Product Model WJS-XD1 Lithium-ion Battery 24V 40AH Lead-acid Battery 24V 32AH Working Efficiency 1272m/h Rated Power 550W Water Suction Width 480mm Floor Cleaning Width 480mm Dirty/Clean Water Tank 12L/13L Floor Cleaning Motor 250W Water Suction Motor 300W Brush Pressure 27KG Lead-Acid Battery Operating Time 1.5h Lithium-Ion Battery 2.5h Charging Time 4-5h Noise Level 65dB