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Keyboard without USB: Logitech Signature Slim Solar+ supposedly lasts 10 years but can't be charged via cable

The Logitech K980 charges via solar, even without direct sunlight (Image source: Logitech)
The Logitech K980 charges via solar, even without direct sunlight (Image source: Logitech)
Logitech's latest solar keyboard apparently has a battery life of ten years, even if the solar cells never see direct sunlight. In combination with particularly durable switches, the keyboard should have a long lifespan, but the lack of a USB port is rather controversial.

With the Signature Slim Solar+ K980, Logitech has unveiled a new keyboard that is charged by built-in solar cells, which even work with artificial light with at least 200 lux. Once the integrated battery is fully charged, the keyboard can be used for up to four months in complete darkness.

According to Logitech, the keyboard has a lifespan of ten years under normal office lighting conditions before the battery reaches the end of its life. The battery can then be replaced by the user, and replacement parts will be sold through iFixit in the future. It is fairly unusual that Logitech has completely omitted a USB-C port, so it is not possible to charge the keyboard via cable or to use it as a wired keyboard. Computers can be connected via Bluetooth or the Logi Bolt USB receiver, which has to be bough separately.

Each switch of the membrane keyboard has a lifespan of ten million keystrokes. The Logitech keyboard is compatible with both Windows and macOS, symbols for both operating systems are included. To see if there is enough light to charge the keyboard, users have to use the accompanying Logitech Options Plus app, which can configure many keys.

Price and availability

The Logitech Signature Slim Solar+ keyboard is now available for $99 at Logitech's online store and on Amazon. It’s only available in dark gray. 

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 09 > Keyboard without USB: Logitech Signature Slim Solar+ supposedly lasts 10 years but can't be charged via cable
Hannes Brecher, 2025-09-24 (Update: 2025-09-24)