Charging Procedure; Battery Performance - DeWalt DW934 Guide D'utilisation

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• These chargers are not intended for any uses other than
charging D
WALT rechargeable batteries. Any other uses
E
may result in risk of fire, electric shock or electrocution.
• Pull by plug rather than cord when disconnecting charger.
This will reduce risk of damage to electric plug and cord.
• Make sure 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 an 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.
Recommended Minimum AWG Size for Extension Cords
Total Extension Cord Length (feet)
25
50
75
100
Wire Gauge
18
18
16
16
• 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 a damaged cord or plug — have
them replaced immediately.
• Do not operate the 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 reassem-
bly may result in a risk of electric shock, electrocution or fire.
125
150
175
14
14
12
7
• 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 (240 Volts AC). Do not attempt to use it on
any other voltage. This does not apply to vehicular charger.
Chargers
Your battery can be charged in D
Minute Chargers or Vehicular 12 volt charger. Be sure to read all
safety instructions before using your charger. Consult the chart on
the back cover of this manual for compatibility of chargers and bat-
tery packs.

Charging Procedure

1. Plug the charger into an appropriate outlet.
2. Insert the battery pack into 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 remain-
ing ON continuously. The pack is fully charged and may be used
at this time or left in the charger.

Battery Performance

Some chargers have a tune-up feature that optimizes battery
pack performance. Your charger may provide Automatic Tune-
Up™ Mode or manual (i.e. push button) Tune-Up™ mode. For
information on this feature, please see the appropriate section
below. Because batteries slowly lose their charge when they are
not on the charger, the best place to keep your battery pack is on
the charger at all times.
USING AUTOMATIC TUNE-UP™ MODE
The Automatic Tune-Up™ Mode equalizes or balances the indi-
vidual cells in the battery pack allowing it to function at peak
WALT 1 Hour Chargers, 15
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