DeWalt DW970 Manual De Instrucciones página 9

original pack is defective and should be returned to a service
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 genera-
tors or sources that convert DC to AC, the charger may temporarily
suspend operation, flashing the red light with two fast blinks fol-
lowed 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 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 indicating 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
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FIG. 4
FORWARD/
REVERSE
CONTROL
BUTTON
VARIABLE
SPEED
TRIGGER
SWITCH
battery to the highest capacity possible.
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 continuously ON. The charger
and battery pack can be left connected with the red light glowing
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 battery pack in an air tem-
perature below +40°F(+4.5°C), or above +105°F (+40.5°C). This
5
FORWARD
REVERSE
(LOCKED WHEN CENTERED)