Rechargeable batteries are the mainstay of the electronic devices most of us use in our daily lives. It’s increasingly more natural in this day and age for people to watch a cellphone’s charge indicator, or a car’s gas gauge, with the same sense of self preservation; when either of them read below half we naturally start looking for a pump or a plug-in and refill/recharge the amount of energy we have available to us. However, we do not find searching for a place to change, and then properly dispose of dead zinc-air hearing aid batteries, anything but an intrusion.
But for most hearing aid users, keeping a charge in their hearing devices is far from natural, or easy. The incidence of hearing loss increases with age, as does dexterity loss, arthritis, and host of other conditions that can make changing tiny hearing aid batteries difficult, and for some a down-right painful task, and one that comes up all too often. Many modern digital hearing aids go through at least one zinc-air battery per week. To power a pair of digital hearing aids for one year it can take well over 100 zinc-air batteries, or only 4 of today’s rechargeable batteries.
At least in the past years that ratio has been a rule of thumb, but as digital hearing technology improves, adding more ways of processing sound to make speech clearer - power consumption increases and shortens conventional battery-life. Conversely, rechargeable battery technology is rapidly advancing; rechargeable energy cells are getting less expensive and holding energy more efficiently to keep pace with the demand from the electronics industry as a whole.
Eco-Friendly -Nickel-metal hydride (NiMH) cells provide the steady power hearing aids require. A longer life and fewer dangerous heavy metals than most other hearing aid batteries make NiMH cells safer to use and more environmentally friendly than other hearing aid batteries.
Comfort and Ease of Use - Hearing aids utilizing rechargeable batteries are much easier for elderly wearers, or anyone that experiences difficulty manipulating small objects, to use.
Confidence and Peace of Mind - Starting the day with all our personal electronic devices fully charged has become a natural part of modern life. Rechargeable hearing aids relieve the stress of worrying about a battery going dead during a busy day.
Cost and Convenience – Over the four years that most people keep a pair of hearing aids the cost of conventional batteries will be over $400. The cost of a four-year supply of rechargeable batteries and a charger can be about $300, which shows the cost of rechargeable batteries is more than competitive, but it’s the time saved and convenience of only changing batteries once or twice a year that makes rechargeable hearing aids the wave of the future.