Charging Procedure
1 HOUR CHARGERS
1. Plug the charger into an appropriate power outlet.
2. Insert the battery pack into the charger, as shown in FIG.1, making sure the pack is
fully seated in the charger. The red (charging) light will blink continuously indicating that
the charging process has started.
3. The battery pack will be fully charged in about 1 hour. 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.
TROUBLE INDICATORS: These chargers are designed to detect certain problems that
can arise with battery packs which would be indicated by the red light flashing at a fast rate
(and continuous beeping for 15 Minute Chargers). If this occurs, re-insert battery pack. If
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 serv-
ice center for recycling. If the new battery pack elicits the same trouble indication as the
original, have charger tested at an authorized service center.
PROBLEM POWER LINE
If your charger has a Problem Power Line indicator: When the charger 'is used with some
portable power sources such as generators or sources that convert DC to AC, the charger
may temporarily suspend operation, flashing the red light with two fast blinks followed
by a pause. This indicates the power source is out of limits.
HOT PACK DELAY
If your charger has a Hot 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 Pack Delay mode.
15 MINUTE CHARGER
15 MINUTE CHARGERS
1. Plug the charger into an appropriate power outlet. The charger will beep twice, the red
light will blink and go off.
2. Insert the battery pack into the charger, as shown in FIG. 1, making sure the pack is
fully seated in the charger. The red light will blink and the charger will beep once indi-
cating the charging process has started.
3. The battery pack will be fully charged in less than 15 minutes under most conditions.
This will be indicated by the red light remaining ON and 3 beeps. The pack is fully
charged and may be used at this time or left in the charger.
WEAK BATTERY PACKS: The charger can also detect a weak battery. Such batteries
are still usable but should not be expected to perform as much work. In such cases,
about 10 seconds after battery insertion, the charger will beep rapidly 8 times to indicate
a weak battery condition. The charger will then go on to charge the battery to the
highest capacity possible.
FIG. 1
1 HOUR CHARGER
ALL CHARGERS
Leaving the battery pack in the charger: When the red light remains ON, the charger
has switched to its "equalize charge" mode which lasts approximately 4 hours, after which
the charger will switch to "maintenance charge" mode. The battery pack can be removed
at any time during these charge cycles, but will only be fully charged if the red light is con-
tinuously ON. The charger and battery pack can be left connected with the red light glow-
ing indefinitely. The charger will keep the battery pack fresh and fully charged. A battery
pack will slowly lose its charge when kept out of the charger. If the battery pack has not
been kept on maintenance charge, it may need to be recharged before use. A battery pack
may also slowly lose its charge if left in a charger that is not plugged into an appropriate
AC source.
Important Charging Notes
1. Longest life and best performance can be obtained if the battery pack is charged when
the air temperature is between 65°F and 75°F (18°- 24°C). DO NOT charge the bat-
tery pack in an air temperature below +40°F(+4.5°C), or above +105°F (+40.5°C). 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 nor-
mal condition, and does not indicate a problem.
3. If the battery pack does not charge properly — (1) Check current at receptacle by plug-
ging in a lamp or other appliance, (2) Check to see if receptacle is connected to a light
switch which turns power off when you turn out the lights. (3) Move charger and bat-
tery pack to a location where the surrounding air temperature is approximately 65°F -
75°F (18°- 24°C). (4) If charging problems persist, take or send 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 condi-
tions. Follow the charging procedure. You may also charge a partially used pack when-
ever you desire with no adverse affect on the battery pack.
5. Do not immerse charger in water or any other liquid.
WARNING: Don't allow any liquid to get inside charger. Electric shock may result. 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.
CAUTION: Never attempt to open the battery pack for any reason. If the plastic hous-
ing of the battery pack breaks or cracks, return to a service center for recycling.
FIG. 2
OPERATION
Installing and Removing the Battery Pack (Fig. 2, 3)
NOTE: Make sure your battery pack is fully charged.
To install the battery pack into the tool handle, align the base of the tool with the notch
inside the tool's handle and slide the battery pack firmly into the handle until you hear the
lock snap into place as shown. To remove the battery pack from the tool, press the release
buttons and firmly pull the battery pack out of the tool handle. Insert it into the charger as
described in the charger section of this manual.
3
FIG. 3
RELEASE BUTTON