Solar Powered Hearing Aid

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A major problem in developing countries is not only the cost of hearing aids for hearing impaired people but also the operating costs in the form of hearing aid batteries. The solar-powered hearing aid recharges hearing aid batteries through solar power and is aimed especially at developing countries. A hearing aid battery which lasts for 1 week costs $2 or $96 annually. People would rather buy bread than buy hearing aid batteries. See this clip.

Deaftronics’s solar-power hearing aid battery charger and rechargeable batteries allow for the reuse of hearing aid batteries,

Project description

What problem are you trying to solve?
Getting a child a hearing aid at an early age will enable this child to be mainstreamed into a local school, develop speech, thereby affording this child an education and a chance to break the cycle of poverty which without a hearing aid would be virtually impossible. Unlike all other hearing aid companies who supply hearing aids only, this project will be selling a complete package. Included in the price of hearing aid will be a solar charger and a package of 2 rechargeable batteries. The consumer will have all that is required for the next two to three years for their hearing aid. We will supply four batteries, because like eye-glasses, consumers often need two hearing aids. There will be many consumers who will buy only a solar charger and batteries for their present hearing aid, which cannot be recharged but wish to save money on the purchase of batteries. It will also save the consumer transport costs to store, which can be substantial in rural areas of developing countries.

What is your solution to this problem?
Deaftronics’s solar-power hearing aid battery charger and rechargeable batteries allow for the reuse of hearing aid batteries, greatly reducing the harm to the environment by dramatically reducing the disposal rates of batteries. Further, the charger uses the free and clean energy of the sun, as opposed to electricity or other resource-consuming energy sources. If used with most new hearing aids sold in developing countries for the next twenty years, Deaftronics’s new universal charger will prevent the utilization and disposal of at least 10 million batteries in the will also offer an accessible energy source for hearing aid to people location in rural areas, where batteries are difficult to find and expensive.

What is your latest update on your innovation?
Deaftronics, in conjunction with developers, is developing a low cost, simple to use, Android smartphone based, open source, OAE testing device, for babies and infants called Baby Ears Deaftronics is in the final stages of developing two screening apps for infants and children, Open-field play audiometry and Binaural Tonal audiometry.
These 3 apps will offer not only offer the first complete screening programs for those most at risk but also will enable us to involve secondary healthcare workers and microentrepreneurs as well at Deaftronics locations and partners to implement these programs globally.


Sarah Phiri

Tendekayi Katsiga

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