How to Recharge Rechargeable Hearing Aids

How to Recharge Rechargeable Hearing Aids

Hearing aid batteries are stores of energy, not electricity, and they store this potential in ions in virtual racks. This article is about charging rechargeable hearing aids, but first we have some simple science to share.

Electricity occurs when the battery ions flow along electric wires to suitably-matched hearing aids, and empower them to do their work. When the ions are all used up, the batteries are ‘out of juice’ and the hearing aids stop working.

But that’s not necessarily the end of the road for them. We can pop fresh, single-use batteries into them or we can put the ions back into the batteries if they are the rechargeable type.

How Batteries Work:

It’s important to understand how batteries work to use them correctly. Those fires in cellphones and electric cars caused a real stir when their owners pushed them to limits. It’s good to know hearing aid batteries use different chemicals that are safe and can’t catch alight.

None the less, it’s important to allow sufficient charging time for rechargeable hearing aids, for reasons we shall explain. But first, it’s back to the 101 classroom, so please form an orderly line like you did when you were kids. We should mention what follows is a simple allegory, because our lift does not stop on the floor of battery science.


Single use batteries are finished, kaput and good for the recycling bin when they are flat, used up and spent. However, rechargeable batteries have different chemistry that allows us to renew them. But first, we need to take a short detour into battery memory, so we understand how to charge rechargeable hearing aids correctly.

How to Recharge Rechargeable Hearing Aids

This part of our article is a walk in the park now we know how the science works. In fact, it’s even easier than we may think, because manufacturers include technology that prevents hearing aid batteries from over-charging.

We just need to make sure they don’t go completely flat and allow sufficient charging time for our rechargeable hearing aids so they renew fully. The method is the same regardless of the battery type.


Inspect your hearing aids, and the batteries (if accessible), when they arrive for any damage before using them. Contact the supplier if in any doubt. Charge the batteries overnight for twelve hours if everything checks out.


Start using the hearing aids the following morning. Experiment with the settings until you can hear clearly again. Rejoice in the moment, live the day.


Recharge the hearing aids again that evening while they still have some charge, and overnight so they are full again. Continue doing so until you stop wanting to hear properly again.

Is This Really Worth the Hassle?

You bet it’s worth it, especially if you purchase Melofair Hearing Aids. They give your up to 16 hours battery life after a single, 2-hour charge. They price only $169 a pair including batteries, case and accessories, or you can even subscribe them monthly for a price of fine dining.  They are ‘child’s play, plug and play devices.

Back to blog