Hearing Aid Battery Life

Factors Affecting Battery Life

Personal Factors

  • Individuals Hearing Loss – as severity increases, increased amplification is required. This causes an increase in power consumption which reduces battery life.
  • Individuals Hearing Aid Usage – as wearing time increases power consumption also increases thereby reducing battery life.
  • Hearing Instrument Itself – the more advanced the aid is, the more power is required.

Environment Factors

  • Humidity – as humidity is reduced, batteries may dry out reducing the battery life.
  • Temperature – as temperature is reduced, hearing aid battery voltage is lowered, which reduces battery life.
  • 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.
  • Personal Environment – the noise around you can affect battery life. A battery will drain less in a library versus a restaurant or rock concert. Also, if the volume is “maxed out” on your hearing aid this will prematurely drain the battery.

The best way to estimate your battery life is to live a typical week and document the dates you change your battery. Once you use up all the batteries in a package, you should have a good estimate of your typical battery life.

Battery Tips

  • Store batteries at room temperature.
  • Store batteries in there packaging. 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.
  • Store and discard batteries in places that cannot be reached by children.
  • Zinc air batteries use air as a source of power and the tab provides a seal that ensures freshness until the battery is ready for use. To activate the battery, simply remove the tab, wait one minute to allow air to activate the ingredients, and insert the battery into your hearing aid.
  • Buy fresh batteries. 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.
  • Use a dry aid kit during the summer months when it is hot and humid. This keeps the circuitry, electronic components and batteries free of moisture from the air and / or perspiration.
  • Stop using your dry aid kit when your skin feels dry and needs moisture. Using a kit when climate conditions are dry can prematurely dry the cell and lead to shortened battery life.