6
36
The lead battery used in the unit has a limited lifespan.
(The life varies depending on your storage/use environment and backup frequency.)
The nearer the end of the life is, the more rapidly deterioration proceeds.
1. Battery life expectancy (* Not a guaranteed performance)
2. Methods for checking the battery
There are two methods for checking the battery.
• Perform a self-diagnostic test. (See page 30.)
• Measure the backup time. (See page 34.)
By measuring the backup time, the battery life can be determined more accurately.
• When you compare the "initial value of the backup time" you measured and the current
backup time, make the capacity of devices connected to the UPS same as when you mea-
sured the initial value to make judgment accurately.
When maintaining the connected equipment, turn OFF the unit’s power
switch to stop the output, and stop the supply of commercial power.
●
Even if commercial power to the UPS is stopped while it is in operation, the power output of this
unit does not stop and power is supplied from the receptacle.
Do not disassemble, repair, or modify the unit.
●
Doing so may cause an electric shock or a fire.
If fluid leaks from the unit, do not touch the fluid.
●
Doing so may cause blindness or burns.
●
If the fluid contacts your eyes or skin, wash it out with lots of clean water and consult your doctor.
Do not throw the unit into fire.
●
The lead battery in the unit may explode, or leak dilute sulfuric acid.
Do not insert metal objects into the power supply output receptacles of the UPS.
●
Doing so may result in electric shock.
Do not insert metal objects into the battery connectors.
Do not create a short between the connector terminals.
●
Doing so may cause an electric shock.
6-1 Checking the battery
Maintenance and Inspection
6
Caution
(for maintenance)
Ambient temperature
Battery life expectancy
25°C
5 years
35°C
2.5 years
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