5 Maintenance and inspection
S8BA-24D24D□□□LF
5
3. Calculate the initial value of the backup time for the total capacity of the connected
devices from the graph below.
▪ Graph of backup time (graph of initial values for products that have not been used
at 25°C). The backup time becomes shorter than the graph (table) below when
temperature is lower.
0
10
20
30
40
50
60
70
80
90
100
110
120
0 60 120
180 240
300 360
420 480
Capacity (W)
Backup time (Minutes)
▪ The smaller the capacity of connected devices becomes, the longer the backup
time becomes.
Backup time table (Time unit: minutes)
Model
Capacity（Watt)
30 60 90 120 180 240 300 360 420 480
120W 29 14 9 6
240W 58 29 19 15 9 6
360W 87 43 28 22 14 10 8 6
480W 119 59 39 29 19 15 11 9 8 6
*These backup times are for reference only. Times may vary according to battery life and
external environmental conditions (temperature, etc).
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