Logitech today introduced a wireless keyboard that never needs to be plugged in or have its batteries swapped, as long as there's a light on in the room. The Signature Slim Solar+ K980 uses a strip of photovoltaic cells to sip power from ambient light — enough to keep it running for an estimated four months in total darkness once fully charged. Logitech claims the internal rechargeable battery is designed to last up to 10 years, and the keyboard sells for $99.99.
The Sun Becomes Your Power Cord
The K980's most striking feature is what it lacks: a USB charging port. On the consumer version, there's nowhere to plug in a cable. The only way to feed the keyboard is through its built-in LightCharge strip, a bar just above the function keys that harvests both sunlight and artificial light. Logitech says the board needs a minimum of 200 lux — roughly the brightness of a well-lit office or a desk near a window on a cloudy day — to maintain its charge. In darker settings, an indicator light and the companion Logi Options+ app will warn you if light levels dip too low.
When fully topped off, the battery can supposedly power the keyboard for four months in the dark. Real-world battery life will vary. The keyboard's power draw depends on how much you type, whether you use the AI key heavily, and the ambient temperature. Logitech's 10-year cell lifespan is a projection, not a guarantee. The company points to iFixit as a source for replacement parts, but swapping the battery requires opening the plastic housing — not a quick swap of AAs.
A Full Layout with AI on Tap
Physically, the K980 is a slim, low-profile keyboard with scissor-switch keys, similar to a laptop. It includes a number pad and a set of dedicated shortcut buttons: microphone mute, camera toggle, and an Action key that you can program through Logitech's Options+ software. The most forward-looking key, however, is the new AI Launch key. On Windows PCs, pressing it fires up Microsoft Copilot. On ChromeOS, it summons Gemini. If you prefer a different assistant, you can remap the key to open ChatGPT, Perplexity, or any other application using the Options+ app.
The keyboard supports Bluetooth pairing with up to three devices, and it has printed legends for both Windows and macOS. Logitech also offers a Business SKU that includes the company's Logi Bolt wireless dongle for more secure connections and compatibility with Logitech Sync for remote fleet management.
What This Means for You
How you react to the K980 depends on your workspace and your tolerance for tradeoffs.
For Home Office Workers and Minimalists
If you sit near a window or in a brightly lit room, the K980 could free you from charging cables for years. The solar panel is a set-it-and-forget-it feature that quietly tops off the battery during the day. You'll never need to scramble for a cable before a meeting. The multi-device pairing also makes it easy to switch between a desktop, laptop, and tablet.
But you'll need to keep the keyboard exposed to light. Tucking it under a stack of papers or in a dark drawer for long periods will drain the battery. And if the battery does die, there's no fallback — you can't use it while charging over USB. That single point of failure might make some users nervous.
For IT Managers and Business Buyers
The Business SKU, with Logi Bolt and Sync support, looks attractive for fleets. Theoretically, IT departments could deploy hundreds of these and never worry about battery replacements or charging docks. But the K980's reliability will need to be proven first. Logitech's earlier solar keyboard, the K750, saw batteries that swelled or failed after a few years, even though the solar panel still worked. The K980's battery is user-replaceable, but the procedure is more involved than changing remote-control batteries. IT teams should test a few units long-term before committing to a mass rollout.
Also, the lack of a wired backup means a dead battery equals a dead keyboard, which could disrupt workflows if spares aren't on hand. On the plus side, the recycled plastic body (up to 70% post-consumer content) may help meet corporate sustainability goals.
For Power Users and Tinkerers
The remappable AI key and Action key will appeal to those who automate workflows. With Options+, you can assign complex macros to the Action key and even launch custom scripts. The solar panel is a bonus, but the typing feel might not satisfy everyone. Early hands-on reports describe the scissor switches as "squishy" compared to Logitech's own MX Keys line. If you're a heavy typist who demands crisp, mechanical feedback, the K980 may not replace your main board. But for a secondary or travel keyboard, its cable-free life and multi-OS support make a compelling case.
How We Got Here: A Brief History of Solar Keyboards
Logitech already has a track record with light-powered keyboards. In 2010, it released the K750 Wireless Solar Keyboard, a full-size board with a solar strip and a coin-cell backup. The K750 worked well but relied on replaceable coin cells and sometimes suffered battery degradation after long service. Other companies, like Samsung and even startup brands, dabbled in solar keyboards, but none captured significant market share.
The K980 improves on the formula by integrating a rechargeable lithium cell that's designed to last the lifetime of the product, rather than disposable button cells. Logitech also adds modern connectivity (Bluetooth vs. the K750's proprietary dongle) and enterprise manageability. The shift to a sealed rechargeable battery, however, introduces a new failure point compared to the easily swappable coin cells of old.
The rise of hybrid work and a growing emphasis on sustainable tech have pushed peripheral makers to reduce e-waste. Logitech's use of recycled plastic and a maintenance-free power source aligns with those trends, and the $99.99 price — lower than many premium mechanical keyboards — makes solar power accessible to a broader audience.
Should You Buy the K980? Practical Tips
Your decision comes down to how much you trust Logitech's battery claims and whether you can live without a USB port.
Who should buy it:
- You work in a consistently lit environment and want to eliminate battery changes.
- You split your time between multiple computers and value Bluetooth easy-switch.
- You're curious about the AI Launch key and use Copilot or Gemini regularly.
- You appreciate sustainable tech and recycled materials.
Who should skip it:
- Your desk is in a dim corner, or you frequently work in dark rooms.
- You need a reliable wired fallback for critical tasks.
- You're picky about key feel and prefer mechanical switches or the more solid feel of Logitech's MX Keys.
- You want a keyboard that's completely user-serviceable without any disassembly.
Setup advice:
Place the K980 where it gets steady light, even indirect daylight. Install Logi Options+ to monitor the light-level indicator and customize the Action and AI keys. If you're buying for an organization, opt for the Business SKU with Logi Bolt and Sync, and keep a few spares on hand for potential battery failures.
The Outlook: Is Light-Powered the Future?
Logitech's gambit with the K980 is to make solar charging invisible, a background feature that users don't have to think about. Whether that gambit pays off depends on real-world endurance and how gracefully the battery ages. The absence of a USB port is a philosophical choice: Logitech is betting that the solar panel and battery will be reliable enough that you won't miss a cable. If that bet proves solid, the K980 could set a new standard for office peripherals — a keyboard that quietly works for years with near-zero maintenance.
For now, the K980 is a promising, if slightly risky, step toward a wire-free, worry-free desktop. As always, the proof will be in the long-term testing.