long Should Hearing Aid Batteries Last?

How long should hearing aid batteries last? What determines a battery's lifespan? Is there a difference in the type and brand of battery? Are hearing aids with rechargeable batteries worth the additional expense of the charger? We'll answer these questions in this week's series of blog posts. This information comes from a handout distributed online by The Hearing Review.

There are five factors that impact how long a hearing aid battery should last. 

  1. Severity of hearing loss
    • The degree of hearing loss will determine the level of amplification an audiologist programs into the hearing aid. The level of amplification will increase the amount of power needed to ensure the hearing aid functions properly. This directly impacts how much battery life is consumed to power the hearing instrument.
    2. How many hours per day the individual uses the hearing instrument
    • The length of time the hearing aid is worn each day directly impacts the amount of battery life that is consumed.
    3. The size of the battery
    • Larger batteries have a longer life than smaller batteries. Smaller batteries have less "ingredients" to power the device. Therefore, smaller batteries typically have a shorter lifespan than larger batteries.
In general, a battery should last around 7-10 days. Battery life that is 3 days or less is often an indication that something is wrong with the hearing instrument and indicates that it needs to be sent to the manufacturer for repair. More in our next blog post...

To view the handout from The Hearing Review (the source of this information), click here.


Image provided courtesy of digitalart of freedigitalphotos.net




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