Learning how to make your hearing aid batteries last longer is a great way to improve your overall hearing experience and can save you a bit of money. Hearing aid battery life can vary quite a bit, many factors influence power consumption, which in turn affects how long hearing aid batteries last.
Hearing aid batteries come in four standard sizes, each identified by a specific color code. These codes not only help users quickly recognize the right battery type but also correspond to certain hearing aid styles. Below is a breakdown of each size, its color, typical device compatibility, and average lifespan:
To get the most life out of your hearing aid batteries, try some of these simple, yet effective tips:
If you use non-rechargeable batteries, wait to remove the sticker until you’re ready to use that battery. Once the sticker is removed, the battery activates and continuously runs. After removing the sticker, wait a few minutes before putting it in your hearing aid. This will allow the hearing aid battery to reach its full activation level.
For most hearing aid batteries, you can minimize power use at night by leaving the battery door open while you sleep.
You can also conserve power by turning off your hearing aids whenever you’re not wearing them, for example, during your daily shower.
The best way to extend the lifespan of batteries is by ditching them altogether.
Some rechargeable hearing aids have a built-in power cell and can last up to 24 hours on a full charge. No batteries to buy or replace. Simply sleep, charge and go.
Hearing aid batteries typically last between 3 to 10 days, depending on several factors. These include the battery type and capacity, how often the hearing aid is used, and the specific make and model of the device.
For instance, behind-the-ear (BTE) hearing aids often use larger batteries, which generally provide longer usage times. In contrast, smaller batteries used in custom or in-the-ear (ITE) hearing aids usually have shorter lifespans.
Rechargeable hearing aids typically last a full day on a single charge, usually between 16 to 30 hours, depending on the model, battery capacity, and how the device is used (e.g. streaming audio may drain the battery faster). As for the long-term battery lifespan, most rechargeable hearing aids use lithium-ion batteries, which can last around 3 to 5 years before they start to lose capacity and may need replacement. Some models use silver-zinc batteries, which may require annual replacement but are often user-replaceable. So:
After a few years, you may need to replace the battery or, in some cases, the entire hearing aid if the battery isn't replaceable.
Maximizing your battery life doesn’t require much effort—small changes in daily habits can make a significant difference. Here’s how to get the most out of your batteries:
Storing hearing aid batteries in the refrigerator is a common myth, but it doesn’t extend their lifespan. In fact, cold and damp environments can damage batteries, reduce their voltage, and affect performance. Zinc-air batteries, commonly used in hearing aids, are particularly sensitive to moisture, which can activate them prematurely or cause corrosion.
For best results, store batteries at room temperature in a dry place away from heat and humidity. Avoid storing them in bathrooms, kitchens, and refrigerators. Keeping batteries in their original packaging until use also helps preserve freshness. Proper storage ensures your hearing aid batteries deliver reliable and consistent power.
Charging time for hearing aids depends on the model and battery type, but most rechargeable hearing aids take between 3 to 5 hours to reach a full charge. Many models can provide up to 30 hours of use on a single charge, making overnight charging a convenient option. Some devices also offer quick-charge features, delivering several hours of use with just a short 15–30-minute charge. To ensure optimal battery health and performance, it’s best to follow the manufacturer’s charging instructions. Using the official charging dock or case provided with the hearing aids helps maintain consistent, reliable charging over time.
Yes, hearing aids with rechargeable batteries are generally more moisture resistant than those using disposable batteries. This is because rechargeable hearing aids are typically designed with sealed battery compartments, which helps prevent moisture, dust, and debris from entering the device. In contrast, disposable battery compartments need to be opened frequently, increasing the risk of moisture exposure.
Additionally, many rechargeable models come with protective coatings and moisture-resistant housing, offering better overall durability. While no hearing aid is completely waterproof, rechargeable devices often hold up better in humid environments or during an active lifestyles. Still, using a dehumidifier overnight is recommended for all types.
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