The SolarAid is a hearing aid designed and built by Godisa Technologies, a Botswana company founded to make low-cost hearing aids for the developing world. The SolarAid system combines a small hearing aid and a lightweight solar charger; Godisa developed the first No. 13 rechargeable button battery for the system. Godisa is Africa's only hearing aid manufacturer, and the only one in the world making hearing aids specifically for the sub-Saharan Africa environment.
The SolarAid, including the solar charger and an extra pair of batteries, sells for less than $100, and is built to last at least two to three years. But, as low cost as that is, Godisa wants to do even better: they want to make the design free to everyone -- essentially, to go open source -- if the Botswana government will let them."
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