Hearing aid battery and charger troubleshooting
Your hearing aid stopped working. Before you drive to the office, try these steps. Most battery and charger issues clear up in five minutes. If they do not, bring the device to ACI Hearing Center in Lafayette and we will diagnose it same-day.
My hearing aid will not turn on
Four possible causes. Work through them in this order.
- Dead battery. Disposable? Swap in a fresh one. Peel the sticker off and wait at least 60 seconds before you close the door. Zinc-air batteries need air to activate, and if you close the door too fast they will not power up.
- Rechargeable is not charged. Place the device in the cradle for at least 15 minutes and confirm the charger indicator turns on. If the LED does not light up, jump to the "will not charge" section below.
- Battery contacts. Open the battery door and look at the metal contacts inside. If they are dark, green, or crusty, this is oxidation. Do not scrub them. Bring the device to us.
- Moisture damage. If you dropped it in water, sweat through a workout, or left it in the bathroom during a shower, the receiver or microphone may be flooded. Put the device in a dry-and-store unit overnight. If you do not own one, bring it to us the next morning. We provide free professional dehumidification for our patients.
Still nothing? Call ACI Hearing Center at 337-223-9448. Most repairs are same-day.
My battery is dying too fast
What is normal:
- Size 10 disposable: 3 to 5 days
- Size 312 disposable: 5 to 7 days
- Size 13 disposable: 7 to 10 days
- Size 675 disposable: 9 to 14 days
- Rechargeable (lithium-ion): 24 to 30 hours per full charge
What causes faster drain:
- Bluetooth streaming. Music, phone calls, and TV streaming can nearly double the power draw. If you stream 4+ hours a day, expect 30 to 40 percent shorter battery life. This is normal.
- Old batteries. Zinc-air batteries lose capacity after about a year on the shelf. Check the expiration date on the pack. If you bought a bulk pack a while back, the oldest batteries will die fastest.
- Temperature. Extreme heat (a hot car dashboard) and extreme cold both shorten battery life. Store the device and spare batteries at room temperature.
- Wax blockage. When wax blocks the receiver, the device works harder to push sound through. This drains the battery faster and also makes the sound quieter. Fixed by a receiver wax guard swap, which takes 30 seconds in-office.
- Moisture buildup. Same as wax — moisture inside the device makes it work harder. Dry-and-store overnight or bring it in for professional dehumidification.
My rechargeable will not charge
- Wipe the contacts. Clean both the device charging contacts and the charging cradle contacts with a dry microfiber cloth or a soft-bristled brush. Skin oils and moisture build up here over months.
- Seat the device firmly. Most chargers have a magnetic guide. Feel it click. A small tilt breaks the electrical connection.
- Try a different outlet. Some USB ports do not deliver enough power. Try a wall outlet with the original adapter.
- Read the charger light. Solid or slowly pulsing usually means charging. Blinking red or amber means the charger has detected a problem. See the next section for what specific blink patterns mean.
- Try a fresh charger cable. USB-C cables fail more than the chargers themselves. If you have a spare, swap it.
If none of these fix it, bring the device to us. We stock replacement chargers for Oticon, Phonak, ReSound, Starkey, and Signia in-office.
My charger light is blinking
Blink patterns are how the charger tells you what is wrong. Common patterns across most modern chargers:
| What you see | What it usually means | What to try |
|---|---|---|
| Solid green or white | Fully charged | Nothing. Ready to wear. |
| Slow pulsing green or white | Actively charging | Wait 3 hours for full charge. |
| Blinking amber or orange | Battery is very low, still charging | Wait 30+ minutes and check again. |
| Blinking red | Contact issue or failed cell | Wipe contacts, reseat. If red continues, call us. |
| No light at all | Charger not powered | Check outlet, try different USB port, try new cable. |
Sound cuts in and out
This is almost never a battery issue. The two biggest causes:
- Moisture in the receiver or microphone. Put the device in a dry-and-store unit overnight, or bring it to us the next morning for free professional dehumidification. Most devices come back working normally.
- Wax blockage. Wax builds up on the wax guard at the tip of the receiver. Swapping the wax guard takes 30 seconds in-office and is free for our patients.
Other causes: a loose earwire connection (visible if the wire looks kinked), or a Bluetooth streaming glitch (turn Bluetooth off and back on in your phone settings). If none of these apply, call us at 337-223-9448.
How to clean battery contacts
Disposable-battery devices: Open the battery door. Gently wipe the metal contacts with a dry cotton swab or a soft-bristled brush from your hearing aid care kit. Never use water, alcohol, or contact cleaner — moisture damages the device more than dirt does.
Rechargeable devices: Wipe the charging pins on the device and the pads in the cradle with a dry microfiber cloth. Do this once a week.
Warning. If the contacts look green, crusty, or corroded, stop. This is oxidation. Cleaning it wrong can permanently damage the metal. Bring the device to us and we will clean or replace the contacts safely.
Which battery size do I need
Battery sizes are color-coded so you can never buy the wrong one by mistake. Look at the tab color on the last battery you used:
| Size | Tab color | Typical devices | Life per battery |
|---|---|---|---|
| 10 | Yellow | Smallest CIC and RIC devices | 3-5 days |
| 312 | Brown | Most RIC and BTE devices (most common) | 5-7 days |
| 13 | Orange | BTE power devices | 7-10 days |
| 675 | Blue | Large BTE and cochlear implant processors | 9-14 days |
Not sure? Bring your device to us and we will confirm the correct size and stock you up.
Brand-specific notes
- Oticon Real and Intent: SmartCharger. Slow pulsing white = charging. Solid white = full. Red blink = contact or cell issue.
- Phonak Life and Infinio: Charger Ease. Green LED = charged. Amber = charging. Red = problem.
- ReSound Nexia: Standard charger. White LED steady = full. Pulsing = charging. Red = check contacts.
- Starkey Genesis AI: Turbo charger. Fast charge to 80% in 20 minutes if you are running late. Amber blink = charging. Green solid = full.
- Signia Integrated Xperience: Dry and Clean charger doubles as a dehumidifier. Green means charged and dry-cycle complete.
Still not working?
Bring your device to ACI Hearing Center at 103 Saint Thomas Street in Lafayette. Same-day cleaning, wax guard swaps, receiver checks, and charger diagnostics for our patients. Same-day loaner devices when a repair takes longer.