Hitachi DS 14DSAL Handing Instructions page 10

(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
UC18YRSL
Battery
BSL1430,
Approx. 45 min.
BSL1830
BSL1415X,
Approx. 20 min.
BSL1815X
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 fi rmly and pull out the battery
NOTE
After charging, pull out batteries from the charger fi rst,
and then keep the batteries properly.
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.
Before
charging
While
charging
Pilot lamp (red)
Charging
complete
Overheat
standby
10
UC18YGSL
Approx. 90 min.
Approx. 40 min.
Table 4
Indications of the pilot lamp
Lights for 0.5 seconds. Does not light for
Blinks 0.5 seconds. (off for 0.5 seconds)
Lights continuously
Lights
Lights for 0.5 seconds. Does not light for
Blinks 0.5 seconds. (off for 0.5 seconds)
Lights for 1 seconds. Does not light for 0.5
Blinks seconds. (off for 0.5 seconds)
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
○ When the battery charger has been continuosly used,
the battery charger will be heated, thus constituting
the cause of the failures. Once the charging has been
completed, give 15 minutes rest until the next charging.
○ If the battery is recharged when it is warm due to battery
use or exposure to sunlight, the pilot lamp map light in
green.
The battery will not be recharged. In such a case, let the
battery cool before charging.
○ When the pilot lamp fl ickers 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.
<UC18YGSL>
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 as shown in Fig.
5, 6.
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 4)
(1) Pilot lamp indication
The indications of the pilot lamp will be as shown in
Table 4, according to the condition of the charger or the
rechargeable battery.
Battery overheated.
Unable to charge.
(Charging will commence
when battery cools)