Fixed] No LED light on Logitech K750 Keyboard – Rob's Blog
Logitech K750 Wireless Solar Powered Keyboard
Opening Battery holder for the Logitech k750 Solar Keyboard - YouTube
Logitech K750 Solar Keyboard Repair - iFixit
Amazon.com: Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black : Electronics