Use time: about 40 floors with battery fully charged Warranty: battery and belt one year One person can operate this stretcher. Designed with special track structure, more convenient and safer for transport. It with four wheels is easy for moving on ground. The structure with three pieces of belts approve the patient’s safety during transport process. It is made of high-strength aluminum alloy materials with surface oxidation treatment.Specification: Unfolded Size: 72×54×100cm Folded Size: 100×54×28cm Net Weight: 32KG Gross Weight: 45kgs Packing Size: 113*60*37cm,GW:50KG Motor: DC24V 200W Charge: 220V 50Hz Battery: 24V 13Ah Belt length:1640mm Capacity: over 180kgs Castor sizes: Φ125mm