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STP-H600/H1000 Series Instruction Manual
10
5
4
3
2
1
0.5
10 20 30 40
Ambient Temperatures(
)
Life of the Internal Battery (Year)
40
5
Allowable Shelf Life of the Internal Battery (Month)
50
20
30
10
10 20 30 40
Ambient Temperatures(
)
Figure 9.1 Life of the Internal Battery
Figure 9.2 Allowable Shelf Life of the Internal
Battery
9.3 How to Charge the Internal Battery
The battery is charged while the power is "ON," regardless of the operation state of the STP
pump.
After a power failure, charge the battery for approx. 12 times the BATTERY BACKUP time.
For example, when the BATTERY BACKUP time is 6 minutes, it takes approx. 75 minutes
to charge the battery.
If a power failure occurs 2 times within 90 minutes, charge the battery for more than 90
minutes before starting to operate the STP pump.
9-2