DeWalt D0727 Instruction Manual page 8

collection siteforrecycling. If thenew battery p ack elicits thesame
trouble i ndication astheoriginal, have thecharger tested a tanautho-
rized service center.
HOT/COLD PACK DELAY
Some c hargers have a Hot/Cold Pack Delay f eature: when the charg-
erdetects abattery that i shot, i tautomatically starts a Rot P ack D elay,
suspending charging until the battery has cooled. After t he battery has
cooled, thecharger automatically switches to thePackCharging
mode. This feature e nsures maximum b attery life. T he redlight f lash-
eslong, then short while intheRotPack Delay m ode.
PROBLEM POWER U NE
Some c hargers have a Problem P ower Line indicator. When t hecharg-
erisused withsome portable power sources such asgenerators or
sources that c onvert DCtoAC, t hecharger may temporarily suspend
operation, flasMng t heredmight withtwofastMinks followed bya
pause. This indicates thepower source i soutoflimits.
LEAVING THE BATTERY PACK _NTHE CHARGER
The charger and battery pack can be left connected with the red light
glowing indefinitely. The charger wilI keep the battery pack fresh and
fully charged.
NOTE: A battery pack will stowly 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 slow-
ly Iose its charge if left in a charger that is not plugged into an appro-
priate AC source.
WEAK BATTERY PACKS: Chargers 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 inser-
tion, the charger wilI beep rapidly 8 times to indicate a weak battery
condition. The charger wiII then go on to charge the battery to the
highest capacity possible.
i_portant 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
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 normaI condition, and does not indicate a
problem.
3. If the battery pack does not charge properly:
a. Check current at receptacle by pIugging 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 Iights.
c. Move charger and battery pack to a location where the
surrounding air temperature is approximately 65°F - 75°F (18 °-
24°0).
d. If charging problems per_isL, Lake Lhe Loci, baLLery puck and
charger to your local service center.
4. The battery pack should be recharged when it fails to produce suf-
ficient power on jobs which were easily done previously. DO NOT
CONTINUE to use under these conditions. Follow the charging
procedure. You may aIso charge a partially used pack whenever
you desire with no adverse affect on the battery pack.
5. Under certain conditions, with the charger plugged into the power
supply, the exposed charging contacts inside the charger can be
shorted by foreign material. Foreign materials of a conductive
nature such as, but not limited to, steel woot, 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.
6. Do not freeze or immerse charger in water or any other liquid.
A WARNING: Don't a!low any i/quid to get inside charger. Electric
shock may resu/L To facilitate t,_ecooiing of the battery pack after use,