Logitech K750 Keyboard ML2032 to CR2032 Battery Conversion
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Black : Electronics - Amazon.com
Replacing Battery in the Logitech K750 Solar Keyboard (Step by Step) - YouTube
Replacing Battery in the Logitech Wireless Solar Keyboard K750 (How To) - YouTube