Power that impresses: The WV 4-4 Plus window cleaner features a replaceable battery for endless runtime without interruptions, an LED battery status indicator, and its innovative silicone lip that allows for cleaning windows right down to the edge. The smart combination of spray bottle and microfiber cleaning pad, along with the suction function of the window vacuum, ensures sparkling clean windows – without streaks or residues. All other smooth surfaces can also be cleaned effortlessly. The window cleaning with the ergonomic Kärcher battery window vacuum WV 4-4 Plus is particularly hygienic, as there is no direct contact with dirty water even during tank emptying and cleaning. The 4 V Kärcher Battery Power replaceable battery is not included. Perfect compatibility with all 4 V Kärcher Battery Power devices.