Emerson SolaHD SDU 500A - Battery Back-Up Times; Table 3: Battery Back-Up Time Chart

SDU AC-A Series
A272-290 Rev. 5 07/2018
Page: 12
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
!
WARNING
• 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.
Note: Run times in this table are approximate. They are based upon new, fully charged standard battery modules at a temperature
of 25°C (77°F) with 100% resistive UPS loading. Run times listed above can vary due to manufacturing variances of the individual
batteries.