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5-2 Replacing the battery
5 Maintenance and inspection
S8BA-24D24D
□□□
LF
75
5
5-2-1 Notification that the battery needs to be replaced
When battery replacement becomes necessary, the status indicator starts displaying “
”.
The battery life is determined by the counter function. The battery life counter operates
while input 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 battery used in the unit has a limited lifespan. The life varies depending on
your use environment and backup frequency.
▪
The nearer the end of the life is, the more rapidly deterioration proceeds.
The battery deteriorates even if it is stored. The higher the temperature is, the
shorter the life becomes.
■
Guidelines for how often to check the battery
Average
ambient
temperature
6-month check
3-month check
55°C
For the first year after
starting use
When 1 year or more have
passed after starting use
50°C
For the first 1.5 years
after starting use
When 1.5 years or more have
passed after starting use
40°C
For the first 3 years
after starting use
When 3 years or more have
passed after starting use
25°C
For the first 6 years
after starting use
When 6 years or more have
passed after starting use