9
Owner’s Manual EN
3. Technical data and noise data
3.1 Technical data
Type WR142E WR143E WR145E WR146E WR153E WR154E WR155E WR156E (100-199 -
designation of machinery, representative of Robotic Lawnmower)
WR142E WR145E WR143E WR146E WR153E WR154E WR155E WR156E
Rated voltage 20V
Max.*
No load speed 2800/min 2200/min
Cutting area 700m
2
1000m
2
1500m
2
2000m
2
Cutting diameter 18cm 22cm
Cutting height 30-60mm
Cutting height positions 4
Battery type Lithium-ion
Battery model WA3553 WA3556
Charging time approx. 3hrs 1.5hrs 1.2hrs 1.5hrs
Charger model WA3755.1/WA3750.1 WA3751/WA3762
Charger rating
Input:
100-240V~50/60Hz,
38W,
Output: 20V, 1.5A
Input: 100-240V~50/60Hz, 90W,
Output: 20V, 3.0A
Machinery weight 9.4kg 9.4kg 10.5kg 10.5kg
Protection degree III
App Y
Frequency band of
embedded WLAN module
2.412GHz-2.484GHz
Max. radio-frequency power
of embedded WLAN module
802.11b:+16±2dBm(@11Mbps)
802.11g:+14±2dBm(@54Mbps)
802.11n:+13±2dBm(@HT20,MCS7)
*Voltage measured at no load. Initial battery voltage reaches maximum of 20 volts. Nominal voltage is 18 volts.