How long do batteries last in a hearing aid?

Communicating with patients on how to correctly manage their expectations on battery life is an important topic. We get many questions about how long do batteries last in a hearing aid. The truth is that there is no one answer. That is because every person is unique when it comes to the degree of hearing loss, their personal listening environments, and how they use the device.

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All of these factors combined to make a person’s hearing loss as unique as their fingerprint. Therefore, no one patient is going to have exactly the same battery life as another. We want to educate you, your staff, and your patients on these factors to help them better understand the reason that there are differences in hearing aid battery life.

Factors

• The first factor that affects battery life is an individual’s hearing loss. As the severity of hearing loss increases, the hearing instrument is required to amplify sounds more, which increases the amount of current that the hearing instrument requires, which logically reduces battery life. And the individual’s severity of the hearing loss is a large factor.
• The second factor is the battery size. The hearing aid market is shifting towards smaller devices. Logically, the smaller the device, the smaller the battery needs. As a battery’s physical size decreases, so do the amount of the zinc that can fit inside the battery. We talked about how important the amount of zinc is. The more zinc in the battery, the longer it will last. Look at the size difference between a size 10 and a size 675 battery. The 675 can hold more zinc and therefore, lasts longer.
• The third factor that affects battery life is an individual’s hearing aid usage. How many days do they wear? We all know some patients wear hearing aid every day, yet we know others at the opposite end of the spectrum who might only wear their hearing aid on Sunday morning for an hour. People love to talk about getting so many days’ worth of life out of their batteries. Yet to one person, a day is 8 hours and to another person, a day is 16 hours.

Here is an example why is important to get an accurate estimate of a person’s usage to understand how long a battery can last. Let’s say Person X gets five days out of their hearing aid battery and Person Y gets seven days. Which hearing aid battery lasts longer? To answer that correctly, you need more information. Assume Person X wears their hearing aid 16 hours a day, but Person Y only wears it 8 hours a day. The correct answer then would be Person X, because they got 80 hours out of their battery versus 56 hours for Person Y. Getting enough information is important. When talking to patients about battery life, use a common measurement of time, such as hours instead of days, to get an accurate picture of battery life.

Care and maintenance tips to extend the life of battery:

• Keep your batteries sealed till the time you use it.
• Try to you the oldest pack of batteries first.
• Be cautious after removing the label because they tend to lose power.
• Batteries when placed in a cool climate last for a longer period of time.
• Before removing the hearing aid battery try to remove the tab first and leave it for some time.
• Always wash your hand before replacing your battery.
• If you are not going to use your hearing aid for the longer period of time Then you must remove the battery from your hearing aid. As this is going to protect your hearing aid from corrosion.
• Try to make use of hearing aid dehumidifier. Dehumidifiers and dry storage kits will help you to protect your battery and hearing aid both.

Life of Battery

The battery of hearing aid can be last long to 20 days based. Basically, it depends on the person. For how much time the person is using the hearing aids. The smaller battery has a shorter life than the larger battery

The average lifespan of hearing aid batteries

• The Size 10 batteries are longer for 3 to 8 days.
• Size 13 batteries are longer for 6 to 15 days.
• The Size 312 batteries last up for 3 to 10 days.
• Size 675 batteries last up for 9 to 20 days.

Extend the life of a hearing aid battery

While there are no silly ways to extend the battery life, these suggestions will ensure that the power is not wasted.

If you do not have any use, turn off hearing aids and leave the battery compartment open at night. Not only will this help save battery power from waste, but it will also allow any moisture that will evaporate overnight using the day.

To get optimum performance from your battery, always store them at room temperature. Battery life will be reduced in heat exposure and moist environment such as bathrooms. In addition, the battery should not be kept loose in a pocket, a purse or a bag, where they can come in contact with other metal objects such as coins or keys which can short-circuit and damage the hearing aid battery.