Worx WA3739, Manual

Battery Charger 

EN

12

CHARGE INDICATOR LIGHT GUIDE

Light

Status

Green ON

Charger is plugged into 
the socket without the 
battery inserted.
Battery is either 
fully charged or the 
temperature of the 
battery is too high or too 
low and is not within the 
permisable temperature 
range (less than 0

℃

or more than 45

℃

) for 

charging to take place.

Red ON
(Green will 
transfer to red 
directly without 
delay.)

Charging

NOTE: 

1.   The charger will not automatically switch 

off when the battery is full charged. Do not 
leave your battery on charge continuously. 
This may damage the battery cells.

Do not overcharge any batteries.

WARNING:

 After long usage the 

battery will become hot. Let the hot 

battery cool down for at least 0.5 hour 
before recharging.

2.   Do not charge a battery when it too hot or 

the air temperature is blew 4

o

C.

3.   In a warm environment or after heavy use, 

the battery pack may become too hot to 
permit charging. Allow time for the battery 
to cool down before recharging.

When the battery is charged for the first 
time and after prolonged storage, the 
battery will only accept approximately 
60% charge. However, after several charge 
and discharge cycles the battery will 
accept a 100% charge.

4.   It must be charged for 12 hours before 

using the first time!

5.   The normal charging time lasts about 

3 hours. When charging is completed, 
unplug the charging plug form the wall 
socket.

WARNING:

 Shock hazard. Don’t allow 

any liquid to get inside charger. Electric 

shock may be the result.

CAUTION: 

Never attempt to open the battery 

pack for any reason. If the plastic housing of 
the battery pack breaks or cracks, return to a 
service center for recycling.

STORAGE RECOMMENDATIONS

1.   The best storage place is one that is cool 

and dry away from direct sunlight and 
excess heat or cold. 

2.   If the battery pack will not be used for 

a long time, it is best to make sure it is 
properly stored. Make sure it is half or 
fully charged before storing. The battery 
should be stored in an area that maintains 
a temperature of approximately 65°F and 
75°F (18°- 24°C). Long term exposures to 
hot temperatures are hazardous to the 
battery packs life. Additionally, the battery 
pack should be charged at least once a 
year.