Hearing Aid Batteries

I. Understanding Hearing Aid Battery Types:

Hearing aid batteries come in different sizes, denoted by number codes such as 10, 312, 13, and 675. The most common battery sizes are colour coded, making it easier to identify the right battery size for your specific hearing aid model.

The most common type of hearing aid batteries are zinc-air batteries. These batteries are often referred to as the powerhouse of hearing aid batteries due to their high energy density and long-lasting performance. They are activated by removing the tab, allowing air to enter and activate the battery.

Additionally, rechargeable batteries are gaining popularity as a convenient and eco-friendly alternative to traditional disposable batteries.

Here are the most common types of hearing aid batteries:

Size 10 (Yellow): These batteries are small and typically used for smaller behind-the-ear (BTE) and completely-in-canal (CIC) hearing aids. They have a shorter lifespan due to their size but are suitable for devices with lower power consumption.

Size 312 (Brown): These batteries are slightly larger than size 10 batteries and are commonly used in in-the-ear (ITE) and receiver-in-canal (RIC) hearing aids. They offer a longer lifespan and are suitable for devices with moderate power requirements.

Size 13 (Orange): These batteries are larger than size 312 batteries and are often used in BTE and RIC hearing aids. They provide a longer lifespan and are suitable for devices with higher power demands, including those with advanced features like wireless connectivity.

Size 675 (Blue): These batteries are the largest among common hearing aid batteries and are primarily used in high-power BTE hearing aids. They have an extended lifespan and are suitable for devices with the highest power requirements, including those with additional features like telecoil functionality.

II. Factors to Consider When Choosing Hearing Aid Batteries:

a. Battery Life: Maximising Usage Time

Battery life is a crucial consideration when selecting hearing aid batteries. Battery life varies depending on factors such as battery type, device power requirements, and usage patterns. Generally, larger batteries tend to last longer than smaller ones. Check the manufacturer’s specifications for estimated battery life. Opting for batteries with longer life ensures uninterrupted hearing experiences and reduces the frequency of battery changes.

b. Device Compatibility: Ensuring the Batteries Match Your Hearing Aid Model

Each hearing aid model has specific power requirements and is designed to work with certain battery sizes. It is crucial to check your device’s user manual or consult with your audiologist to determine the compatible battery sizes for your hearing aids. Using the wrong battery size can result in inadequate power supply or damage to your device.

c. Power Needs: Determining the Right Battery Size for Your Hearing Aid

The right battery size for your device depends on its power needs and physical dimensions. Smaller hearing aids typically require smaller batteries, while larger behind-the-ear (BTE) models may need larger batteries for extended power.

d. Environmental Considerations: Adapting to Humidity and Temperature Extremes

Environmental factors can impact the performance and lifespan of hearing aid batteries. Humidity, extreme temperatures, and exposure to moisture can affect battery efficiency and longevity. High humidity can cause batteries to discharge more quickly, while extreme cold temperatures can reduce their performance. Store batteries in a cool, dry place and avoid exposing them to excessive moisture or extreme temperature conditions. Additionally, some hearing aid batteries feature special coatings or packaging designed to withstand environmental challenges.

III. Tips for Extending Hearing Aid Battery Life

a. Proper Storage: Keeping Batteries Fresh and Long-Lasting

To ensure the freshness and longevity of hearing aid batteries, proper storage is essential. Store batteries at room temperature, avoiding extreme heat or cold. Additionally, store batteries in airtight containers or original packaging to help prevent moisture buildup.

b. Open vs. Sealed Packaging: Which Is Best for Battery Preservation?

Hearing aid batteries are commonly available in both open and sealed packaging. Open packaging allows air to activate the batteries, while sealed packaging ensures maximum freshness until they are ready for use. When purchasing batteries in bulk, sealed packaging is preferred to maintain their full potential. However, if you use batteries frequently, open packaging allows you to conveniently access and activate them as needed. Remember to check expiration dates and use the oldest batteries first.

c. Power-Down Techniques: Conserving Battery Life When Not in Use

When removing your hearing aid, open the battery compartment or switch it off to prevent unnecessary power drainage. Some hearing aids have dedicated power buttons, while others require you to open the battery door fully to disconnect the circuit. This will extend your hearing aid battery’s life.

d. Regular Maintenance: Cleaning and Inspecting Battery Contacts

Over time, debris, moisture, and earwax can accumulate on the battery contacts, hindering proper electrical connections. Regularly inspect the battery contacts in your hearing aid and clean them using a soft, dry cloth or a specialised cleaning tool recommended by your audiologist.

IV. Step-by-Step Guide to Changing Hearing Aid Batteries

a. Safety Precautions: Handling Batteries with Care

When changing hearing aid batteries, it’s important to follow safety precautions. Wash and dry your hands thoroughly before handling batteries to prevent contamination. Avoid touching the battery contacts directly to minimize the transfer of oils or dirt. Mishandling batteries or inserting them incorrectly can cause damage to your hearing aids, so ensure you are familiar with the correct battery placement for your specific device.

b. Opening the Battery Compartment: Navigating Different Hearing Aid Designs

Different hearing aid models have varying mechanisms for opening the battery compartment. Some feature slide-out drawers, while others may have hinged doors or removable panels. Refer to your hearing aid’s user manual or seek guidance from your audiologist to understand how to open the battery compartment correctly. Be gentle when opening to avoid any damage to the device or battery contacts.

c. Removing and Disposing of Used Batteries: Eco-Friendly Practices

When removing used batteries, it’s important to handle them properly and dispose of them in an environmentally friendly manner. Many communities have battery recycling programmes to prevent harmful substances from entering landfills. Never throw batteries in regular household waste or burn them.

d. Inserting New Batteries: Ensuring a Secure Connection

Before inserting new batteries, check the battery size and orientation to ensure compatibility with your device. Match the positive (+) and negative (-) symbols on the battery with the corresponding markings inside the battery compartment. Gently insert the battery, making sure it sits securely in place. Close the battery compartment according to your device’s design, ensuring a snug fit that maintains a proper electrical connection. Avoid forcing the compartment closed to prevent any damage.

V. How Often Do Hearing Aid Batteries Need to be Changed?

The frequency of hearing aid battery changes depends on several factors, including the battery size, capacity, the power requirements of the hearing aid, and individual usage patterns. Here are some general guidelines for different battery sizes:

Size 10 (Yellow): These smaller batteries typically have a shorter lifespan, ranging from 3 to 7 days, depending on the power consumption of the hearing aid.

Size 312 (Brown): Size 312 batteries have a slightly larger capacity than size 10 batteries and can last anywhere from 5 to 10 days, depending on the hearing aid’s power demands.

Size 13 (Orange): Size 13 batteries are larger and typically last longer than size 312 batteries. They can provide power for approximately 6 to 14 days, depending on the hearing aid’s power requirements.

Size 675 (Blue): Size 675 batteries are the largest among common hearing aid batteries and have the highest capacity. They can last anywhere from 9 to 20 days, depending on the power consumption of the hearing aid.

These estimates are approximate and can vary based on factors such as the volume setting, the complexity of the hearing aid’s features, and the environment in which the hearing aid is used.

VI. Common Questions and Troubleshooting:

a. “Why Isn’t My Battery Lasting Long Enough?”

Battery life can vary based on factors such as device power requirements, usage patterns, and battery quality. If the battery life of your hearing aid is shorter than expected, consult with your audiologist to ensure your device settings are optimised. Additionally, ensure that any power-draining features, such as Bluetooth connectivity, are disabled when not in use.

b. How do I replace my hearing aid battery?

To replace the battery, follow these steps:

a. Open the battery compartment of your hearing aid according to the manufacturer’s instructions. This may involve sliding a small panel, flipping open a door, or removing a cover.

b. Remove the old battery from the compartment by carefully sliding it out or using a tool designed for battery removal, if provided.

c. Take a new battery and check its size and the correct polarity (+/-) orientation. Make sure it matches the requirements of your hearing aid model.

d. Insert the new battery into the compartment, aligning the positive (+) and negative (-) ends correctly with the corresponding markings or symbols inside the compartment.

e. Gently close the battery compartment, ensuring it securely latches or locks into place.

c. “How Can I Tell When My Battery is Running Low?”

Hearing aids often include low battery indicators, such as beeping sounds or flashing lights, to alert you when the battery is running low.

d. “Can I Use a Different Battery Size in My Hearing Aid?”

Using the correct battery size is crucial for optimal performance. Different hearing aid models are designed to accommodate specific battery sizes, and using a different size can lead to improper fit or insufficient power supply.

e. “What Should I Do If My Battery Gets Wet?”

If your hearing aid battery comes into contact with water or any other liquid, handle it with caution. Remove the battery from the hearing aid immediately and discard it properly. Avoid attempting to use a wet or damp battery, as it can damage your hearing aid. Ensure the battery compartment and contacts of your hearing aid are dry before inserting a new battery.