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7. Measuring the backup time (checking the discharge time of the battery)
(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 (initial value for product that has not been used)
● The smaller the capacity of connected devices becomes, the longer the backup time becomes.
Connection capacity (total capacity) (W: Watt)
<Reference diagram>
Backup time (min.)
0
60
90
120
180
180
270
240
360
300
450
: BY50FW
: BY75SW
3.5
5
10
20
30
40
50
60
BY50FW
BY75SW
Backup time
(20˚C, initial value)
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