Cordless lawn mower electric lawn mower cutting width 34 cm max lawn area 300 m min cutting height 25 mm max cutting height 75 mm cutting height steps 6 positions battery voltage 48 v battery capacity 2 ah type of battery li ion discharge rear discharge grass box capacity 35 litres front wheel diameter 140 mm rear wheel diameter 170 mm start system electric start features central cutting height adjustment safety feature engine stop blade brake