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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 fol-
lowing 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; the indicator light shuts off
when the Automatic Tune-Up™ Mode is complete.
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
DANGER: Electrocution hazard. 120 volts present at charging ter-
minals. Do not probe with conductive objects. Danger of electric shock
or electrocution.
1. Plug the charger into an appropriate outlet before inserting battery
pack.
2. Insert the battery pack into the charger making sure the pack is
fully seated. The red (charging) light will blink continuously indi-
cating that the charging process has started.
3. The completion of charge will be indicated by the red light remain-
ing ON continuously. The pack is fully charged and may be used
at this time or left in 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 charg-
er 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 indi-
cation 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 charg-
er 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 flash-
es long, then short while in the Hot Pack Delay mode.