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9
9
. BATTERY CHARGER
This explains basic information related to charger to help you easily understand and use it. This
includes the contents from the way to install a charger to tips for emergency situations. This is focused
on practices aiming to be usefully utilized in the field.
1)
BASIC INFORMATION
(1)
What is charger
Charger is a device which makes a battery accept D.C electricity under optimal condition as it
transforms A.C provided from external source of electricity.
The charger is a constant-current and constant-voltage way, SCR type charger that it has
advantages as follows
Even though A.C input voltage fluctuates within 10% of rated voltage (220/380/410/440V), the
current and voltage provided to the battery are stable.
As minimizing the increase of temperature while charging a battery, it minimizes the stress on the
battery.
The noisy of charger is minimal but the charging efficiency is very high.
It prevents from under charging and overcharging.
Therefore, it helps the battery to maintain its performance for longer time and to prolong the life of
the battery.
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2)
Notice on caring chargers
If any abnormal status is found while using a charger, immediately stop using and check the
charger. If it is impossible to take an appropriate measure for yourself, please apply for A/S.
While charging, hydrogen and oxygen gas is produced. Use or approach of fire should be strictly
prohibited.
Keep clean to prevent from sneak current and attack on the interface and surroundings of the
battery.
Check the electrolyte of the battery every week and provide distilled water immediately if it is
required. ( Electrolyte has to be provided between 10~12mm level on the positive plate inside
storage battery)
If battery liquid temperature becomes over 55 C, charging should be stopped.
If it is continued,
- the appearance is transformed
- and metal area can be attacked as electrolyte overflows
Electric forklift truck using battery should be charged as soon as the charging lamp is on while
driving. As batteries are internally discharged naturally if they are deposed for a long time, charge
them once or twice a month to prevent from reducing the lives of batteries.
When a green sign is on among charging status indication lamps, please notify that it is not
converted as equalized charge for stabilization of charging status.
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