English
Before charging
While charging
Charging
Pilot lamp
complete
(red)
Overheat
standby
Charging
impossible
(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
BSL1850, BSL1815
(3) Regarding recharging time (At 68°F (20°C))
Table 4 Charging time (UC18YKSL)
Charger
Battery
BSL1815
Table 5 Charging time (UC18YFSL)
Charger
Battery
BSL1850
NOTE
The charging time may vary according to temperature
and power source voltage.
12
Indications of the pilot lamp
Lights for 0.5 seconds. Does not light for
Blinks
0.5 seconds. (off for 0.5 seconds)
Lights continuously
Lights
Lights for 0.5 seconds. Does not light for
Blinks
0.5 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
Flickers
0.1 seconds. (off for 0.1 seconds)
Temperatures at which the
battery can be recharged
32°F–122°F
(0°C–50°C)
UC18YKSL
Approx. 40 min.
UC18YFSL
Approx. 75 min.
Table 2
4. Disconnect battery charger from the receptacle.
CAUTION
Do not pull the plug out of the receptacle by
pulling on the cord.
Make sure to grasp the plug when removing from
receptacle to avoid damaging cord.
5. Remove the battery from the battery charger.
Supporting the battery charger with hand, pull out the
battery from the battery charger.
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.
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)
Malfunction in the battery or
the charger