DeWalt DCF7871D2A Original Instructions Manual page 8

English
that is, 16 gauge has more capacity than
18 gauge. An undersized cord will cause
a drop in line voltage resulting in loss
of power and overheating. When using
more than one extension to make up
the total length, be sure each individual
extension contains at least the minimum
wire size. The following table shows the
correct size to use depending on cord
length and nameplate ampere rating. If
in doubt, use the next heavier gauge.
The lower the gauge number, the heavier
the cord.
Minimum gauge for Cord sets
Total length of Cord in Feet
Volts
120 V 25 (7.6)
240 V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
Ampere Rating
More not
Than More
Than
0 6 18
6 10 18
10 12 16
12 16 14
• Do not place any object on top of the 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 the charger with a damaged cord
or plug.
• 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 the 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 220-
240V household electrical power. Do not attempt
to use it on any other voltage. This does not
apply to the vehicular charger.

WARNING: Shock hazard. Do not allow any liquid to
get inside the charger. Electric shock may result.
(meters)
50 (15.2) 100 (30.5) 150 (45.7)
American Wire gauge
16 16
16 14
16 14
12 Not Recommended

WARNING: Burn hazard. Do not submerge the
battery pack in any liquid or allow any liquid to
enter the battery pack. Never attempt to open the
battery pack for any reason. If the plastic housing of
the battery pack breaks or cracks, return to a service
center for recycling.

CAUTION: Burn hazard. To reduce the risk of injury,
charge only D
Other types of batteries may overheat and burst
resulting in personal injury and property damage.
NOTICE: Under certain conditions, with the charger
plugged into the power supply, the charger can
be shorted by foreign material. Foreign materials
of a conductive nature, such as, but not limited to,
grinding dust, metal chips, steel wool, aluminum
foil or any buildup of metallic particles should be
kept away from the charger cavities. Always unplug
the charger from the power supply when there is no
battery pack in the cavity. Unplug the charger before
attempting to clean.
Charging a Battery (Fig. C)
14
1. Plug the charger into an appropriate outlet before
12
inserting battery pack.
12
Fig. C
5
2. Insert the battery pack
the battery pack is fully seated in 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 remaining ON continuously. The battery pack is
fully charged and may be used at this time or left in the
charger. To remove the battery pack from the charger,
push the battery release button
nOTE: To ensure maximum performance and life of lithium-
ion battery packs, charge the battery pack fully before first
use.
Charger Operation
Refer to the indicators below for the charge status of the
battery pack.
WALT rechargeable battery packs.
e
6
6 into the charger, making sure
on the battery pack.
5