Charge Indicators; Important Charging Notes - DeWalt DCF813-XE Instruction Manual

Charging Procedure (Fig. 1)
1. Plug the charger into an appropriate outlet before inserting battery pack.
2. Insert the battery pack (F) into the charger, as shown in Figure 1, making sure
the pack is fully seated in 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 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 charger 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 indication 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 charger 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 flashes long, then short while in the Hot/Cold Pack Delay mode.
LEAVING THE BATTERY PACK IN THE CHARGER
The charger and battery pack can be left connected with the charge indicator showing
Pack Charged.
WEAK BATTERY PACKS: Weak batteries will continue to function but should not be
expected to perform as much work.
FAULTY BATTERY PACKS: This charger will not charge a faulty battery pack. The
charger will indicate faulty battery pack by refusing to light or by displaying problem pack
or charger.
NOTE: This could also mean a problem with a charger.

Important Charging Notes

1. Longest life and best performance can be obtained if the battery pack is charged
when the air temperature is between 18 and 24 ˚C (65 and 75 ˚F). DO NOT
charge the battery pack in an air temperature below +4 ˚C (+40 ˚F), or above
+40 ˚C (+105 ˚F). This is important and will prevent serious damage to the
battery pack.
2. The charger and battery pack may become warm to touch while charging. This
is a normal condition, and does not indicate a problem. To facilitate the cooling
of the battery pack after use, avoid placing the charger or battery pack in a warm
environment such as in a metal shed, or an uninsulated trailer.
3. If the battery pack does not charge properly:
a. Check operation of receptacle by plugging in a lamp or other appliance;
b. Check to see if receptacle is connected to a light switch which turns power off
when you turn out the lights;
c. Move charger and battery pack to a location where the surrounding air
temperature is approximately 18–24 ˚C (65–75 ˚F);
d. If charging problems persist, take the tool, battery pack and charger to your
local service center.
4. The battery pack should be recharged when it fails to produce sufficient power
on jobs which were easily done previously. DO NOT CONTINUE to use under
these conditions. Follow the charging procedure. You may also charge a partially
used pack whenever you desire with no adverse affect on the battery pack.
5. 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 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.
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