Kärcher Window Vac Repair / How to Open / Karcher Battery Replacement - YouTube
Karcher WV 1 Plus Window Vacuum Squeegee - Also Perfect for Showers, Mirrors, Glass, & Countertops - 10 in. Squeegee Blade 1.633-041.0 - The Home Depot
User manual Kärcher WV 2 plus (English - 72 pages)