The Kärcher Window Vac WV 6 Plus is a cordless electric window cleaning device designed to remove water and cleaner solution from windows without leaving streaks—essentially an automated squeegee. It's positioned as a mid-range solution between cheap manual tools and premium smart home cleaning systems.
What impressed me most was the runtime. A 100-minute battery is genuinely useful; you can tackle an average three-bedroom house without needing a top-up. The 280mm suction nozzle is wide enough to be efficient without becoming unwieldy. The unit feels reasonably lightweight, which matters because you're holding it at arm's length for extended periods. The included spray bottle and microfibre cloth are decent basics, and the 20ml window cleaner concentrate gets you started immediately.
The LED battery indicator is a small but practical touch—no guessing whether you've got 5 minutes or 50 left. The suction mechanism is quiet compared to what I'd expected from an electric device.
Some considerations: the 280mm width means you'll still need multiple passes on larger panes compared to professional-grade equipment. The concentrate isn't particularly generous, so you'll be restocking fairly quickly if you use it regularly. There's no adjustable suction power, which means it works on a one-size-fits-all basis—fine for most windows, but less versatile than premium models. Storage could be trickier if you're tight on space.
At £52.49, this represents solid value against the original £91.66 price tag. It genuinely outperforms manual squeegees, and the battery life justifies the cordless format. It's ideal for homeowners who clean windows quarterly rather than professionally, or anyone who values the time saved over manual labour. I'd recommend it.