4
Replacing the battery
BUM150RA
26
Additional Information
When the battery replacement LED of the UPS lights up/blinks and beeper sounds, press
the "Buzzer Pause/Test" switch for 0.5 seconds to stop the beeper. (Lighting/blinking of
"battery replacement" LED does not disappear.)
Notification that the battery needs to be replaced
This Battery life counter function notifies you with LED of the UPS display and beep sound
when the battery needs to be replaced.
The battery life is determined by the counter function. The battery life counter operates
while commercial power is supplied after shipment. (When the ambient temperature of the
battery is higher than 25°C, the value of the counter will be incremented at a faster pace.)
Notes
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.
Refer to the below-shown reference data " 10-3 Battery life " of the UPS manual
(BU150R) for the details about the life of the battery.
Even if battery is storage condition, deterioration proceeds. The higher the temperature i,
the shorter battery life.
■
Guidelines for how often to check the battery
Average ambient
temperature
6-month check
Monthly check
40
℃
For the first 1 years after
starting use
When 1 years or more have
passed after starting use
30
℃
For the first 3 years after
starting use
When 3 years or more have
passed after starting use
25
℃
For the first 4 years after
starting use
When 4 years or more have
passed after starting use
