Worx WA3847 Instruction Book
Battery Charger EN
Chargeur F
Cargador ES
P04
P09
P15
WA3847
HELPLINE NUMBER
1-866-354-WORX (9679)
HELPLINE NUMBER
a
A
2
3
1
2
3
Battery Charger EN
4
1. CHARGER
2. CHARGED INDICATOR LIGHT (GREEN)
3. CHARGING INDICATOR LIGHT (RED)
Only use the appropriate accessories intended for this tool. Accessory information can be found
on the product packaging, at a WORX dealer or on our website at www.worx.com.
TECHNICAL DATA
Charger voltage 120V~60Hz
Voltage range of chargeable batteries 14.4V-20V
Power 78W
Charging time (approx.) 45min (for WA3520)
Machine weight 1.54 lbs
Protection class
/II
Battery Charger EN
5
SAFETY INSTRUCTIONS
WARNING: READ AND
UNDERSTAND ALL INSTRUCTIONS.
Failure to follow all instructions listed
below may result in electric shock, fire
and / or serious personal injury.
NOTE: Before using battery charger, read
all instructions and cautionary markings
in this manual, on battery charging
stand, battery pack, and product using
battery pack to prevent misuse of the
products and possible injury or damage.
WARNING: To reduce the risk
of electric shock or damage to
the battery charger and battery pack,
charge only the specifically designated
battery pack that was included with this
charger. Charging other types of battery
packs may cause them to burst, causing
personal injury and damage.
1. Do not use the charger outdoors or
expose to wet or damp conditions.
Water entering charging stand will
increase the risk of electric shock.
2.
Use of an attachment with this battery
charger that is not recommended may
result in a risk of fire, electric shock,
or injury to persons.
3. Do not abuse the cord on the battery
charger. Never carry the charger by
its cord. Never pull the cord to remove
the transformer from the power outlet.
Damage to the cord or charger could
occur and create an electric shock hazard.
Keep cord away from heat, oil, sharp
edges or moving parts. Replace damaged
cords immediately. Damaged cords
increase the risk of electric shock.
4. Make sure cord is located so that it
will not be stepped on, tripped over,
come in contact with sharp edges or
moving parts, heat, oil, or otherwise
subjected to damage or stress. This
will reduce the risk of accidental falls,
which could cause injury, and damage
to the cord which could result in electric
shock.
5. Keep cord and battery charger away
from heat to prevent damage to
housing or internal parts.
6. Do not let gasoline, oils, petroleumbased products, etc. come in contact
with plastic parts. They contain
chemicals which can damage, weaken or
destroy plastic.
7.
An extension cord should not be used
unless absolutely necessary. Use of
improper extension cord could result
in a risk of fire and electric shock. If an
extension cord must be used, make sure:
a) That pins on plug of extension cord are
the same number, size and shape as
those of transformer on charger,
b) That extension cord is properly wired and
in good electrical condition, and
c) That you use a proper extension cord.
ONLY use cords listed by Underwriters
Laboratories (UL) and/or Canadian
Standard Association (CSA). Other
extension cords can cause a drop in
line voltage, resulting in a loss of power
and overheating of charger. An AWG
(American Wire Gauge) size of at least 14gauge is recommended for an extension
cord of 25-ft, or less in length. Use
12-gauge for an extension cord of 50-ft.
Extension cords 100-ft. or longer are not
recommended.
8. INSPECT charger cords for damage.
Do not operate battery charger with
a damaged cord or transformer/plug,
which could cause shorting and
electric shock. Have damaged cords
can be repaired at a qualified Service
Center.
9. Do not operate battery charger if
it has received a sharp blow, been
dropped, or otherwise damaged
in any way. Take it to an authorized
serviceman for electrical check to
determine if the charger is in good
working order.
10. Do not disassemble battery charger.
Take it to authorized Parts and
Repair Center when service or repair
is required. Incorrect reassembly may
result in a risk of electric shock or fire.
Battery Charger EN
6
11. Disconnect battery charger from
the power supply when not in use.
This will reduce the risk of electric shock
or damage if metal items should fall into
the opening in the charging stand. It also
will help prevent damage during a power
surge.
12. Risk of electric shock. Do not touch
un-insulated portion of output connector
or un-insulated battery terminal.
13. INDOOR USE – Use in an indoor
location or where wet contact is not
likely to occur.
14. Save these instructions. Refer to them
frequently and use them to instruct others
who may use this battery charger. If you
loan someone this battery charger, loan
them these instructions also to prevent
misuse of the product and possible injury.
SYMBOLS
EXTENSION CORDS
USE PROPER EXTENSION CORD. Make sure
your extension cord is in good condition.
When using an extension cord, be sure to use
one heavy enough to carry the current your
product will draw. An undersized cord will
cause a drop in line voltage resulting in loss
of power and overheating. Table 1 shows the
correct size to use depending on cord length
and nameplate ampere rating. If in doubt, use
the next heavier gage. The smaller the gage
number, the heavier the cord.
Before charging, read the
instruction manual
Warning
Indoor use only
Double insulation
Table 1 Minimum gage for cord
Rating Volts Total length of cord in feet
Ampere
120V 25ft. 50ft. 100ft. 150ft.
240V 50ft. 100ft. 200ft. 300ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12 Not Recommended
Battery Charger EN
7
CHARGING PROCEDURE
NOTE: Before using the tool, read the
instruction book carefully.
1. CHARGING YOUR BATTERY PACK
The battery charger supplied is matched to the
Li-Ion battery installed in the machine. Do not
use another battery charger.
The Li-Ion battery is protected against deep
discharging. When the battery is empty,
the machine is switched off by means of a
protective circuit: The tool holder no longer
rotates.
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.
2. HOW TO CHARGE YOUR BATTERY (See
Fig. A)
Connect the battery charger to the power
supply and the green light (2) will illuminate.
Slide the battery pack (a) into the charger to
make the connections. The green light (2)
will be off and the red light (3) will illuminate
to show charging has started. A discharged
battery at normal ambient temperature
will take approximately 45 min to reach full
charge. When charging is completed the green
light (2) will illuminate while the red light (3)
is off.
NOTE:
This charger is designed to detect some
problems that can arise with battery pack. (see
table below)
Red Flashing
Green Off
Defective battery, after pre-charge some minutes
with trickle current, the total battery voltage is still
less than 10.0V (When charging 20V battery pack) /
8.0V (When charging 14.4V battery pack).
Red ON
Green Off
Charging
Green ON
Red Off
Power On and Fully Charged
Green Flashing
Red Off
The temperature of battery pack is less than 32°F
(0°C) or more than 113°F (45°C)
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