(3). While charging, the charger may hum and become warm to touch. This is a normal phenom-
enon and does not indicate a problem.
(4). If the batteries do not charge properly:
a. Check current at the receptacle by plugging in a lamp or other appliances.
b. Check if receptacle is connected to a light switch which turns power off when you turn out the
lights.
c. Move charger and tool to a location where the surrounding air temperature is 40°F (4.5°C) to
105°F (40.5°C).
d. If the receptacle and temperature are OK, but you do not get proper charging, take or send the
tool and charger to your local service center.
(5). The tool should be recharged when it fails to produce sufficient power on jobs which were
easily done previously. Battery life may be greatly diminished if batteries are discharged deeply. DO
NOT CONTINUE
to use product with its batteries in a depleted condition. Recharge discharged
batteries promptly.
(6). To maximize battery life:
a. Do not fully discharge batteries.
b. Fully recharge batteries after each use.
c. Store tool in a location where the surrounding air temperature is approximately 40°F-75°F
(4.5°C-24°C).
d. Disconnect charger from tool after charging is complete. WARNING: Fire hazard. When
disconnecting the charger from the tool, be sure to unplug the charger from the outlet first,and then
disconnect the charging cord from the tool.
Important:
The battery pack is not fully charged at the factory. Before attempting to charge them,
read all the safety instructions thoroughly.
(1). To assure that the charger you use is applicable to the battery pack.
(2). Plug the charger plug into the charging hole of the battery pack.
(3). Plug the charger into any suitable standard outlet.
(4). Let the battery pack charge initially with the green light twinkling. If the power green lights are
lighting for a long time, the battery pack is fully charged.
Recharge discharged batteries as soon as possible after use or battery life may be greatly
diminished.
For longest battery life, do not discharge batteries fully.
It is recommended that the batteries should be recharged after each use.
Warning:
Fire hazard. When unplug the output plug from the charging hole, be sure to unplug
the charger from the outlet first and then disconnect the charger output plug from the charging hole.
Important Charging Notes
(1). Your tool is sent from the factory in an uncharged condition. Before attempting to use it, it
must be charged.
(2). Caution: To reduce the risk of damage to the batteries, NEVER charge them in an air
temperature below 40°F (4.5°C) or above 105°F (40.5°C). Also, NEVER charge them if the battery
temperature is below 40°F (4.5°C) or above 105°F (40.5°C). Longest life and best performance can be
obtained when batteries are charged with an air temperature of approximately 75°F (24°C).
Note: The tool will not charge if the tool temperature is below approximately 32°F (0°C) or above
113°F (45°C).
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Charging Procedure