Battery Replacement Kit for Logitech Bluetooth Illuminated Keyboard k810 with Installation Video, Tools, and Extended Life Battery : Amazon.co.uk: Computers & Accessories
Logitech Wireless Combo MK270 - Keyboard and mouse set - wireless - 2.4 GHz - English - Hunt Office Ireland
Battery 3.7V 1.5Ah LiPo for Logitech MX KEYS Keyboard
Logitech's new iPad keyboard case has a four-year battery life - The Verge
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Logitech Wireless Combo MK270 - Keyboard and mouse set - wireless - 2.4 GHz - English - Hunt Office Ireland