Table 2 Charging time (At 20°C)
Charger
Battery
EB912S, EB914S, BCC915,
EB1212S, EB1214S,
BCC1215, EB1412S,
EB1414S, BCC1415,
EB1814SL, BCC1815
EB9B, EB1220BL, EB14B,
EB1820L
The pilot lamp goes off to indicate that the battery is fully
charged.
The battery charging time becomes longer when a
temperature is low or the voltage of the power source is
too low.
<UC18YG>
When the pilot lamp does not go off even if more than 120
minutes have elapsed after starting of the charging, stop
the charging and contact your HITACHI AUTHORIZED
SERVICE CENTER.
CAUTION
If the battery is heated due to direct sunlight, etc.,
just after operation, the charger pilot lamp may not
light up. At that time, cool the battery fi rst, then start
charging.
3. Disconnect the charger's power cord from the
receptacle
4. Hold the charger fi rmly and pull out the battery
NOTE
After charging, pull out batteries from the charger fi rst,
and then keep the batteries properly.
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.
Table 3
Before
charging
While
charging
Pilot lamp
Charging
(red)
complete
Overheat
standby
(2) Regarding the temperature of the rechargeable battery.
The temperatures for rechargeable batteries are as
shown in the table below, and batteries that have become
hot should be cooled for a while before being recharged.
UC18YG
UC18YK
Approx.
Approx.
30 min.
50 min.
Approx.
Approx.
50 min.
80 min.
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
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)
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.
<UC18YGH>
Before using the power tool, charge the battery as follows.
1. Connect
the
charger's
receptacle.
When
connecting
the
a receptacle, the pilot lamp will blink in red
(At 1-second intervals).
2. Insert the battery into the charger.
Firmly insert the battery into the charger till it contacts
the bottom of the charger and checking the polarities as
shown in Fig. 4.
CAUTION
If the batteries are inserted in the reverse direction, not
only recharging will become impossible, but it may also
cause problems in the charger such as a deformed
recharging terminal.
3. Charging
When inserting a battery in the charger, the pilot lamp will
light up continuously in red.
When the battery becomes fully recharged, the
pilot lamp will blink in red (At 1-second intervals).
(See Table 3)
(1) 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.
English
power
cord
to
plug
of
the
charger
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)
the
to
13