Before
charging
While charging Lights
Charging
complete
Pilot lamp
(red)
Overheat
standby
Charging
impossible
● Regarding the temperatures and charging time of the battery.
The temperatures and charging time will become as shown in Table 2.
Battery
Charging voltage
Weight
Temperatures at which the battery can be recharged
Charging time for battery capacity, approx.
(At 20oC)
1.3 Ah
1.5 Ah
2.0 Ah
2.5 Ah
3.0 Ah
4.0 Ah
5.0 Ah
Number of battery cells
NOTE
The recharging time may vary according to the ambient
temperature and power source voltage.
CAUTION
When the battery charger has been continuously used,
the battery charger will be heated, thus constituting
the cause of the failures. Once the charging has been
completed, give 15 minutes rest until the next charging.
4. Disconnect the charger's power cord from the
receptacle.
5. Hold the charger fi rmly and pull out the battery.
NOTE
Be sure to pull out the battery from the charger after use,
and then keep it.
CAUTION
○ If the battery is charged while it is heated because it has
been left for a long time in a location subject to direct
sunlight or because the battery has just been used, the
pilot lamp of the charger lights for 1 second, does not
light for 0.5 seconds (off for 0.5 seconds). In such a case,
fi rst let the battery cool, then start charging.
○ When the pilot lamp fl ickers in red (at 0.2-seconds
intervals), check for and take out any foreign objects in
the charger's battery connector. If there are no foreign
objects, it is probable that the battery or charger is
malfunctioning. Take it to your authorized Service
Center.
Table 1
Indications of the pilot lamp
Lights for 0.5 seconds. Does not light for 0.5
Blinks
seconds. (off for 0.5 seconds)
Lights continuously
Lights for 0.5 seconds. Does not light for 0.5
Blinks
seconds. (off for 0.5 seconds)
Lights for 1 second. Does not light for 0.5
Blinks
seconds. (off for 0.5 seconds)
Lights for 0.1 seconds. Does not light for 0.1
seconds. (off for 0.1 seconds)
Flickers
Table 2
Charger
V
kg
min.
min.
min.
min.
min.
min.
min.
UC18YFSL
14.4 – 18
0.5
0oC – 50oC
20
22
30
35
45
60
75
○ Since the built-in micro computer takes about 3
seconds to confi rm that the battery being charged with
charger is taken out, wait for a minimum of 3 seconds
before reinserting it to continue charging. If the battery
is reinserted within 3 seconds, the battery may not be
properly charged.
MOUNTING AND OPERATION
Action
Removing and inserting the
battery
Charging
Mounting the bit
Reversing the rotational direction
Switch operation
How to use the LED light
Selecting accessories
5
English
Battery overheated.
Unable to charge.
(Charging will
commence when
battery cools)
Malfunction in the
battery or the charger
UC18YKSL
0.35
35
40
60
75
90
120
150
4 – 10
Figure
1
2
3
4
5
6
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