Kärcher Cordless patio cleaner PCL 3-18, approx. 20 m² surface power per charge, 2 rolls of brush for wooden surfaces, can be used with Kärcher 18 V battery, without battery : Amazon.com.be:
Kärcher Patio cleaner PCL 4 for wood and stone | 1.644-000.0 - Kärcher Store Schreiber