A photovoltaic keyboard is a wireless computer keyboard that charges its batteries from a light source such as the sun or interior lighting, addressing a major drawback of wireless computer peripherals that otherwise require regular replacement of discharged batteries. The first keyboard that was solar-powered was Logitech K750 that was announced by the company in 2010. In 2018 Microsoft filed a patent describing how solar panels could be used to extend battery life for Microsoft's Surface Pro.
The Logitech K750 has a set of photovoltaic cells on the top edge, charges from any light source including sunlight and under a standard bulb, can work up to three months in total darkness, and includes software to display battery charging status. It is a fullsized keyboard, including the usual movement keys and NumPad section on the right side, with low-profile keys much like a laptop. There are two models, compatible with Windows or Macintosh operating systems.
Even though the keyboard is not officially supported in Linux, a third party application named Solaar provides functionality akin to the original Logitech software, such as battery and connection status indications, and allows device pairing/unpairing.
- "The wireless keyboard that lasts forever without new batteries or recharging is back down to $40". Retrieved March 23, 2020.
- Biggs, Jogn (2011). "Logitech K750 Is The World's First Solar Keyboard". techcrunch.com. Retrieved October 9, 2011.
- Fingas, Roger (2011). "Review - Logitech Wireless Solar Keyboard K750 Review". macnn.com. Retrieved October 9, 2011.
- Clancy, Heather (2011). "Green Gadget of the Week: Logitech solar keyboard for Mac". zdnet.com. Retrieved October 9, 2011.
- "Photovoltaic Wireless Keyboard Test" (in German). Retrieved 2018-06-29.
- "Logitech's Solar Powered Keyboard is Just What We Need". 2010. Retrieved March 23, 2020.
- "Logitech's Latest Innovation: a Wireless Keyboard Powered by Light". 2010. Retrieved March 23, 2020.
- CARNO, DAVID (June 16, 2012). "Logitech Wireless Solar Keyboard K760" (in German). Retrieved 2020-03-23.