Generally, there are two types of hearing aid batteries: disposable zinc-air batteries and rechargeable batteries.
Disposable zinc-air batteries
Zinc-air batteries use air as an energy source and are activated by oxygen when you remove the tab attached to the battery. Disposable zinc-air batteries are available in four sizes and work with many types of hearing aids.
Rechargeable batteries
Rechargeable batteries for hearing aids are most often lithium-ion batteries that need to be charged regularly for three to four hours. Because they are reusable, rechargeable hearing aid batteries are more environmentally friendly than disposable batteries. However, rechargeable batteries also have drawbacks, such as the user being without a hearing aid while charging and the need to carry a charger when travelling. Many hearing aid models come with their own rechargeable batteries.
Disposable zinc-air batteries or rechargeable batteries
Disposable zinc-air batteries are available in large quantities, are easily replaced by the user and are suitable for more types of hearing aids than rechargeable hearing aid batteries. On the other hand, rechargeable batteries are better for the environment and possibly more cost effective in the long run since you don’t regularly throw them away. Rechargeable batteries can also hold their power longer than zinc batteries if you’re using Bluetooth and streaming services, and they’re easier to handle than smaller button batteries. However, some types of hearing aids are not suitable for the use of rechargeable batteries.
Hearing aid battery manufacturer Power One recommends that customers check if their hearing aids can hold power for 10 days without having to replace zinc batteries. If so, the hearing aid may be compatible with a rechargeable battery. Consult your hearing care professional or hearing care professional for help choosing the best battery for your hearing aid.
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