The keyboard doesnt feature a USB port or swappable batteries and can only be powered by light, whether that the sun or artificial light that hits 200 lux at a minimum. 200 Lux is considered moderately bright lighting, so most lights especially those in an office should be able to hit this brightness level. Logitech states that the keyboard internal battery is capable of lasting up to 10 years and that even when it left in complete darkness, the K980 battery can last for four months, so as lon
