Do Rechargeable Hearing Aid Batteries Really Work?

Symbol of rechargeable hearing aid battery charging.

Worrying about running low on batteries is something you shouldn’t have to do with rechargeable hearing aids, but when you rely on this technology, it might make you slightly concerned. Do rechargeable hearing aids work, and do they work as well as advertised?

Those questions are understandable, as is the accompanying stress. A hearing aid is often as important for the enjoyment of a television show or a movie as it is for a trip to the grocery store or any other part of day to day life. When a piece of technology impacts so many areas of your life, it’s important that it work correctly and reliably.

What Kind of Battery do I Have?

Most modern hearing aids have rechargeable batteries by default, so it’s likely if you bought your hearing aids recently, it has one of two kinds of batteries. Silver-zinc batteries, which have a battery door on the back, are rechargeable, but every now and then they have to be replaced. A Lithium-ion battery, however, will last for the duration of the life-cycle of the hearing device and, because of that, those devices will not have that distinguishing battery door.

Rechargeable Hearing Aids Need Special Care

For the most part, rechargeable hearing aids do work, and they work well. As battery technology has improved in the last several years, the dependability of these devices has increased dramatically. In order to increase reliability, however, there are some maintenance measures users can take as they would with any other electronic device.

  • Store Your Hearing Aids on The Charging Station: If your hearing aids have rechargeable batteries, you can increase your device’s battery life by ensuring that you regularly store your hearing aids on their charging station. The long term battery life is not diminished by charging a battery that is not fully drained.As a matter of fact, making sure that your hearing aids are charging when you’re not using them can actually boost your long-term battery life. For many people, setting their charging station beside their bed is a simple reminder to charge the devices when it’s not being used.
  • Keep Your Hearing Aids Clean and Dry: No matter how often you use or do not use your hearing aids, they have ample opportunity to accumulate dust, debris, and moisture. Any combination of these three elements can undercut the capacity of your battery and can interfere with charging as much as it needs. When connecting your hearing aid to your charging station, as with any other time, it’s important to keep your device clean.
  • Be Careful of Wires: Either the hearing aid itself or the charging station will have some kind of wire element on most hearing aids. Being mindful of these wires is essential for hearing aid users; the connection that allows the device to charge can be damaged if you pull on or hold it by the wires.

How to Replace a Rechargeable Battery

If you have lithium-ion batteries, they will probably last as long as your device does. So replacing those batteries won’t be something you ever have to worry about. Your hearing aids can then be simply charged as long as necessary.

Hearing aids that rely on silver-zinc batteries, however, might require fresh batteries once in a while. Replacing batteries in the correct way can help increase the longevity of your hearing aids. Because of this, hearing experts suggest the following:

  • Don’t eliminate any packaging or plastic tabs until you’re ready to use batteries.
  • Ensure you wash your hands before replacing your hearing aid batteries.
  • Let the batteries sit out at room temperature for at least five minutes before taking off any tabs that might be attached.
  • Clean and free of moisture is the state that your battery compartment should be kept in.
  • Store batteries in a room temperature spot that is also certain to be dry.

Non-Use For Long Periods

Leaving your hearing aids on the charger for extended periods of time is no longer the best way to store your hearing aids. If, for instance, you know that you won’t be wearing your hearing aids for a few weeks or months, you can simply disconnect the charger and store your hearing aids in a dry and cool place.

If your hearing aids use silver-zinc batteries, you may also think about leaving the battery door open in order to prevent moisture from corroding your batteries.

Keep it Charged Every Day

For most people, and for day to day use, charging your hearing aids once a day should be sufficient for all of your requirements. A lithium-ion battery, as an example, will usually require just 3-4 hours to charge enough battery power for a 24 hour period.

Do rechargeable hearing aids work? They don’t only work, they are becoming more common all the time. To see all the different models, make an appointment with your local hearing aid retailer.