Hitachi C6DD User Manual

Page 16

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15

Lights for 0.5 seconds. Does not light for 0.5
seconds. (off for 0.5 seconds)

Lights continuously

Lights for 0.5 seconds. Does not light for 0.5
seconds. (off for 0.5 seconds)

Lights for 0.1 seconds. Does not light for 0.1
seconds. (off for 0.1 seconds)

Lights continuously

Before
charging

While
charging

Charging
complete

Charging
impossible

Blinks
(RED)

Lights
(RED)

Blinks
(RED)

Flickers
(RED)

Lights
(GREEN)

Malfunction in the
battery or the charger

The battery temperature
is high, making
recharging impossible.

Table 1

Indications of the pilot lamp

Charging
impossible

(2) Regarding the temperatures 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.

Table 2 Recharging ranges of batteries

(3) Regarding recharging time

Depending on the combination of the charger and
batteries, the charging time will become as shown
in Table 3.

Temperatures at

Rechargeable batteries

which the battery

can be recharged

EB1814. EB18B. EB1820

–5°C – 60°C

EB1830H

0°C – 45°C

Table 3 Charging time (At 20°C)

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

After operation, pull out batteries from the charger
first, and then keep the batteries properly.

Charger

UC24YFA

Battery

EB1814

Approx. 40 min.

EB18B, EB1820

Approx. 50 min.

EB1830H

Approx. 70 min.

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 first
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

⅜ 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 batetery has just
been used, the pilot lamp of the charger lights up
green. In such a case, first let the battery cool, then
start charging.

⅜ When the pilot lamp flickers in red (at 0.2-second

intervals), check for and take out any foreign objects
in the charger’s battery installation hole. If there are
no foreign objects, it is probable that the battery
or charger is malfunctioning. Take it to your
authorized Service Center.

⅜ Since the built-in micro computer takes about 3

seconds to confirm that the battery being charged
with UC24YFA is taken out, wait for a minimum of
3 seconds before reinserting it to continue charging.

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