Windsor Karcher Lithium Ion Battery For 35-12, 38-12, and 45-22 Scrubbers SKU#WIN6654-2940
Karcher Marine Accessories Battery charger
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EU Replacement Karcher 6.654-351.0 5.5V 600mA Window Vac WV Charger Power Supply 5059424093896 | eBay
Cameron Sino Battery for KARCHER 6.654-258.0 BD0810 fits KARCHER KM35/5 Power Tools Replacement battery 2500mAh / 45.00Wh Li-ion - AliExpress
Amazon.com: Karcher 6.654-353.0 Window Vac 120V Replacement Power Supply : Tools & Home Improvement