Hearing aid care · 2026

Charging Hearing Aids: How Long It Takes and What to Do Without a Charger

Keeping your hearing aids charged is the key to clear, all-day sound. Whether you're new to rechargeable hearing aids or planning a trip, knowing how charging works saves you from a dead hearing aid at the wrong moment.

Short answer: many rechargeable hearing aids fully charge in about 3 to 4 hours, so charging overnight is the easiest routine. How long a charge lasts depends on the model and how much you stream: for example, Phonak Eon Sphere is rated for up to 38 hours per charge and Signia Pure Charge&Go MaX for up to 30 hours. Check your model's guide for exact times.

How Long Does It Take to Charge Hearing Aids?

Most rechargeable hearing aids, including models from Phonak, ReSound, Signia, Starkey and Oticon, recharge in their case or dock in a few hours. Many models can also give you a partial charge in a short time, which helps on a busy morning; your hearing aid's user guide lists the exact times.

Charging speed can depend on:

  • Battery age: rechargeable batteries slowly hold less charge over the years.
  • The charger: use the charger made for your model.
  • Temperature: very cold or very hot rooms can affect charging.

Most chargers have indicator lights that show when charging is in progress and when it's complete. If you're not sure what your lights mean, the free manufacturer tech support lines on our hearing aid repair page can help.

How Long Does a Full Charge Last?

Battery life on a full charge varies by model. A few examples from the hearing aids we carry:

Your real-world battery life may be shorter if you:

  • Stream calls, music or TV over Bluetooth for long periods
  • Spend long stretches in noisy places, where the hearing aid works harder
  • Use extra features such as tinnitus programs

All of these newest models come in rechargeable versions. Every price on our site includes the hearing aids and your fitting fee.

What If You Don't Have Your Charger?

It happens: chargers get left behind, lost or damaged. If you don't have your usual charger:

  • Check how your charger gets power. Many chargers plug in with a USB cable, so you may be able to power yours from a laptop, a car USB port or a portable power bank.
  • Use a portable charger case if you have one. Some charger cases have a built-in battery, so you can recharge without an outlet.
  • Order a replacement charger. We carry chargers for Phonak, ReSound, Signia, Starkey, Oticon and Widex. Shipping is free on orders over $100, or pick up free at our Midtown West office.
  • Call us. Call (332) 238-1028 and we'll help you find the right charger for your model.

Our How-To Videos walk you through pairing and everyday care for several brands.

Tips to Get the Most From Every Charge

  • Put your hearing aids in the charger every night, so you start each day with a full charge.
  • Keep the charging contacts on the hearing aids and in the charger clean and dry. See our guide on how to clean hearing aids.
  • Store your hearing aids and charger in a dry, room-temperature place, away from heaters and direct sun.
  • If you won't use your hearing aids for a while, follow your user guide for storage, and see how to turn off rechargeable hearing aids.

Charging During Power Outages or Travel

If a storm is coming or you're heading on a trip, plan ahead:

  • Charge your hearing aids fully before you leave.
  • Pack your charger and cable in your carry-on, not your checked bag.
  • Bring a USB power bank or car adapter if your charger uses USB power.
  • Pack spare domes and wax filters so a small problem doesn't end your trip.

When Your Rechargeable Battery Needs Service

Rechargeable batteries gradually hold less charge as they age. Signs your battery may need service:

  • A full charge doesn't last as long as it used to
  • The hearing aid charges inconsistently or not at all
  • The hearing aid doesn't turn on after a full charge

First, clean the charging contacts and try a different power source. If that doesn't help, bring your hearing aids to our repair team in Midtown West, or mail them in. The service appointment is $99, and parts are additional. If your hearing aids are under the original manufacturer's warranty, that warranty covers the repair fee at the manufacturer, and shipping and processing to the manufacturer is $25, in or out of warranty. Loaner hearing aids are available for $20 a day while a repair needs more time.

Frequently asked questions

How long does it take to charge hearing aids?

Many rechargeable hearing aids fully charge in about 3 to 4 hours. Your hearing aid's user guide lists the exact time for your model.

How long does a hearing aid charge last?

It depends on the model and how much you stream. For example, Phonak Eon Sphere is rated for up to 38 hours per charge and Signia Pure Charge&Go MaX for up to 30 hours.

Can I charge my hearing aids without the charger?

Rechargeable hearing aids need their own charger. If your charger plugs in with a USB cable, you may be able to power it from a laptop, car USB port or power bank. If it's lost or broken, order a replacement charger for your brand.

Is it OK to leave hearing aids in the charger overnight?

Yes. Rechargeable hearing aids are designed to sit in their charger overnight, so you start each day with a full charge. Check your user guide for your model.

What if my hearing aid won't hold a charge?

Clean the charging contacts and try another power source first. If it still won't charge, our repair team can help. The service appointment is $99, and parts are additional.

Questions about charging? Call (332) 238-1028 or email [email protected].

Need a charger or a quick fix?

Order a replacement charger online with free pickup at our Midtown West office, or walk in Monday to Friday, 9am to 5pm, at 237 W 35th St, Suite 702A.

Dr. Jessica M. Frankel

Co-Founder | Doctor of Audiology

With over 15 years of experience, Dr. Jessica M. Frankel is the co-founder of HearWell Services. A fellow of the Academy of Doctors of Audiology, she specializes in hearing care, rehabilitation, and innovative devices, with a passion for helping people hear clearly and confidently.
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