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INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
DW0246 Charger
DW0246 Chargeur
DW0246 Cargador
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO
ANTES DE USAR EL PRODUCTO.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL,
CALL US TOLL FREE AT:
1-800-4-DEWALT (1-800-433-9258)
Important Safety Instructions
• SAVE THESE INSTRUCTIONS. This manual contains important safety and operating
instructions for DW0246 battery charger.
• Before using charger, read all instructions and cautionary markings on (1) charger, (2) battery
pack, and (3) product using battery pack.
DANGER: 120 volts present at charging terminals. Do not probe with conductive objects.
Danger of electric shock or electrocution.
DANGER: If battery pack case is cracked or damaged, do not insert into charger. Danger of
electric shock or electrocution.
DANGER: 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.
WARNING: Don’t allow any liquid to get inside charger. Electric shock may result.
CAUTION: To reduce risk of injury, charge only D
E
WALT rechargeable batteries. Other types
of batteries may burst, causing personal injury and damage.
• To facilitate the cooling of the battery pack after use, avoid placing the charger or battery pack
in a warm environment such as in a metal shed, or an uninsulated trailer.
• Do not expose charger to rain or snow.
• Use of an attachment not recommended or sold by D
E
WALT may result in a risk of fire, elec-
tric shock, or injury to persons.
• This charger is not intended for any uses other than charging D
E
WALT rechargeable batter-
ies. Any other uses may result in risk of fire, electric shock or electrocution.
• To reduce risk of damage to electric plug and cord, pull by plug rather than cord when dis-
connecting charger.
• Make sure cord is located so that it will not be stepped on, tripped over, or otherwise sub-
jected to damage or stress.
• An extension cord should not be used unless absolutely necessary. Use of improper exten-
sion cord could result in risk of fire, electric shock, or electrocution. If an extension cord must
be used, make sure:
• That the pins on plug of extension cord are the same number, size and shape of those of
plug on charger.
• That extension cord is properly wired and in good electrical condition and the wire size is
large enough for AC ampere rating of charger as specified below.
An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety.
The smaller the gauge number of the wire, the greater the capacity of the cable, that is, 16
gauge has more capacity than 18 gauge. When using more than one extension to make up the
total length, be sure each individual extension contains at least the minimum wire size.
Recommended Minimum AWG Size for Extension Cords
Total Extension Cord Length (feet)
25 50 75 100 125 150 175
Wire Gauge
18 18 16 16 14 14 12
• The charger is ventilated through slots in the housing. Do not place any object on top of charger
or place the charger on a soft surface that might block the ventilation slots and result in
excessive internal heat. Place the charger in a position away from any heat source.
• Do not operate charger with damaged cord or plug — have them replaced immediately.
• Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in
any way; take it to an authorized service center.
• Do not disassemble charger; take it to an authorized service center when service or repair is
required. Incorrect reassembly may result in a risk of electric shock, electrocution or fire.
• The charger is designed to operate on standard household electrical power. Do not attempt
to use it on any other voltage.
• To reduce risk of electric shock, unplug charger from outlet before attempting any cleaning.
Removing the battery pack will not reduce this risk.
• NEVER attempt to connect 2 chargers together.
• DO NOT store or use the tool and battery pack in locations where the temperature may reach
or exceed 105°F (such as outside sheds or metal buildings in summer).
NOTE: Battery storage and carrying caps are provided for use whenever the
battery is out of the tool or charger. Remove cap before placing battery in
charger or tool.
WARNING: Do not store or carry battery so that metal objects can con-
tact exposed battery terminals. For example, do not place battery in aprons,
pockets, tool boxes, product kit boxes, drawers, etc., with loose nails, screws,
keys, etc. without battery cap. Transporting batteries can possibly cause fires if the battery
terminals inadvertently come in contact with conductive materials such as keys, coins,
hand tools and the like. The US Department of Transportation Hazardous Material Regulations
(HMR) actually prohibit transporting batteries in commerce or on airplanes (i.e., packed in suit-
cases and carry-on luggage) UNLESS they are properly protected from short circuits. So when
transporting individual batteries, make sure that the battery terminals are protected and well
insulated from materials that could contact them and cause a short circuit.
SAVE THESE INSTRUCTIONS
Introduction
Your charger is designed to use standard 120 volt AC, 60 Hz power. Do not use DC or any other
voltage. Charge time is approximately one hour.
Charging Procedure
1. Plug the charger into an appropriate outlet.
2. Insert the battery pack into the charger.
Be sure the pack is fully seated in the charger.
The
red (charging) light will blink continuously indicating that the charging process has started.
3. The completion of charge will be indicated by the red light remaining ON continuously. The pack
is fully charged and may be used at this time or left in the charger.
DANGER: 120 volts present at charging terminals. Do not probe with conductive objects.
Danger of electric shock or electrocution.
Using Automatic Tune-Up™ Mode
The Automatic Tune-Up™ Mode equalizes or balances the individual cells in the battery pack
allowing it to function at peak capacity. Battery packs should be tuned up after every 10th
charge/ discharge cycle or whenever the pack no longer delivers the same amount of work. To
use the automatic tune-up mode, simply place the battery pack in the charger and leave it for at
least eight hours. The charger will cycle through the following modes.
1. The red light will blink continuously indicating that the 1-hour charge cycle has started.
2. When the 1-hour charge cycle is complete, the light will stay on continuously and will no
longer blink. This indicates that the pack is fully charged and can be used at this time.
3. Whenever the pack is left in the charger after the initial 1-hour charge, the charger will begin
the Automatic Tune-Up™ Mode. This mode continues up to 8 hours or until the individual
cells in the battery pack are equalized. The battery pack is ready for use and can be
removed at any time during the Tune-Up™ Mode.
4. Once the Automatic Tune-Up Mode is complete the charger will transition to a maintenance
charge; no indicator light shows the completion of the Automatic Tune-Up™ Mode.
The best place to keep your battery pack is on the charger at all times because batteries slow-
ly lose their charge when they are not on the charger.
Indicator Light Operation
Charge Indicators
Some chargers are designed to detect certain problems that can arise with battery packs.
Problems are indicated by the red light flashing at a fast rate. If this occurs, re-insert battery pack
into the charger. If the problem persists, try a different battery pack to determine if the charger is
OK. If the new pack charges correctly, then the original pack is defective and should be returned
to a service center or other collection site for recycling. If the new battery pack elicits the same
trouble indication as the original, have the charger tested at an authorized service center.
HOT/COLD PACK DELAY
Some chargers have a Hot/Cold Pack Delay feature: when the charger detects a battery that is
hot, it automatically starts a Hot Pack Delay, suspending charging until the battery has cooled.
After the battery has cooled, the charger automatically switches to the Pack Charging mode.
This feature ensures maximum battery life. The red light flashes long, then short while in the Hot
Pack Delay mode.
PROBLEM POWER LINE
Some chargers have a Problem Power Line indicator. When the charger is used with some
portable power sources such as generators or sources that convert DC to AC, the charger may
temporarily suspend operation, flashing the red light with two fast blinks followed by a
pause. This indicates the power source is out of limits.
LEAVING THE BATTERY PACK IN THE CHARGER
The charger and battery pack can be left connected with the red light glowing indefinitely. The
charger will keep the battery pack fresh and fully charged.
NOTE: A battery pack will slowly lose its charge when kept out of the charger. If the battery pack
has not been kept on maintenance charge, it may need to be recharged before use. A battery
pack may also slowly lose its charge if left in a charger that is not plugged into an appropriate
AC source.
WEAK BATTERY PACKS: Chargers can also detect a weak battery. Such batteries are still
usable but should not be expected to perform as much work. In such cases, about 10 seconds
after battery insertion, the charger will beep rapidly 8 times to indicate a weak battery condition.
The charger will then go on to charge the battery to the highest capacity possible.
NOTE: A battery pack will slowly lose its charge when kept out of the charger. If the battery pack
has not been kept on maintenance charge, it may need to be recharged before use. A battery
pack may also slowly lose its charge if left in a charger that is not plugged into an appropriate
AC source.
Fan Cooling
This charger is equipped with an internal fan that provides rapid cooling of DEWALT DW0242
battery packs. The fan operation is automatic and will turn on when required during battery
charging. This procedure is of great benefit for a pack that has finished a useable cycle. Place
the battery pack into the charger immediately after use so that the fan can cool the cells and pro-
long the life of the battery pack.
WARNING: Fan may blow debris from vent area at any time. Keep face and eyes away from
area above vents. To minimize the risk of eye injury, always use eye protection.
Important Charging Notes
1. Longest life and best performance can be obtained if the battery pack is charged when the
air temperature is between 65°F and 75°F (18°- 24°C). DO NOT charge the battery pack in
an air temperature below +40°F(+4.5°C), or above +105°F (+40.5°C). This is important and
will prevent serious damage to the battery pack.
2. The charger and battery pack may become warm to touch while charging. This is a normal
condition, and does not indicate a problem.
3. If the battery pack does not charge properly — (1) Check power at receptacle by plugging
in a lamp or other appliance. (2) Check to see if receptacle is connected to a light switch
which turns power off when you turn out the lights. (3) Move charger and battery pack to a
location where the surrounding air temperature is approximately 65°F - 75°F (18°- 24°C). (4)
If charging problems persist, take or send the tool, battery pack and charger to your local
service center.
DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286
(JUL04) Form No. 626602-00 DW0246 Copyright © 2002, 2004 DEWALT
The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the
“D” shaped air intake grill; the array of pyramids on the handgrip; the kit box configuration; and the array of
lozenge-shaped humps on the surface of the tool.
Questions? See us in the World Wide Web at www.dewalt.com