Prior To Operation - Hitachi WH 10DFL Handling Instructions Manual

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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 1)
Table 1
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 2, and batteries that have become
hot should be cooled for a while before being
recharged.
Table 2 Recharging ranges of batteries
Rechargeable batteries
BCL1015
(3) Regarding recharging time
Depending on the combination of the charger and
batteries, the charging time will become as shown in
Table 3.
Table 3 Charging time (At 20°C)
Charger
Battery
BCL1015
NOTE
The charging time may vary according to temperature
and power source voltage.
4. Disconnect the charger's power cord from the
receptacle
5. Hold the charger firmly and pull out the battery
NOTE
Be sure to pull out the battery from the charger after
use, and then keep it.
How to make the batteries perform longer
(1) Recharge the batteries before they become completely
exhausted.
7
Indications of the pilot lamp
Lights for 0.5 seconds. Does not light for
0.5 seconds. (off for 0.5 seconds)
Blinks
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 seconds. (off for 0.5 seconds)
Blinks
Lights for 0.1 seconds. Does not light for 0.1
seconds. (off for 0.1 seconds)
Flickers
Temperatures at which the
battery can be recharged
0°C – 50°C
UC10SFL
Approx. 40 min.
(1) Pilot lamp indication
The indications of the pilot lamp will be as shown in
Table 1, according to the condition of the charger or
the rechargeable battery.
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
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, first let the battery cool, then start
charging.
When the pilot lamp flickers (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 confirm that the battery being charged
with UC10SFL 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.

PRIOR TO OPERATION

1. Setting up and checking the work environment
Check if the work environment is suitable by the
above precautions.
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)
Malfunction in the
battery or the charger