Logitech has returned to solar-powered keyboards after more than a decade with the Signature Slim Solar+ K980, a $179.95 keyboard that operates entirely on light power without USB charging ports or replaceable batteries.

The K980 uses Logitech’s proprietary Logi LightCharge technology to convert both solar and artificial light, minimum 200 lux, into power for its battery, which the company claims will last up to 10 years.

Once fully charged, the keyboard can operate in complete darkness for up to four months.

The K980 represents Logitech’s first solar keyboard since the K760 over a decade ago.

Unlike its predecessor’s playful LED indicators showing charging status, the new model uses a simpler green-to-red power LED.

Users wanting detailed charging information must use the Logi Options+ app, which displays whether ambient light levels are sufficient for charging.

The battery is user-replaceable through iFixit, with Logitech spokesperson Melvin Dilanchian confirming to The Verge that it’s “safely user-replaceable (because it’s encased in a plastic casing), with spare parts supplied by iFixit.”

This addresses a common concern with sealed devices dependent on rechargeable batteries.

The full-size keyboard includes standard features like Windows/macOS key labels, directional keys, and numpad, plus modern additions including an AI Launch key that defaults to Windows Copilot or ChromeOS Gemini.

Users can customise it through Logi Options+ to launch ChatGPT, an AI prompt builder, or assign Smart Actions for tasks like Perplexity searches.

Additional programmable keys include an Action key (marked with a large O), mic mute, camera toggle, and customisable function row for media control, screen brightness, and volume.

The keyboard supports pairing with three Bluetooth devices via Easy-Switch keys and works with Logitech Bolt USB transmitters, though none is included.

The graphite version incorporates 70% certified post-consumer recycled plastic, aligning with Logitech’s Design for Sustainability principles.

The 10-year battery lifespan eliminates frequent replacements, reducing electronic waste compared to traditional wireless keyboards requiring regular battery changes.

Art O’Gnimh, General Manager of Core Products Group at Logitech, stated, “Even the need to think about charging can be a distraction, so we designed Signature Slim Solar+ to take that off your plate completely. It stays powered by light, any light, clearing your desk of cables.”

Logitech offers a business variant at $189.95 including a Logi Bolt USB-C receiver for secure connectivity in high-density environments.

IT teams can monitor devices through Logitech Sync, viewing product and firmware status centrally. Employees can customise up to 23 shortcut keys without adding IT complexity.

The K980 faces competition from Lenovo’s recently launched self-charging wireless keyboard shown at CES 2025.

Lenovo’s model includes features absent from the K980, adjustable legs for tilt, spill-resistant design, and USB-C charging port as backup, though it lacks Logitech’s extensive customisation options.

Key features include:

  • Logi LightCharge technology requiring minimum 200 lux
  • Four months operation in darkness when fully charged
  • Laptop-style scissor-switch keys
  • Multi-OS printed layout (Windows/ChromeOS)
  • Compatible with Logitech Flow when paired with supported mouse
  • 10-year battery lifespan

Available globally from September 24, 2025, the Signature Slim Solar+ K980 sells for $179.95 for the universal version and $189.95 for the business variant through Logitech’s website and authorised retailers including Amazon and Best Buy.

At $179.95, the K980 targets users prioritising cable-free desks and minimal maintenance over advanced ergonomics.

The lack of adjustable legs and spill resistance may concern some buyers, while the solar charging novelty and 10-year battery life appeal to sustainability-conscious consumers.

The keyboard’s success depends on whether users value eliminating charging routines enough to pay premium pricing compared to traditional wireless keyboards requiring occasional battery replacement or USB charging.

For office workers in well-lit environments, the promise of never thinking about power could justify the investment.