
Battery Charging Precautions Charger Inspection
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4.3 Charger Inspection
CAUTION: Before using, inspect the charger and correct any
problems. Set up charger according to these procedures to reduce
the risk of injury from electric shock, fire and other causes and
prevent tool damage.
1) Make sure charger is unplugged. Inspect the power cord and
charger for damage or modifications, or broken, worn, missing,
misaligned or binding parts. If any problems are found, do not
use the charger until the parts have been repaired or replaced.
2) Clean any oil, grease or dirt from the tool especially on the
buttons. This helps prevent the tool from slipping from your
hands and allows proper ventilation.
3) Inspect if the warning label on charger’s surface is intact and
readable.
4) Select appropriate location for charger before using. Check work
area for:
u The charger must be between 41°F (5°C) and 113°F
(45°C) for charging. If the temperature of either is outside
of this range at any point during charging, the operation will
be suspended until brought back to the correct temperature
range.
u Inspect that the plug fits correctly into the desired outlet.
u The charger needs a clearance of at least 4" (10 cm) on all
sides to maintain a proper operating temperature.
4.4 Battery Charging Procedures
NOTE: New battery reaches full capacity after approximately 5
charging and discharging cycles.
The tool has a 3.7V built-in lithium-ion rechargeable battery. When
the battery is low, a “Battery critically low!” message appears and
suggests you to charge the battery in time. (Fig. 8)