Weak Battery Packs: (DW9115). 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.
Leaving the battery pack in the charger: 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.
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
DW9115). 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 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.
Equalization Mode (DW9107 only)
When the red light remains ON, the charger has switched to its
"equalize charge" mode which lasts approximately 6 hours, after
which the charger will switch to "maintenance charge" mode.
PROBLEM POWER LINE (DW9107)
When these chargers are used with some portable power sources
such as generators or sources that convert DC to AC, the chargers
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.
Installing and Removing the Battery Pack
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 (FIG.2) and slide the
battery pack firmly into the handle until you hear the lock snap into
place as shown in FIG. 3. 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.
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
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 normal condition, and does not indicate a
problem.
4
English
RELEASE BUTTON
FIG. 2
FIG. 3
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