A hearing aid is a miniature device in which sound vibrations are amplified by electrical transducers. For its operation, a continuous supply of electricity is necessary. For this, small batteries are used, which will be discussed in detail in this article.
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Types and types of batteries for hearing aids
Batteries for hearing aids should be small in size, so special batteries are used to provide electric current to devices of this type.
To make it easy to determine whether a battery belongs to one or another type, it is customary to denote them by color. Marking is applied to the packaging, so it is visually easy to determine whether the product belongs to one or another type.
Size 10 (Yellow)
Airborne zinc batteries of this size are marked in yellow on the packaging. Of all the batteries produced for hearing aids, this model has the smallest supply of electric current. Usually, batteries 10 only enough for 7 - 10 days of operation of the device.
Despite the small electric capacity, the battery has an advantage over other batteries, which is used in the most miniature, in-channel models of hearing aids.
Size 312 (Brown)
Replacing batteries of this size is less common than devices with yellow marking. The maximum operating time in sound amplification devices is 12 days, while the size of the product allows the element to be used in in-ear devices without any restrictions.
Identify battery 312 not be difficult, this size is indicated by brown color on the package.
Size 13 (Orange)
The batteries marked in orange on the package can be used in high-power hearing aids. The capacity of the product is 310 mAh, so the battery can last up to 14 days. Especially effective batteries 13 when used in headphone hearing aids.
Size 675 (Blue)
This model has the highest power among batteries designed for installation in hearing aids. With a nominal capacity of 610 mAh and standard load, 675 battery will last for 1 month. This model is used, as a rule, only in powerful devices of ear-type.
All these types of batteries have the same voltage, but significantly differ in capacity, which is in direct correlation with the duration of the battery.
Specifications for hearing aid batteries
| Type of | 10 | 312 | 13 | 675 |
|---|---|---|---|---|
| Colour | Yellow | Brown | Orange | Blue |
| Voltage in | 1,4 - 1,45 | 1,4 - 1,45 | 1,4 - 1,45 | 1,4 - 1,45 |
| Height mm | 3 | 3 | 5 | 5 |
| Diameter mm | 6 | 8 | 8 | 11 |
| Working hours | 7-10 days | 10-14 days | 25-30 days | 25-30 days |
| Device | In-channel | Intra-ear | Behind the ear | Behind the ear |
How to choose the right battery for your hearing aid
It is strictly forbidden to install alkaline and lithium-ion batteries in hearing aids; therefore, it is necessary to pay attention to used zinc products.
Such batteries use oxygen from the air for their work, which allows the power source to discharge very smoothly, while maintaining the rated voltage for almost the entire battery life.
The voltage of the battery for installation in hearing aids is 1.4 volts. To provide the necessary voltage, one battery is enough, which is installed in a special socket.
The battery must be activated before installation.To do this, remove the protective film from the product and wait a few seconds to install the battery in the hearing aid.
For the correct operation of the device, it is necessary to correctly determine the approximate operating time of the device. Thanks to the use of color coding, it is not difficult to select a power source, if you are guided by the information above. In this case, it will be possible to find out when the battery will need replacing without additional product verification.
Can I charge the batteries for my hearing aid?
As you know, you can only charge a source of electricity if the product is a battery. Hearing aids use only zinc-air elements that are not in this category.
Failure to do so may lead to disastrous results, even if you use the so-called “folk” methods of restoring the battery charge.
Recently, rechargeable nickel metal hydride batteries have begun to appear on the market. They, like the batteries, are painted in the corresponding colors and have the same numbering: p10accu, p312accu, p13accu and p675accu.
| Battery marking | p10accu | p312accu | p13accu | p675accu |
|---|---|---|---|---|
| Ananlog batteries | 10 | 312 | 13 | 675 |
| Colour | Yellow | Brown | Orange | Blue |
| Battery Type | Ni-MH | Ni-MH | Ni-MH | Ni-MH |
| Capacity mAh | 12 | 23 | 31 | 74 |
| Diameter mm | 5,8 | 7,9 | 7,9 | 11,6 |
| Height mm | 3,6 | 3,6 | 5,4 | 5,4 |
| Weight gr | 0,3 | 0,6 | 0,9 | 2 |
What to look for when choosing a battery
Even if all the parameters and characteristics, when buying a new battery, were taken into account, there is no guarantee that the battery will last the stated amount of time. To protect yourself as much as possible from acquiring low-quality products, you can only buy products from well-known manufacturers.
The place of purchase is also of great importance. Acquisition of goods by hand, through bulletin boards and in retail outlets with a dubious reputation, can lead not only to a malfunction of the hearing aid, but to significant damage to health.
In order to protect yourself as much as possible, it is recommended to purchase products only at those outlets that can provide the buyer with reliable information about the manufacturer and the quality of the goods.
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