Worx WA3877 User Manual

Dual Port Battery Charger EN

Chargeur de batterie à double emplacement F

Cargador de batería de puerto doble ES

WA3877

P03

P06

P09

4

1

3

2

PRODUCT SAFETY
SAFETY INSTRUCTIONS

WARNING: This product can expose you

to chemicals including lead, phthalate or
bisphenol A which are known to the State of
California to cause cancer, birth defects or other
reproductive harm. Wash your hands after use. For
more information go to www.P65Warnings.ca.gov.

Information for radiated emission

This device complies with Canadian ICES-001.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.

WARNING: Changes or modifications to

this unit not expressly approved by the party
responsible for compliance could void the user’s
authority to operate the equipment.

- NOTE: This equipment has been tested and found
to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment generates,
uses and can radiate radio frequency energy and,
if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to radio
or television reception, which can be determined
by turning the equipment off and on, the user is
encouraged to try to correct the interference by one
or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment

and receiver.

• Connect the equipment into an outlet on a

circuit different from that to which the receiver is
connected.

• Consult the dealer or an experienced radio/TV

technician for help.

SYMBOLS

Before charging, read the instruction
manual

Warning

Double insulation

1. CHARGER

2. CHARGE INDICATOR LIGHTS

3. CHARGING MODE SELECTOR

4. BATTERY PACKS*

*Not all the accessories illustrated or
described are included in standard delivery.

TECHNICAL DATA

Rated Input voltage 120V~60Hz

Output voltage 40V

Charging current 1 A

Rated Input power 50 W

Charge battery Li-Ion

Charging time (approx.)

Battery pack 2.0 Ah(1pc) Approx. 2 hrs

2.0 Ah(2pcs) Approx. 4 hrs

Protection class

Machine weight 1.1 Ibs (0.5 kg)

For the technical data of the types, the number of
cells and the rated capacity of the batteries that can
be charged, please refer the nameplate of the battery
pack supplied by WORX.

/II

3

We recommend that you purchase your accessories
listed in the above list from the same store that sold
you the tool. Refer to the accessory packaging for
further details. Store personnel can assist you and
offer advice.

Dual Port Battery Charger EN

CHARGING PROCEDURE

NOTE: Before using the tool, read the
instruction book carefully.

Light

Green on

ON/OFF

flash

Status

Fully Charged

CHARGING INSTRUCTIONS

1. CHARGING YOUR BATTERY PACK

This charger is designed to charge one or two battery
packs together or in a row.

WARNING:

The charger and battery pack are specifically
designed to work together so do not attempt to use
any other devices to charge. Never insert or allow
metallic objects into your charger or battery pack
connections because an electrical failure and hazard
will occur.

2. BEFORE USING YOUR CORDLESS TOOL

Your battery pack is UNCHARGED and you must
charge once before use.

3. HOW TO CHARGE YOUR BATTERY PACK
CHARGING PROCEDURE

1) Plug the charger into an appropriate outlet.

2) Slide one battery pack or two battery packs into

the charger. Normally, the relevant indication
lights (2) will flash in green color showing the

4

battery is being charged.

3) This is a dual-port charger and it has 2 charging

modes, Dual-Charging (default) and 1-by-1
charging.

3.1

Dual-charging mode, for 2 battery packs to be

charged at the same time, the charger charges
both battery packs simultaneously.

3.2

1-by-1 charging mode, for reducing waiting
time to complete 1 battery pack charging first.
The charger charges the higher residual capacity
battery pack first until fully charged then the
charger charges the other battery.

4) Either of the two charging modes can be selected
by pressing Charging Mode Selector (3).

WARNING: When battery charge runs

out after continuous use or exposure
to direct sunlight or heat, allow time for the
battery to cool down before re-charging to
achieve the full charge.

CHARGING INDICATOR LIGHTS

This charger is designed to detect problems that
can rise with battery packs. Indicator lights indicate
problems (see table below). If this occurs, insert a
new battery pack to check. If the new battery pack
charges correctly, then the original pack is defective
and should be returned to a service center or recycling
service center. If the new battery pack displays the
same problem as the original battery pack, have the
charger tested at an authorized service center.

Green flash

Red on

Red flash

DEFECTIVE BATTERY PACKS

This charger will detect a defective battery pack.
When a defective battery pack is inserted into the
charger, the charger will try to repair it. This process
will last about 30mins (the light will be green and
flash). If the repair is successful, the charger will
automatically begin to charge the battery pack to the
highest capacity possible (the light will be green and
flash). If the light becomes solid red, then the battery
pack is dead, and should be returned to a service
center or recycling service center.
NOTE: Repaired battery packs are still usable but
should not be expected to perform as much work as
new battery packs.

BATTERY TEMPERATURE PROTECTION

This charger has a battery temperature protection
feature. When the charger detects a battery pack that
is too hot or cold (the light will be red and flash), it
automatically activates the protection circuit, and
suspends charging until the battery pack has reached
the correct temperature. The charging process will
then automatically begin (the light will be green and
flash). This feature ensures maximum battery life.

LEAVING THE BATTERY PACK IN THE CHAR­GER

If a fully charged battery pack is left in the charger,
the light will remain green. The battery pack will
remain charging with a maintenance trickle current.

IMPORTANT CHARGING NOTES:

1. For a new battery pack or a battery pack that has
been in storage for a long period, please recharge
it before use. If you want to store the battery pack
for a long time, please fully charge the battery
pack to ensure maximum battery life.

2. Longer life and better performance can be
obtained if the battery pack is charged when
the air temperature is between 65 and 75

- - - - - - Charging

Defective Battery

Battery Temperature
Protection

- - - - -

The temperature of
battery pack is less
than 32
than 113

o

F (0oC) or more

o

F(45oC).

0

F

Dual Port Battery Charger EN

(180-240C). Do not charge the battery pack in
air temperatures below 40

0

105

F (40.50 C). This is important as it can prevent

serious damage to the battery pack.

3. Never freeze your charger or immerse charger in
water or any other liquid.

4. When the battery pack fails to produce sufficient
power on jobs that were previously done easily,
please recharge your battery pack, do not
continue using it under this condition. You may
charge a partially used pack whenever you desire
with no adverse affect on the battery pack.

5. When charging it is normal that the charger and
battery pack may become warm to touch.

6. If the battery pack does not charge properly:

a. Check current at power outlet by plugging in

another appliance.

b. Plug and unplug to check whether the charger is

ok

c. Check whether the battery pack has been

damaged

d. Move the charger and battery pack to a location

where the surrounding air temperature is
approximately 65 and 75

e. If the charging problem persists, take the tool,

battery pack and charger to an authorized service
center.

f. Under certain conditions, when the charger is

plugged into the power supply, the exposed
charging contacts inside the charger can be
shorted by foreign material. Foreign materials
of a conductive nature such as metallic particles
should be kept away from charger cavities.
Always unplug the charger from the power
supply when there is no battery pack in the
charger or before attempting to clean.

0

F (4.50 C), or above

0

F (180-240 C).

proper air temperature to start charging.

c) If the battery pack is very hot, remove battery

pack from the charger and allow battery pack
to cool first to ambient temperature and then
recharging can be started.

d) Batteries of higher Amp Hour rating require more

charging time.

MAINTENANCE

Remove the plug from the socket before
carrying out any adjustment, servicing or
maintenance.

Your battery charger requires no additional
lubrication or maintenance. Never use water or
chemical cleaners to clean your charger. Wipe clean
with a dry cloth. Always store your charger in a dry
place.
If the supply cord is damaged, it must be replaced
by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.

5

PROBLEM SOLUTION

I CANNOT FIT THE BATTERY PACK INTO THE
BATTERY CHARGER. WHY?

a) Check if the charger and the battery pack are

specifically designed for working together.

b) The battery pack can be inserted into the charger

only in one direction. Turn the battery pack
around until it can be inserted into the slot, the
indicator light should be green and flash when
the battery pack is charging.

REASONS FOR DIFFERENT CHARGING TIMES

The charging time can be affected by many reasons
which are not defects in your product.
a) If the battery pack is only partly discharged it may

be re-charged in less than rated charging time.

b) If the battery pack and ambient temperature are

very cold/hot, it may take longer to re-charge.
Please find an appropriate environment with

Dual Port Battery Charger EN

www.worx.com

Copyright © 2017, Positec. All Rights Reserved.