9.0 Battery Back-Up Time
The UPS has an internal 12V sealed Valve Regulated Lead Acid (VRLA) rechargeable battery.
Models
SDU 500A, SDU 500A-5
SDU 850A, SDU 850A-5
VA/Watts
500/300
850/510
Battery
YUASA NPW36-12
YUASA NPW45-12
Load Level
Approximate Back-Up Time (Minutes)
Back-Up Time (Minutes)
10%
120
78
20%
51
34
30%
29.5
17
40%
19.5
11
50%
16
9
60%
11
6.5
70%
8
5
80%
6.5
3.5
90%
5
2.5
100%
4
2
Table 3. Battery Back-Up Time Chart
Do not attempt to open the UPS or replace the battery.
Call SolaHD Technical Support for further instructions.
Do not mount the UPS in upside down orientation.
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| 9.0 Battery Back-Up Time
