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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.
Regarding electric discharge in case of new batteries,
etc.
As the internal chemical substance of new batteries and
batteries that have not been used for an extended period
is not activated, the electric discharge might be low when
using them the fi rst and second time. This is a temporary
phenomenon, and normal time required for recharging
will be restored by recharging the batteries 2 – 3 times.
How to make the batteries perform longer.
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery. If
you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate, and
the battery life will be shortened. Leave the battery and
recharge it after it has cooled for a while.
Before
charging
While charging Lights
Charging
complete
Pilot lamp
(red)
Overheat
standby
Charging
impossible
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
Flickers
seconds. (off for 0.1 seconds)
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 charge indicator lamp of the charger lights for
0.3 seconds, does not light for 0.3 seconds (off for 0.3
seconds). In such a case, fi rst let the battery cool, then
start charging.
○ When the charge indicator lamp fl ickers (at 0.2-second
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.
○ Since the built-in micro computer takes about
3 seconds to confi rm that the battery being charged with
UC18YSL3 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.
<UC18YFSL>
6. Charging
When inserting a battery in the charger, charging will
commence and the pilot lamp will light continuously in
red.
When the battery becomes fully recharged, the pilot lamp
will blink in red. (At 1-second intervals) (See Table 3)
● Pilot lamp indication
The indications of the pilot lamp will be as shown in
Table 3, according to the condition of the charger or the
rechargeable battery.
Table 3
7
Battery overheated.
Unable to charge.
(Charging will
commence when
battery cools)
Malfunction in the
battery or the charger
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