Hearing aid batteries are tiny powerhouses that keep you connected to the world, ensuring clear sound. Choosing the right size, understanding battery types, and knowing how to change them safely are key. This guide makes it simple to manage your hearing aid’s power for uninterrupted listening.
Is your hearing aid battery giving you trouble? It’s a common frustration when that essential power source starts to fade, leaving you struggling to hear conversations or enjoy your favorite sounds. Don’t worry, keeping your hearing aid powered up is simpler than you might think! This guide will walk you through everything you need to know about hearing aid batteries, from picking the right ones to changing them like a pro. We’ll break down the different types and give you easy-to-follow steps so you can keep your hearing aids working their best, all the time.
Understanding Hearing Aid Batteries: The Tiny Titans of Sound
Hearing aid batteries are small but mighty. They are the heart of your hearing device, providing the consistent power needed for amplification and clarity. Without the right battery, even the most advanced hearing aid is just a piece of plastic. We’ll explore the types available, how to identify them, and why choosing the correct one matters for optimal performance.
The Different Types of Hearing Aid Batteries
The most common type of battery for hearing aids today are zinc-air button cells. They are small, round, and come in four standard sizes, each color-coded for easy identification. Understanding these sizes is crucial for selecting the correct replacement.
Zinc-Air Batteries: The Standard Choice
Zinc-air batteries work by mixing zinc powder with an alkaline electrolyte. The “air” part of their name comes from the fact that they require air to activate. They have tiny holes on their surface; when you remove the protective tab, air enters these holes, initiating a chemical reaction that produces power. This design means they have a good lifespan and are quite reliable.
The four main zinc-air battery sizes are:
- Size 10 (Yellow): The smallest and shortest-lasting. Commonly used in very small, in-the-ear (ITE) hearing aids or some receiver-in-canal (RIC) models.
- Size 13 (Orange): A mid-range size, offering a good balance of battery life and hearing aid size. Often used in behind-the-ear (BTE) and some ITE hearing aids.
- Size 312 (Brown): Another popular mid-range size, offering longer life than size 10. Frequently found in RIC and BTE models where a slightly larger battery can be accommodated for extended use.
- Size 675 (Blue): The largest and longest-lasting of the standard zinc-air batteries. Typically used in larger BTE hearing aids, especially those with higher power needs, like for profound hearing loss, and in cochlear implant processors.
Here’s a quick rundown of the color-coding and common uses:
| Battery Size | Color Code | Typical Hearing Aid Types | Approximate Battery Life |
|---|---|---|---|
| 10 | Yellow | Small ITE, some RIC | 3-5 days |
| 13 | Orange | BTE, some ITE | 6-14 days |
| 312 | Brown | RIC, BTE, some ITE | 6-14 days |
| 675 | Blue | Larger BTE, Cochlear Implants | 10-20 days |
Note: Battery life can vary based on hearing aid usage, streaming time, and environmental factors.
Rechargeable Hearing Aid Batteries
In recent years, rechargeable hearing aid batteries have become increasingly popular. These batteries are built directly into the hearing aid, eliminating the need for manual battery changes. You simply place the hearing aids in a charging case overnight, and they are ready for a full day of use.
The main advantages of rechargeable batteries include:
- Convenience: No more fumbling with tiny batteries.
- Environmental Friendliness: Reduces battery waste.
- Potential Cost Savings: Over time, can be more economical than purchasing disposable batteries.
However, it’s important to note that the lifespan of rechargeable batteries is tied to the hearing aid itself and may eventually require the device to be replaced or refitted. Your audiologist can provide the best recommendation based on your lifestyle and hearing needs for these models.
Why Does the Right Battery Matter?
Using the correct battery ensures your hearing aid functions as designed. An undersized battery might not last as long, leading to frequent replacements and potential interruptions in your hearing. An oversized battery might not fit correctly, potentially damaging the hearing aid. Furthermore, batteries have specific voltage and capacity ratings that affect sound quality and device longevity. Always stick to the battery type and size recommended by your audiologist or the hearing aid manufacturer.
Buying Hearing Aid Batteries: Where and What to Look For
Finding the right batteries should be straightforward. The key is knowing where to purchase them and what to look for on the packaging.
Where to Buy Batteries
Hearing aid batteries are widely available. Here are the most common places to find them:
- Your Audiologist’s Office: This is often the most convenient and reliable source. They will have the exact type of battery your hearing aids require and can ensure you get a fresh, high-quality product.
- Pharmacies and Drugstores: Most major pharmacy chains carry a selection of hearing aid batteries, typically in the hearing aid aisle or near the checkout. Look for brands like Rayovac, Duracell, or Energizer.
- Supermarkets and Discount Stores: Some larger grocery stores and discount retailers also stock hearing aid batteries.
- Online Retailers: Websites like Amazon, Walmart.com, and specialized medical supply sites offer a vast selection of hearing aid batteries. Buying in bulk online can often lead to cost savings. When buying online, always check reviews and ensure you’re purchasing from a reputable seller to get fresh batteries. Check out resources from the Hearing Loss Association of America for more information on hearing aid basics.
What to Look For on the Packaging
When purchasing batteries, pay attention to these details:
- Size Number: Ensure it matches your hearing aid’s requirement (10, 13, 312, or 675).
- Color Code: Double-check that the color on the packaging matches the required color.
- Expiration Date: Batteries have a shelf life. Always check for the expiration date and choose the freshest ones available. Older batteries may not hold a charge as long. Your batteries should be fresh for at least a year past their manufacture date.
- Brand: While many brands are reliable, some users find certain brands perform better in their specific hearing aids. Your audiologist can offer recommendations.
Battery Freshness: The Hidden Factor
Hearing aid batteries are activated when you remove the thin adhesive tab from the back. This tab seals a small hole, preventing air from entering and starting the chemical reaction. Once the tab is removed, the battery starts to lose its charge, even if it’s not inserted into a hearing aid. Therefore, it’s always best to buy batteries with a future expiration date—ideally at least a year away. This ensures you’re getting the maximum potential life from each battery.
Changing Hearing Aid Batteries: A Simple Step-by-Step Guide
Replacing the battery in your hearing aid is a simple process that most users can do themselves. Follow these steps carefully to ensure a smooth and safe battery change.
Tools You Might Need
For most hearing aids, you won’t need many tools. However, a few items can make the process easier:
- Your hearing aid
- A new, correct-sized battery
- A clean, well-lit surface to work on
- Optional: A small, pointed tool like a toothpick or the tip of a fingernail clipper can help gently pry open the battery door if it’s stiff.
The Step-by-Step Process
- Find a Tidy Spot: Choose a well-lit area where you won’t lose the tiny battery if you drop it. A table or desk is ideal. Some people prefer to do this over a tray or cloth to catch any dropped items.
- Open the Battery Compartment: Most hearing aids have a small door that swings open to reveal the battery. This door is usually located on the back or side of the hearing aid. You might need to gently push a small latch or lever with your fingernail or a small tool.
- Remove the Old Battery: Once the compartment is open, the battery is usually held in place by a small magnetic contact. Carefully slide the old battery out. You can often use your fingernail or the edge of the new battery to gently nudge the old one out.
- Activate the New Battery: Take your new battery and peel off the colored protective tab. This exposes the battery to air, and it will begin to activate. For the best possible performance, wait about 1-2 minutes after removing the tab before inserting the new battery to allow the activation process to begin.
- Insert the New Battery: Look closely at the battery and the battery compartment. There’s a specific way the battery needs to go in. The battery is usually marked with a “+” symbol on one side, and the compartment often has a matching “+” mark or a diagram showing the correct orientation. The flat side (with the text and “+” symbol) typically faces upwards, towards the battery door. Gently slide the new battery into the compartment.
- Close the Battery Compartment: Once the battery is seated correctly, gently close the battery door until it clicks shut.
- Check for Operation: Your hearing aid should now turn on automatically. You might hear a faint beep or whirring sound, indicating it’s powered up and working. If it doesn’t turn on, double-check that the battery is inserted correctly and the door is fully closed.
Safety and Handling Tips
- Keep Away from Children and Pets: Hearing aid batteries are very dangerous if swallowed. Keep them in their packaging and dispose of old batteries immediately. If a battery is swallowed, seek emergency medical attention right away. The Poison Control Center provides crucial information on this hazard.
- Handle with Care: Avoid touching the flat surface of a new battery with your bare fingers. Skin oils can sometimes interfere with conductivity.
- Do Not Use Force: If the battery door or battery doesn’t seem to fit, don’t force it. Re-check the battery size and orientation.
- Dispose of Old Batteries Properly: Never throw used batteries in the regular trash. Many recycling centers and some hearing aid providers offer battery recycling programs.
Maximizing Hearing Aid Battery Life
Everyone wants their hearing aid batteries to last as long as possible. A few simple habits can make a big difference in extending battery life between changes.
Tips for Extending Battery Life
- Open the Battery Door at Night: When you’re not wearing your hearing aids, such as when you sleep, open the battery compartment door. This cuts off the power supply and prevents the battery from draining unnecessarily.
- Turn Off Devices When Not in Use: If your hearing aids have an on/off switch, use it when you expect a period without needing amplification.
- Reduce Volume When Possible: Higher volume settings demand more power. If you can turn down the volume safely and still hear well, do so.
- Minimize Streaming Time: Bluetooth streaming to hearing aids uses more battery power. If you’re not actively streaming, consider turning off Bluetooth on your hearing aid or phone temporarily if your device allows.
- Avoid Extreme Temperatures: Very hot or very cold conditions can affect battery performance and lifespan.
- Keep Hearing Aids Dry: Moisture can damage the internal components and affect battery contacts. Use a dehumidifier if you live in a humid climate or sweat a lot.
When to Consider New Batteries
Your hearing aid will typically alert you when the battery is low. This is often a series of beeps. Don’t ignore these warnings! It’s best to replace the battery as soon as you get the low-battery alert to avoid sudden loss of hearing. For rechargeable hearing aids, the alert usually comes through a smartphone app connected to your device or a soft beep.
Troubleshooting Common Hearing Aid Battery Issues
Even with careful management, you might encounter problems. Here’s how to tackle some common issues.
Hearing Aid Not Turning On
If your hearing aid doesn’t turn on after inserting a new battery:
- Check Battery Orientation: Ensure the “+” side of the battery is facing correctly (usually upwards).
- Confirm Battery Door is Closed: Make sure the compartment door has clicked shut completely.
- Try Another Battery: The new battery might be faulty or dead upon arrival. Try a different one from your pack.
- Check Battery Contacts: Gently clean the battery contacts inside the hearing aid and on the battery itself with a dry, soft cloth or a pencil eraser.
- Battery Size: Double-check that you are using the correct size battery for your hearing aid.
Batteries Dying Too Quickly
If you find yourself replacing batteries more often than expected:
- Check for Low Battery Warnings: Are you replacing batteries soon after a low-battery alert, or are they dying unexpectedly?
- Battery Age: Are you using old batteries? Check the expiration date on the packaging. Old batteries lose their charge faster.
- Usage Habits: Are you using features like Bluetooth streaming extensively? Are you leaving the battery door open at night?
- Environmental Factors: Extreme heat or humidity can shorten battery life.
- Dirty Contacts: Corrosion or debris on the battery contacts or inside the compartment can impede power flow.
- Hearing Aid Malfunction: In rare cases, the hearing aid itself might be malfunctioning and drawing too much power. Consult your audiologist if the problem persists.
For more in-depth troubleshooting and maintenance, resources like those from the National Institute on Deafness and Other Communication Disorders (NIDCD) can be very helpful.
Recycling and Disposal of Hearing Aid Batteries
Responsible disposal of hearing aid batteries is important for both environmental protection and safety.
Why Proper Disposal Matters
Hearing aid batteries contain small amounts of metals and chemicals. While less toxic than in the past, they should not be thrown into landfills. Improper disposal can lead to environmental contamination. Also, as mentioned, they pose a serious choking and poisoning hazard to children and pets.
How to Recycle and Dispose
- Audiologist’s Office: Many audiologists offer battery collection and recycling programs. It’s worth asking them when you purchase new batteries.
- Battery Recycling Centers: Larger communities have dedicated battery recycling facilities. Search online for “battery recycling near me.”
- Retail Take-Back Programs: Some electronics stores or large retailers have drop-off points for small batteries.
- Mail-In Programs: Some battery manufacturers or specialized online retailers offer mail-in recycling services.
- Never put in regular household trash: Always use designated disposal or recycling methods.
Frequently Asked Questions About Hearing Aid Batteries
Q1: How long does a hearing aid battery typically last?
A1: This varies based on battery size, type, and your hearing aid’s power consumption. Generally, disposable zinc-air batteries can last anywhere from 3 to 20 days. Size 10 batteries are the shortest-lasting (3-5 days), while size 675 batteries can last 10-20 days. Rechargeable batteries are designed to last a full day on a single charge.
Q2: What is the difference between the colored tabs on hearing aid batteries?
A2: The colors represent different battery sizes: Yellow for Size 10, Orange for Size 13, Brown for Size 312, and Blue for Size 675. Each size is for a different type or power level of hearing aid.
Q3: Can I use any brand of hearing aid battery?
A3: While most reputable brands are fine, it’s best to use the brand recommended by your audiologist or hearing aid manufacturer. Consistency in quality can ensure optimal performance. Always ensure you are using the correct size and type.