Hearing Aid Batteries

Hearing aids need a quality steady power supply from quality hearing aid batteries in order to work correctly. The smallest change in a battery's output can turn clear hearing aid performance into poor volume or noise control. AccuQuest currently has a Battery Club Program offered to current patients and their loved ones. A member of the Battery Club pays less for batteries and you can also earn FREE batteries as well. By purchasing batteries at AccuQuest you can save about $45 dollars per year compared to purchasing from a local drug store. You can purchase batteries at our offices without being a Battery Club member. Being a member will save you even more! Click here to learn more about the AccuQuest Battery Club.

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What is the Typical Life of a Hearing Aid Battery?

Usually a standard battery will last between 3-22 days. The life of a battery depends on battery and hearing aid type, battery capacity, and how much the hearing aid is used, but the truth is there is no one answer that will work for every person. There are numerous factors that affect how long a battery will last and each person has a different combination of these factors. Essentially each person has a unique hearing loss “fingerprint”. No one fingerprint will be exactly alike; therefore, no one person will have the exact same battery life as another.

Factors that Affect Battery Life Include:


Individual’s Hearing Loss: As severity increases, increased amplification is required. This causes an increase in the current, which reduces battery life. Therefore, the more severe hearing loss a person has, the shorter the battery life.

Calendar_Icon-01Individual’s Hearing Aid Usage: Most people refer to days when referencing battery life, but what is the definition of “a day” to each person? Some people only wear their aids for 4 hours a day, others wear them 16 hours a day. Hours that the battery lasts is a more accurate way to compare battery life.
Hearing_Aid_Icon-01_Hearing Instrument Itself: The more advanced the aid is the more power is required. This concept is similar to a cell phone. The more features you use on your phone (ex internet, apps, games, movies), the faster the battery dies.
Low Humidity: As humidity is reduced batteries may dry out reducing the battery life. This can be an issue if you are indoors during winter months in northern climates, using wood burning stoves to heat homes, and keeping batteries in dry aid kits in an already dry environment.
humidity_icon-01High Humidity: As humidity increases batteries may take on moisture, interfering with the natural discharge expansion. This could result in swelling/leakage and reduction of battery life. This can be an issue if you work outdoors for extended periods in high temp/high humidity areas and live in an non air conditioned environment.
LOW_temp_icon-01Temperature: As temperature is reduced hearing aid battery voltage is lowered and the functional end point is reached earlier, reducing battery life.
altitude_icon-01 Altitude: As altitude increases the percentage of oxygen in the air is reduced, lowering the hearing aid battery voltage. This can cause the battery to reach the endpoint earlier and reduces battery life.

When Should I Change My Batteries?

  • If sounds begin to be distorted or when you need to turn up the volume more frequently.
  • Hearing aids will sometimes make a small beeping noise when the battery level is low. Immediately change batteries when you hearing this.
  • Make sure to carry extra batteries with you, hearing aid batteries tend to lose power suddenly.
  • For protection from discharging any backup batteries, do not place them close to coins, keys, or metal objects.


Why is There a Seal on Hearing Aid Batteries?

  • Whenever the seal on a battery package is broken the hearing aid battery will start discharging. Make sure to always buy unopened packages.


Can Battery Drain Be Reduced?

  • Turn off or open the battery door when not wearing your hearing aid.
  • When you will not use your device for a long period of time remove the battery.
  • Refrain from storing in extreme temperatures.


Hearing Aid Battery Care Tips:

temp_icon-01Store batteries at room temperature. Batteries should not be carried loose in your pocket or purse. If a battery inadvertently comes into contact with a metal object such as coins, keys, or other batteries the battery may short out, leak or in rare incidences even rupture.
batteries_on_shelf_icon-01Just like fresh vegetables are better than canned vegetables, a fresh battery is better than an aged battery. When batteries sit on a shelf or in a warehouse, they slowly lose their energy. Temperature fluctuations and the slow seepage of air into the battery are some of the factors that can affect the life of the battery while it sits.
sun_icon-01During the summer months when it is hot and humid use a dry aid kit. This keeps the circuitry, electronic components and batteries free of moisture from the air and/or perspiration. Optimally, the battery should be removed from the aid while inside the dry aid kit. A good rule of thumb to use is when your skin feels dry and needs moisture; it is time to stop using your dry aid kit.