Charging Procedure - DeWalt DW077 Manual De Instrucciones

• 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 individ-
ual cells in the battery pack allowing it to function at peak capacity.
Battery packs should be tuned up weekly or after 10 charge/dis-
charge 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. If 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
begin a maintenance charge; the red indicator will remain lit.
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
Chargers
Your tool uses a D WALT charger. Your battery can be charged in
E
D WALT 1 Hour Chargers, 15 Minute Chargers or Vehicular 12 Volt
E
Charger. Be sure to read all safety instructions before using your
charger. Consult the chart at the end of this manual for compatibili-
ty of chargers and battery packs.

Charging Procedure

DANGER: Electrocution hazard. 120 volts present at charging
terminals. Do not probe with conductive objects. Danger of electric
shock or electrocution.
1. Plug the charger into an appropriate outlet before inserting bat-
tery pack.
2. Insert the battery pack into the charger, 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.
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 deter-
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