Use of batteries

Batteries are vital for the use of hearing aids.

Hear-it has organized this checklist of practical information on hearing aid batteries:

  • A standard battery for a hearing aid lasts between 5 and 14 days, depending on the type of hearing aid, capacity, type of battery and how much the hearing aid is used.
  • It is time to change the batteries if sounds are distorted or you have to turn up the volume more than usual. Hearing aid batteries often lose power very suddenly, and it is advisable to carry an extra set of batteries with you. Keep the extra batteries away from coins or other metal objects to avoid discharging them. Some hearing aids make a small beeping sound as a sign of a tired battery.
  • Always make sure that the battery seal is unbroken as a hearing aid battery begins to discharge as soon as the protective seal is removed. Always purchase unopened packages.

Longer life

You can take a variety of simple steps to make sure that the battery and the hearing aid will last longer.

  • Leave the battery compartment open at night, ensuring that moisture can escape and not corrode the battery and damage the hearing aid.
  • Wash your hands thoroughly before changing batteries. Grease and dirt on the batteries may damage the hearing aid.
  • Batteries last longer in a cool climate. Avoid storing in very cool or hot areas because this may drain the power and shorten the life of the batteries.

Batteries come in many sizes and with varying capacities. Capacity is measured in milliampere hours (mAh) indicating how long the battery can last. A 70 mAh battery does not last as long as a 610 mAh battery. Always consider price and power output.

Protecting the environment

Always purchase environment-friendly disposable batteries. And, if possible, purchase button cell batteries with zinc air (almost exclusively used for hearing aids), or button cell batteries with silver oxide or alkaline. Batteries are toxic and should always be kept away from children.

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