18
Cordless Lawn Mower  EN
CUTTING AREA
The cutting area can be affected by several factors, 
such as cutting height, lawn humidity, grass length 
and density. Besides, starting and stopping the mower 
too many times during operation will reduce the 
cutting area.
The table below gives the relationship between cutting 
conditions and cutting area.
Cutting conditions Cutting area (maximum)
Grass 
conditions
Cutting 
height
WG779E WG779E.1 WG779E.2
Very thin, 
dry grass
cut 8cm 
to 6cm
280m
2
* 460m
2
* 230m
2
*
Thin, dry 
grass
cut 8cm 
to 4cm
140m
2
* 230m
2
* 11 5 m
2
*
* Used with two fully charged battery packs.
TIPS:
1)  It is recommended to mow your lawn more 
frequently, walk at normal pace, and not to start/
stop the mower too often during operation. Please 
always use the same two batteries and charge the 
two batteries at same time.
2)  For best performance, please ensure use a fully 
charged battery pack and always cut off 1/3 or less 
of the grass height.
3)  Walk slowly when cutting long grass, so as to have 
more effective cutting and properly discharge the 
clippings.
4)  Avoid cutting wet grass, otherwise it will stick to 
the underside of the deck and the clippings cannot 
be collected or discharged properly.
5)  A higher cutting height shall be applied to new or 
thick grass and it will extend the battery duration.
BATTERY STATUS (See Fig. F)
Before starting or after use, press the button 
“POWERTEST” on the machine to check the battery 
capacity. During operation, the battery capacity will be 
indicated automatically by the battery power indicator. 
The indicator constantly senses and displays the 
battery condition as follows:
Battery power 
indicator status
Battery condition
Five green lights 
(
) are 
illuminated.
The two batteries are in a 
highly charged condition.
Two, three or four 
green lights are 
illuminated.
The two batteries have a 
remaining charge. The more 
lights are illuminated, the 
more battery capacity.
Only one green 
light (
) 
is illuminated.
At least one battery is deplet-
ed and needs to be charged.
No light is 
illuminated.
At least one battery is not 
fully installed or battery is 
defective.
Only one light 
(
) is 
flashing twice per 
cycle.
At least one battery is over 
discharged, please recharge 
the two batteries at once be-
fore use again or storage.
Only one light 
(
) is 
flashing three 
times per cycle.
At least one battery is hot, 
wait for them cool down 
before start again.
Only one light 
(
) is 
flashing four 
times per cycle.
The machine is over load. 
Raise the cutting height or 
push slowly.
MOWING TIPS
NOTE: ALWAYS INSPECT AREA WHERE MOWER 
IS TO BE USED AND REMOVE ALL STONES, 
STICKS, WIRE, METAL AND OTHER DEBRIS 
WHICH MIGHT BE THROWN BY THE ROTATING 
BLADE.
1.  Mow across the face of slopes, never up-and-
down. Exercise extreme caution when changing 
direction on slopes. Do not mow excessively steep 
slopes. Always maintain good footing.
2.  Release switch lever to turn mower “OFF” when 
crossing any graveled area (stones can be thrown 
by the blade).
3.  Set mower at highest cutting height when mowing 
in rough ground or in tall weeds. Removing too 
much grass at one time can cause circuit breaker 
to trip, which stops mower. 
4.  If a grass bag is used during the fast growing 
season, the grass may tend to clog up at the 
discharge opening. Release switch lever to turn 
mower “OFF” and remove the safety key. Remove 
the grass bag and shake the grass down to the 
back end of the bag. Also clean out any grass or 
debris which may be packed around the discharge 
opening. Replace the grass collection bag.
5.  If mower should start to vibrate abnormally, 
release switch lever to turn mower “OFF” and 
remove safety key. Check immediately for cause. 
Vibration is a warning of trouble. Do not operate 
mower until a service check has been made.