Table 2
Indications of the pilot lamp
Pilot lamp
(red)
Before charging Blinks
Lights for 0.5 seconds. Does not light for
0.5 seconds. (o
ff
for 0.5 seconds)
While charging
Lights
Lights continuously
Charging
complete
Blinks
Lights for 0.5 seconds. Does not light for
0.5 seconds. (o
ff
for 0.5 seconds)
Overheat
standby
Blinks
Lights for 1 second. Does not light for 0.5
seconds. (o
ff
for 0.5 seconds)
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)
Charging
impossible
Flickers
Lights for 0.1 seconds. Does not light for
0.1 seconds. (o
ff
for 0.1 seconds)
Malfunction in the battery or
the charger
(2) Regarding the temperature of the rechargeable
battery.
The temperatures for rechargeable batteries are
as shown in the Table 3, and batteries that have
become hot should be cooled for a while before being
recharged.
Table 3 Recharging ranges of batteries
Rechargeable
batteries
Temperatures at which the
battery can be recharged
BSL1830C, BSL1815
32°F–122°F
(0°C–50°C)
(3) Regarding recharging time (At 68°F (20°C))
Table 4 Charging time
Charger
Battery
UC18YKSL
BSL1830C
Approx. 90 min.
BSL1815
Approx. 40 min.
NOTE
The charging time may vary according to temperature
and power source voltage.
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.
CAUTION
●
When the battery charger has been continuosly
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.
●
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
UC18YKSL charger lights for 1 second, does not
light for 0.5 seconds (o
ff
for 0.5 seconds). The
battery will not be recharged. In such a case, let
the battery cool before charging.
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