BU
60
RE/BU
100
RE
6
39
Caution
When the unit is used in compliance with UL standards or CE marking,battery replacement should be
performed or supervised by personnel familiar with the danger of batteries and the required precau-
tions.
Perform replacement on a stable and
fl
at place.
●
Handle the battery carefully so that you do not drop it.
●
Not doing so could cause injury or burns due to liquid (acid) leakage.
Use a speci
fi
ed battery for replacement.
●
Not doing so may cause a
fi
re.
●
Product model: Replacement battery pack for BU60RE: BUB60RE
Replacement battery pack for BU100RE: BUB100RE
Do not replace the battery in a place where there is
fl
ammable gas.
●
Spark may occur when connecting the battery, which may cause an explosion or
fi
re.
If
fl
uid (dilute sulfuric acid) leaks from the battery, do not touch the
fl
uid.
●
Doing so may cause blindness or burns.
●
If it contacts your eyes or skin, wash it out with lots of clean water and consult your doctor.
Do not disassemble or modify the battery.
●
Doing so could cause dilute sulfuric acid leak, which could cause blindness and burns.
Do not drop the battery and do not expose it to strong impact.
●
Dilute sulfuric acid may leak.
Do not short the battery with metal objects.
●
Doing so could cause an electric shock,
fi
re or burn.
●
Some electrical energy still remains inside the spent battery.
Do not put the battery into
fi
re and do not break it.
●
The battery may explode or leak dilute sulfuric acid.
Do not use a new battery and an old battery at the same time.
●
Dilute sulfuric acid may leak.
The battery can be replaced while the unit is stopped (power supply output stopped).
3. Guidelines for how often to check the battery (measure the backup time)
* The battery deteriorates even if it is stored. The higher the temperature is, the shorter
the life becomes.
Caution
(for
battery replacement
)
6-2
Replacing the battery
Average ambient
temperature
6-month check
Monthly check
25°C
For the
fi
rst 7 years after starting use
When 7 years or more have passed after starting use
30°C
For the
fi
rst 6 years after starting use
When 6 years or more have passed after starting use
40°C
For the
fi
rst 4 years after starting use
When 4 years or more have passed after starting use
50°C
For the
fi
rst 2 years after starting use
When 2 years or more have passed after starting use
* When the battery replacement LED lights up/blinks and beeper sounds, press the beep stop/test
switch for 0.5 seconds to stop the beeper. (Lighting/blinking of “battery replacement” LED does
not disappear.)
* If an input power supply error such as a power failure occurs when replacing the battery while in
operation, backup cannot be performed and output stops.
* Do not replace the battery during backup operation. Output will stop.