Instruction manual

5
charger cavities. Always unplug the charger from the power supply when there is no
battery pack in the cavity. Unplug charger before attempting to clean.
• DO NOT attempt to charge the battery pack with any chargers other than the
ones in this manual. The charger and battery pack are specifically designed to
work together.
• These chargers are not intended for any uses other than charging DEWALT
rechargeable batteries. Any other uses may result in risk of fire, electric shock
or electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when disconnecting charger. This will reduce risk
of damage to electric plug and cord.
• Make sure that cord is located so that it will not be stepped on, tripped over,
or otherwise subjected to damage or stress.
• Do not use an extension cord unless it is absolutely necessary. Use of improper
extension cord could result in risk of fire, electric shock, or electrocution.
• 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.
MINIMUM GAGE FOR CORD SETS
For Cable length (m): 7.5 15 25 30 45 60
Use Cable with minimum rating (Amperes)
Tool Amperes
0 - 3.4 7.5 7.5 7.5 7.5 7.5 7.5
3.5 - 5.0 7.5 7.5 7.5 7.5 10 15
5.1 - 7.0 10 10 10 10 15 15
7.1 - 12.0 15 15 15 15 20 20
12.1 - 20.0 20 20 20 20 25 –
• 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
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.
• 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
(230 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. 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.