Hitachi UC 18YKSL Instruction Manual page 10

English
○ Regarding recharging time
Table 4 shows the recharging time required according to the type of battery.
Battery Capacity
1.3 Ah
1.5 Ah
2.0 Ah
2.5 Ah
3.0 Ah
4.0 Ah
5.0 Ah
NOTE: The recharging time may vary according to the ambient temperature.
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. Hold the charger fi rmly and pull out the battery.
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.
How to make the batteries perform longer.
○ 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.
○ 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.
10
Table 4 Recharging time (approx. min.) at 20°C
14.4 V
BSL1415S
BSL1415
BSL1415X
BSL1420
BSL1425
BSL1430
BSL1440
BSL1450
Li-ion BATTERY
Battery Voltage
35 min. BSL1815S
BSL1815
40 min.
BSL1815X
60 min. BSL1820
75 min. BSL1825
90 min. BSL1830
120 min. BSL1840
150 min. BSL1850
18 V
35 min.
40 min.
60 min.
75 min.
90 min.
120 min.
150 min.