While hearing aid batteries are relatively inexpensive – generally costing about one dollar per zinc air battery – the costs can add up. Many people will spend at least $100 per year on their disposable batteries. Here are some things you can do to save money and be more eco-friendly while making your batteries last longer:

What affects battery life?

  • Both high humidity and low humidity can affect battery life.
  • More advanced hearing aid features require more energy use, which drains battery power more quickly.
  • High altitude can lower battery voltage.
  • Extreme temperatures can affect how batteries function.
  • Exposure to loud noises makes batteries work harder and die more quickly.

Hearing aid batteries last anywhere between five and 14 days depending on the above factors. You will know it’s time to replace your hearing aid batteries when the aids start beeping. One solution to save money and make batteries last longer is to purchase rechargeable batteries. Still, if you want to use zinc air batteries, here are some tips to increase their lifetime:

What you can do to increase battery longevity

  • Store your batteries at room temperature. Purchase a dehumidifier or dry aid kit. This will remove the moisture from the inside of your hearing aids and protect your batteries. Just make sure to remove the batteries before putting the devices in the dry aid kit so they don’t dry out.
  • After taking the tab off of zinc air batteries, let them sit for one minute or more, which can maximize their energy.
  • Remove the batteries from your hearing aids at night. If they remain in your devices, they will drain power.
  • Clean the battery contacts – inside the hearing aids – with a cotton swab to dry them. If you see corrosion on the contacts or batteries, throw the batteries away immediately.
  • Always carry extra batteries with you, in case yours die unexpectedly, but don’t leave them jangling in a pocket or purse with metal objects and coins.
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