Say goodbye to batteries with rechargeable hearing aids


A convenient, eco-friendly alternative to traditional hearing aids

We’re delighted to introduce our customers in Bournemouth and the surrounding areas to the advantages of rechargeable hearing aids. At Key to Hearing, we’re keen for you to benefit from the latest developments in hearing aid technology, so we’ve added a range of rechargeable devices from leading brands to our product offering to give you more choice.


Rechargeable hearing aids explained

As the name suggests, a rechargeable hearing aid is powered by an internal battery that can be recharged rather than being removed and replaced.

They’ve been around for a while, but recent enhancements in technology have increased battery life and power output and made them easier to use. Modern devices usually only need charging once a day – just like a smart phone or tablet – and the battery units just need replacing every four to five years.

As a result of these developments, rechargeable hearing aids are becoming more popular, and many of the latest behind-the-ear devices are now available in rechargeable format.

There are two main types on the market today:


1. Lithium-ion rechargeable hearing aids

These use the same technology as smart phones and tablets. Lithium-ion batteries are sealed into the hearing aid for safety reasons. This means it can’t be replaced by the user, but on the other hand, it should last for up to five years.


2. Silver-Zinc rechargeable hearing aids

Available from several brands, these hearing aids use the ZPower Rechargeable System. As Silver-Zinc batteries are more stable than Lithium-ion, they don’t need to be sealed inside the unit. This means you could temporarily fit a disposable battery if you can’t charge your hearing aid for a while.

How rechargeable hearing aids work


A rechargeable hearing aid works in much the same way as a modern zinc-air battery-powered device. The main difference is that you charge the hearing aid rather than replacing the battery.

Your hearing aid will be supplied with a charging pod and you simply plug in your devices overnight so they’re ready to use the next morning. There are even portable pods, so you can take it with you and charge your hearing aids on the move.


The great thing about rechargeable hearing aids is you don’t need to worry about running out of batteries. As long as your hearing aids are charged up, you’ll always be good to go. Whilst the built-in battery will of course need changing from time to time (see above), you won’t need to keep buying new batteries regularly, which could save you money in the long run. This also makes life easier for people with limited dexterity who might find it difficult or fiddly to change their hearing aid batteries.

Just like traditional hearing aids, rechargeables will work alongside a range of accessories such as remote controls, phones, TVs and smartphone applications to give you more control over your hearing and enjoy a better quality lifestyle.

Pros and cons of rechargeable hearing aids

As with any type of hearing aid, there are drawbacks as well as advantages to rechargeable models. We’ve outlined the key facts you need to know about below.



  • No more zinc-air batteries – you’ll no longer need to buy, store or change disposable hearing aid batteries
  • Lithium-ion batteries are sealed – it can be quite costly to replace the units, although this is only required every few years
  • Removes dexterity issues – if you find it hard or fiddly to change your batteries, a rechargeable device could be the answer
  • Limited design options – rechargeable hearing aids are currently only available to people who wear behind-the-ear devices
  • An eco-friendly option there’ll be no disposable batteries to throw away, helping to protect the environment (although you’ll need to use electricity for charging)
  • Everyday charging is required – you’ll need to charge your hearing aids every day as opposed to changing traditional batteries once or twice a week
  • No more getting stuck with no batteries – your hearing aids will work all day when fully-charged, so you won’t need to worry about carrying spare batteries or changing them at inconvenient times
  • You’ll need your charger with you when you’re away – you’ll have to remember to pack your charger every time you go on holiday or travel away with work, and you’ll need daily access to a power point
  • Protection from moisture and dirt – as sealed units, Lithium-ion hearing aids will stop moisture and dirt causing damage.

Rechargeable hearing aids from Key to Hearing

Models available now


Phonak Audéo M-R

This model uses Lithium-ion technology that’s designed to last up to six years. The powerful device enables a full days use including four hours of audio streaming before the hearing aid needs to be recharged. The Phonak Audéo M-R comes with a mini charger case and standard USB charging port. It’s suitable for mild to moderate hearing loss. You’ll also have access to the myPhonak app which offers a Hearing Diary and remote support services.


ReSound LiNX Quattro

This powerful hearing aid offers up to 30 hours’ battery life. Even if you spend 50% of your time streaming TV or audio, a charge will still last 24 hours. As one of the smallest devices on the market, it’s very discreet. The specially-designed charging case is easy to use and take around with you. By downloading the ReSound Smart 3D app, you can keep track of your battery life and receive a notification when charging is required.


Starkey Livio and Livio AI Rechargeable

These are two of the smallest rechargeable hearing aids currently available. The advanced HearingReality ™ technology means you can hear clearly even in noisy environments. It’s compatible with many Apple and Android devices so you can enjoy high quality streaming (Remote Microphone needed for Android devices) and easily make adjustments to your hearing. Each charge lasts for 24 hours. The Livio AI offers extra features including brain and body activity monitoring and fall detection software that raises the alarm if you have a problem.


Oticon Opn S

This device offers super-fast charging, taking just three hours for a full charge. If you need to top up during the day, a quick 30 minute boost will give you six more hours of use. The stylish charger is also easy to use and clean. The Opn S features advanced Lithium-ion technology to offer great sound quality and seamless wireless connectivity to your Bluetooth devices.


Signia Styletto Connect

One of the most stylish hearing aids on the market, the Styletto Connect offers high quality Bluetooth connectivity for phone calls, TV and music. The wireless portable charger means you can use your hearing aids for up to four days without needing to charge them using mains power – ideal for business trips or weekends away. A choice of attractive colour combinations is available, and you can tailor your listening experience to different situations using the discreet myControl ™ app.


Widex EVOKE ZPower Second Generation

Designed for flexibility and performance, this hearing aid features enhanced charger station software and new technology that helps you get maximum power from both short and long charge times. If you’re without your charger, you can swap your ZPower battery for a standard zinc-air battery to keep you going. New developments from Widex also offer better sound personalisation than previous models.


The future of rechargeable hearing aids?


Widex has recently announced a ground-breaking innovation in rechargeable hearing aid technology: the battery-free Widex EVOKE featuring Widex Energy Cell technology. Due for launch in summer 2019, the hearing aid will feature a miniature fuel cell that reenergises in just 20 seconds.

Easy to use and handle, and offering superior sound quality and app control, this exciting new development could eventually spell the end for hearing aid batteries and chargers. Key to Hearing are looking forward to offering Widex Energy Cell technology when available, so watch this space

Like to know more?

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If you live in the Bournemouth area and would like to explore the benefits of rechargeable hearing aids, Key to Hearing would love to help. We have a wide selection of rechargeable devices from leading brands, with options available to suit different types and levels of hearing loss.

Once you’ve chosen a model, our fully-trained audiologist, Keeley Salmon, will help you get the most from your new hearing aids with personalised programming and ongoing support, as well as your choice from our wide range of hearing aid accessories.

Get in touch today to arrange a consultation and no-obligation demonstration of our rechargeable hearing aids in the comfort of your own home.