Hitachi NR 1890DC Manuel D'instructions page 17

(1) Pilot lamp indication
The indications of the pilot lamp will be as shown in
Table 2, according to the condition of the charger or
the rechargeable battery.
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 3, and batteries that have
become hot should be cooled for a while before being
recharged.
Table 3 Recharging ranges of batteries
Rechargeable
batteries
BSL1830C
(3) Regarding recharging time (At 68°F (20°C))
Table 4 Charging time
Charger
Battery
BSL1830C
NOTE
The charging time may vary according to temperature
and power source voltage.
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
0.5 seconds. (off for 0.5 seconds)
Blinks
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
32°F–104°F
(0°C–40°C)
UC18YFSL
Approx. 45 min.
Table 2
4. Disconnect battery charger from the receptacle.
CAUTION
Do not pull the plug out of the receptacle by pulling
on the cord.
Make sure to grasp the plug when removing from
receptacle to avoid damaging cord.
5. Remove the battery from the battery charger.
Supporting the battery charger with hand, pull out the
battery from the battery charger.
NOTE
Be sure to pull out the battery from the battery
charger after use, and then keep it.
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.
English
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)
Malfunction in the battery or
the charger
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