Hitachi UC 14YF2 Handling Instructions Manual page 17

English
CHARGING
Before using the power tool, charge the battery as
follows.
1. Connect the charger's power cord to the receptacle.
When connecting the plug of the charger to 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. 1.
Table 1
Before
charging
While
The pilot
charging
lamp lights
or blinks in
Charging
red.
complete
Charging
impossible
The pilot Charging
lamp lights impossible
in green.
(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.
Table 2 Recharging of batteries that have become hot
Rechargeable batteries
EB7, EB9
EB12
EB7S, EB7G
EB9S, EB9G, EB9B, EB9M, EB924
EB12S, EB12G, EB12B, EB12M, EB1224
EB14S, EB14B, EB1424
EB9H, EB12H, EB14H, EB930H, EB1230H, EB1430H
(3) Regarding recharging time
Table 3 shows the recharging time required according to the type of battery.
Table 3 Recharging time (approx. min.) at 20°C
Battery voltage
(V)
1.3 Ah
7.2 V EB7, EB7S 45 min. EB7G
EB9
9.6 V 45 min. EB9G
EB9S
EB12
12 V 45 min. EB12G
EB12S
14.4 V EB14S 45 min.
: Ni-MH batteries
NOTE: The recharging time may vary according to the ambient temperature and the power supply voltage.
16
Indications of the pilot lamp
Blinks Lights for 0.5 seconds. Does not light
for 0.5 seconds. (off for 0.5 seconds)
Lights Lights continuously
Blinks Lights for 0.5 seconds. Does not light
for 0.5 seconds. (off for 0.5 seconds)
Flickers Lights for 0.1 seconds. Does not light
for 0.1 seconds. (off for 0.1 seconds)
Lights Lights continuously
Battery capacity (Ah)
1.7 Ah 2.0 Ah
55 min. —
EB9B
55 min. 60 min. EB9H
EB9M
EB12B
55 min. 60 min. EB12H
EB12M
— — EB14B 60 min. EB14H
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 1)
(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.
Temperatures at which the battery can be recharged
-5°C – 40°C
-5°C – 60°C
0°C – 45°C
2.2 Ah
— — —
70 min. EB924
70 min. EB1224 75 min. EB1230H 90 min.
70 min. EB1424 75 min. EB1430H 90 min.
Malfunction in the
battery or the charger
The battery tempera-
ture is high, making
recharging impossible.
2.4 Ah 3.0 Ah
— — —
75 min. EB930H 90 min
—