Husqvarna Automower® 550 Safety Equipment Typical mow time on one Typical mow time on one charge 100 min (146m2 per hr) it ensures smooth operation in natural working posture 970 65 65 06 Grey Sound level perceived 67 dB(A) Protection Index (IP Code) IPX4 Battery type Li Ion Battery capacity 10 Ah Charging current 7 A Typical mow time on one charge 270 min Typical charging time 60 min Mean energy consumption per month at maximum use 23 kWh Cutting System Cutting system 5 pivoting razor blades Cutting height max 60 mm Cutting height min 20 mm Cutting width 24 cm Cutting height adjustment Electric Skid plate Yes Dual cutting direction Yes Control User Interface Professional User Interface App Display None Connectivity Bluetooth®