Hitachi UC 24YC Handling Instructions Manual page 18

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, EB18B, EB24B
EB9H, EB12H, EB14H, EB930H, EB1230H,
EB1430H, EB2430H
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
Temperatures at which the battery can be recharged
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.
-5°C – 40°C
-5°C – 60°C
0°C – 45°C
-
Malfunction in the
battery or the charger
The battery tempera-
ture is high, making
recharging impossible.