Ten years ago, changing a hearing aid battery every few days was simply part of life. Today most new devices fitted in Australia are rechargeable — you drop them in a case overnight and they are ready in the morning. But disposable batteries have not disappeared, and for some people they are still the better choice.
Here is an honest comparison of the two, so you can work out which suits your hands, your routine and your budget.
How Each Type Actually Works
Rechargeable Hearing Aids
Modern rechargeable devices use a sealed lithium-ion cell, the same technology as your phone. You place the hearing aids into a charging case at night; a full charge typically gives a full day of wear, and many cases also act as portable power banks that can top the devices up without a wall socket.
The battery is not user-replaceable. After a few years of daily cycling it will hold less charge, and it is replaced at a service appointment rather than by you at home.
Disposable Battery Hearing Aids
These use zinc-air button cells, sold in colour-coded sizes — most commonly size 312 (brown), 13 (orange) and 10 (yellow). You peel off the sticker, the battery activates in air, and you replace it when it dies.
How long a battery lasts depends on its size, the power your hearing loss needs, and how much you stream. Heavy Bluetooth streaming can noticeably shorten battery life.
Side by Side
Consideration |
Rechargeable |
Disposable Battery |
Daily handling |
Drop in the case — no small parts to manipulate |
Requires opening a tiny door and handling a small cell |
Running out mid-day |
Possible if you forget to charge; a quick top-up gives partial wear |
Carry a spare and you are back running in seconds |
Ongoing cost |
No battery purchases; the internal cell is replaced every few years |
Batteries bought regularly, though individually inexpensive |
Travel and camping |
Needs power, or a power-bank style case |
Works anywhere as long as you have spares |
Heavy Bluetooth streaming |
Handled well, but expect a shorter day on a single charge |
Noticeably faster battery drain |
Available styles |
Most receiver-in-canal and behind-the-ear models; some in-canal models |
Every style, including the very smallest invisible devices |
Very powerful devices |
Available, though options are narrower |
Widest choice for severe to profound loss |
Environmental impact |
No button cells going to landfill |
Hundreds of small cells per year, per person |
Who Rechargeable Hearing Aids Suit Best
- Anyone with arthritis, tremor, reduced dexterity or poor near vision — this is the single most common reason we recommend rechargeable.
- People with a settled daily routine, where charging overnight becomes automatic.
- Anyone who streams phone calls, TV or music through their devices every day.
- Families supporting an older parent — a charging case is far easier to manage than a supply of tiny batteries.
- Anyone who has swallowed-battery concerns with small children or pets at home.
When Disposable Batteries Are Still the Better Call
- You want the smallest, most discreet device available — the tiniest invisible in-canal hearing aids often still run on a size 10 cell.
- You have a severe or profound loss needing a high-power device, where the choice of rechargeable models is narrower.
- You travel, camp, work remote rosters or spend long stretches away from reliable power.
- Your routine is irregular, and remembering to charge each night is unlikely to stick.
- You simply prefer the certainty of carrying a spare in your pocket.
Getting the Most From a Rechargeable Set
- Charge every night, whether or not the devices are flat — lithium-ion is happiest topped up regularly.
- Make sure the devices are seated properly in the case; a charging light should come on.
- Wipe the charging contacts with a dry cloth weekly — wax and moisture are the usual cause of a device that will not charge.
- Do not leave the case in a hot car. Heat is what shortens a lithium cell’s life.
- Take the charger with you when you travel, and check whether your case doubles as a power bank.
Getting the Most From Disposable Batteries
- After peeling the sticker, wait about a minute before closing the battery door — zinc-air cells need air to reach full voltage.
- Store batteries at room temperature, not in the fridge.
- Open the battery door overnight to let moisture escape and save charge.
- Keep spares in your wallet, car and handbag.
- Store and dispose of cells well away from children and pets — a swallowed button battery is a medical emergency.
What About the Cost Difference?
Rechargeable models sometimes carry a slightly higher purchase price, but you are not buying batteries for the life of the device. Over several years the two usually land in a similar place. The bigger cost factor is the technology level you choose, not the power source.
If you hold a pensioner concession card or a DVA card, you may be eligible for devices under the Australian Government Hearing Services Program. New Sound Hearing is an accredited provider and can check your eligibility, and we offer interest-free payment plans for private purchases.
Try Before You Commit
This is one of those decisions that is much easier to make with the devices in your ears. We offer a 30-day trial on the hearing aid of your choice, so you can find out for yourself whether nightly charging fits your life or whether you would rather carry a spare battery.
Frequently Asked Questions
How long does a rechargeable hearing aid last on one charge?
Most current models are designed to cover a full waking day from a full charge. Heavy Bluetooth streaming reduces that, so if you stream for several hours a day it is worth asking about run time for the specific model you are considering.
How long before the built-in battery needs replacing?
Rechargeable cells gradually hold less charge with use. Most need replacing at a service appointment after a few years — often around the same time you would be considering new devices anyway.
Can I convert my existing hearing aids to rechargeable?
Some models have a manufacturer-supplied rechargeable option, but most cannot be converted. Bring your devices in and we will tell you what is possible with your specific model.
What do I do if my rechargeable hearing aids will not charge?
Check that they are seated correctly, clean the contacts with a dry cloth, and try a different power outlet or cable. If the charging light still does not come on, contact the clinic — it is often a simple fix.
Are rechargeable hearing aids safe to fly with?
Yes. Hearing aids and their charging cases are permitted, and lithium batteries of this size should travel in your carry-on rather than checked luggage.
The Bottom Line
Rechargeable hearing aids are now the default for most people, chiefly because they remove the fiddliest part of wearing hearing aids. Disposable batteries still win on discretion at the very smallest sizes, on high-power devices, and for anyone who spends time away from power.
The right answer depends on your hearing loss, your hands and your routine — which is exactly what an assessment is for. If you are at the earlier stage of deciding, start with our guide on how to choose a hearing aid, or see the full range of services at our Pemulwuy clinic. If you have already settled on rechargeable and want to see the models we fit locally, our buyer’s guide to rechargeable hearing aids in Parramatta goes through the brands and what they are like to live with.
To talk it through, call 0452 303 344 or book an appointment. We see patients from Parramatta, Merrylands, Greystanes, Wentworthville and Toongabbie.
This article is general information only and is not a substitute for individual clinical advice.