Panasonic EY7549 Operating Instructions Manual page 16

[Battery Charger]
Charging
CAUTION:
• The charger is designed to operate on
standard domestic electrical power only
as stated in the rating plate. Charge
only on the voltage indicated on the
rating plate of unit. e.g.230v / 50Hz.
• Do not attempt to use it on any other
voltage or frequency rating!
• If the temperature of the battery pack
falls approximately below −10°C (14°F),
charging will automatically stop to pre-
vent degradation of the battery.
• The ambient temperature range is
between 0°C (32°F) and 40°C (104°F).
If the battery pack is used when the bat-
tery temperature is below 0°C (32°F), the
tool may fail to function properly.
• Use the charger at temperatures
between 0°C and 40°C, and charge
the battery at a temperature similar to
that of the battery itself. (There should
be no more than a 15°C difference
between the temperatures of the bat-
tery and the charging location.)
• When charging a cool battery pack
(below 0°C (32°F)) in a warm place,
leave the battery pack at the place and
wait for more than one hour to warm up
the battery to the level of the ambient
temperature.
• Cool down the charger when charging
more than two battery packs consecutively.
• Do not insert your fingers into con-
tact hole, when holding charger or any
other occasions.
CAUTION:
To prevent the risk of fire or damage
to the battery charger.
• Do not cover vent holes on the char-
ger and the battery pack.
• Unplug the charger when not in use.
NOTE:
Your battery pack is not fully charged at
the time of purchase. Be sure to charge
the battery before use.
How to charge
1. Plug the charger into the AC outlet.
2. Insert the battery pack firmly into the
charger.
1. Line up the alignment marks and
place the battery onto the dock on
the charger.
2. Slide forward in the direction of the
arrow.
3. During charging, the charging lamp will
be Illuminated.
When charging is completed, an inter-
nal electronic switch will automatically
be triggered to prevent overcharging.
• Charging will not start if the battery
pack is warm (for example, immedi-
ately after heavy-duty operation).
The orange standby lamp will be
flashing until the battery cools down.
Charging will then begin automati-
cally.
4. The charge lamp (green) will flash
slow ly once when the battery is ap-
proxi mately 80% charged.
5. When charging is completed, the charg-
ing lamp in green color will turn off.
6. If the temperature of the battery pack
is 0°C or less, charging takes longer to
fully charge the battery pack than the
standard charging time.
Even when the battery is fully charged,
it will have approximately 50% of the
power of a fully charged battery at nor-
mal operating temperature.
7. Consult an authorized dealer if the
charging lamp (green) does not turn off.
8. If a fully charged battery pack is in-
serted into the charger again, the
charging lamp lights up. After several
minutes, the charging lamp in green
color will turn off.
9. Remove the battery pack while the
battery pack release button is held up.
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Alignment marks
Battery pack
release button