Battery suitable for Karcher WV50 plus - 2900 mAh 3.7 V battery (Blue) - BatteryUpgrade
Amazon.com: XUNNENG Battery 4.633-083.0 Replacement for KARCHER WV 50, WV 55, WV 5 Window Vac, Portable Power Tool Battery : Tools & Home Improvement
Window Vac Vacuum Battery Charger Power Supply For Karcher WV50 WV75 Cleaners | Walmart Canada
Karcher WV 6 Plus Window Vacuum Squeegee - Also Perfect for Showers, Mirrors, Glass, & Countertops - 11 in. Squeegee Blade 1.633-512.0 - The Home Depot
Cameron Sino Battery For Karcher 4.633-083.0 Fits Karcher Wv5 Wv7 Wv 50 Wv 60 70 Power Tools Replacement Battery 2000mah/7.40wh - Rechargeable Batteries - AliExpress