Hitachi UC 18YML2 - Page 7

-5-
4-1-5. Easy-to-read visual display of charging status through constant lighting or flashing
of red and green pilot lamp
Indications of the pilot lamp
Before
charging
Blinks
(Red)
0.5 sec. ON 0.5 sec. OFF
During
charging
Lights
(Red)
Stays ON continuously
Charging
completed
Blinks
(Red)
0.5 sec. ON 0.5 sec. OFF
Charge
status lamp
(Red)
Charging
impossible
Flickers
(Red)
0.1 sec. ON 0.1 sec. OFF
Battery or charger is
faulty.
Overheat
lamp
(Green)
Overheat
standby
Lights
(Green)
Stays ON continuously
Battery is overheated.
Unable to charge.
(Charging will
commence when the
battery is cooled.)
DC charge
status lamp
(Green)
Charging
impossible
Blinks
(Green)
0.5 sec. ON 0.5 sec. OFF
DC 12 V supply is
faulty.
NOTE: When in standby for cooling a battery, the UC 18YML2 cools the overheated
battery by cooling fan. (During DC charging, the cooling fan does not rotate.)
• Rechargeable battery temperature range
The table below shows the rechargeable battery temperature range. Overheated batteries should be
cooled to the specified temperature before recharging.
Rechargeable battery temperature range
32°F to 122°F (0°C to 50°C)