New Sealed Logitech K750 Wireless Solar Keyboard 920-002912 for Windows 695974857684 | eBay
Logitech K750 Wireless Solar Keyboard for Windows, 2.4GHz Wireless with USB Unifying Receiver, Ultra-Thin, Compatible with PC, Laptop - Wireless Connectivity - RF - 33 ft - 2.40 GHz - USB Interface -
Logitech K750 Solar Wireless Keyboard for Mac 920-003472 97855080240 | eBay
Logitech K750 'repair' | Fiddlings
Replacing the Logitech K750 Solar Keyboard Battery with CR2032 or ML2032 – Bits of Advice
Amazon.com: AIYUE ML2032 Rechargeable Battery Replacement for Logitech K750 Keyboard : Health & Household