8
Safety precautions
Do not short the battery with metal objects.
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Doing so could cause an electric shock, fire or burn.
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Some electrical energy still remains inside the spent battery.
Do not put the battery into fire or do not break it.
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The battery may explode or leak dilute sulfuric acid.
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A battery can present a risk of electrical shock and high short circuit current.The following
precautions should be observed when working on batteries:
1) Remove watches, rings, or other metal objects from the hands.
2) Use tools with insulated handles.
3) Wear rubber gloves and boots.
4) Do not lay tools or metal parts on top of batteries.
5) Disconnect charging source prior to connecting or disconnecting batteries terminals.
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Servicing of batteries should be performed or supervised by personnel knowledgeable of
batteries and the required precautions. Keep unauthorized personnel away from batteries.
Notes
When moving the unit from a cold place to a warm place, leave it for several hours
before using it.
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If the unit is moved to a warmer place and the power is turned on soon, the unit failure may occur due to
condensation to the unit.
Charge the battery for at least 12 hours soon after purchasing the unit.
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If you do not use the unit for a long time after the purchase, the property of the battery may deteriorate and
the battery may become unusable.
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To charge a battery, connect the AC input plug of the unit to a wall outlet (commercial power).
When storing the unit, charge the battery for at least 12 hours and turn off the power switch.
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Even if the unit is not used, the battery gradually discharges, and if it is left for a long time, it goes into an
over discharge state.
The backup time may become shorter or the battery may become unusable.
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The storable period of the built-in battery of the unit is 6 months after complete charging.
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If you want to store the battery longer than 6 months, connect the AC input plug of the unit to a commercial
power wall outlet for at least 12 hours within 6 months.
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Turn off the power switch of the unit during storage.
Do not short the output lines of the unit each other and the output lines to the ground.
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The unit may fail.
Do not connect the AC input plug of the unit to its Power Supply Output Receptacle
during the Battery Mode.
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The unit may fail.
Do not install or store the unit in a place exposed to direct sunlight.
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The rise of temperature may cause the built-in battery to deteriorate rapidly and become unusable.
Do not perform a withstand voltage test.
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The input circuit has a built-in surge absorption device. A withstand voltage test may break it.
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When performing an insulation resistance test, use the 250VDC range.
Caution
(for battery replacement)