Karcher Window Vac WV2 Battery Replacement Guide / How To Open & Repair - YouTube
Amazon.com: Harlotte 5.5V Window Vacuum Battery Charger Power Supply Adapter Charger for Karcher WV Series Cleaner WV1 WV2 WV70 Plus WV75 Plus WV55R WV55 WV50 Plus Power Supply Charging Cable Adapter Charger :