Operating Guide

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• 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 Wire Size for Extension Cords
Total Length of Cord
25 ft. 50 ft. 75 ft. 100 ft. 125 ft. 150 ft. 175 ft.
7.6 m 15.2 m 22.9 m 30.5 m 38.1 m 45.7 m 53.3 m
Wire Size AWG
18 18 16 16 14 14 12
• 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. The charger is ventilated through
slots in the top and the bottom of the housing.
• Do not operate charger with damaged cord or plug — have them replaced immedi-
ately.
• Do not operate charger if it has received a sharp blow, been dropped, or other-
wise 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, elec-
trocution or fire.
• Disconnect the charger from the outlet before attempting any cleaning. This will
reduce the risk of electric shock. Removing the battery pack will not reduce this risk.
• NEVER attempt to connect 2 chargers together.
• The charger is designed to operate on standard household electrical power (120
Volts). Do not attempt to use it on any other voltage. This does not apply to the
vehicular charger.
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 weekly or
after 10 charge/discharge cycles or whenever the pack no longer delivers the same
amount of work. To use the Automatic Tune-Up™, place the battery pack in the charger
and leave it for at least 8 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 main-
tenance charge; the indicator light shuts off when the Automatic Tune-Up™ Mode is
complete.
SAVE THESE INSTRUCTIONS FOR FUTURE USE
Chargers
Your tool uses a 7.2, 9.6, 12.0, 14.4, or 18.0 Volt DEWALT charger. Your battery can be
charged in D
EWALT 1 Hour Chargers, 15 Minute Chargers or Vehicular 12 Volt Charger. Be
sure to read all safety instructions before using your charger. Consult the chart at the end of
this manual for compatibility of chargers and battery packs.
Charging Procedure
1. Plug the charger into an appropriate outlet before inserting battery pack.
2. Insert the battery pack into the charger, as shown in Figure 3, making sure the pack is
fully seated. 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.
CAUTION: 120 volts present at charging terminals. Do not probe with conductive
objects. Danger of electric shock or electrocution.
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 bat-
tery 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 bat-
tery 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 sec-
onds 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.
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.