1 Reply Latest reply: Nov 10, 2009 12:58 AM by Techie RSS

How to calculate UPS Run-time

toniow Member
Currently Being Moderated
If I am using the SUA750XL UPS, and my load is 20W (for example):

1. How do I calculate the maximum time that the SUA750XL will last during a power outage?

Can someone please show the calculation?


  • 1. Re: How to calculate UPS Run-time
    Techie =SE= Employee
    Currently Being Moderated

    As far as I know, there is no formula available to calculate the APC UPS runtime. However, the runtime chart of the UPS can be found on APC web site.
    Click on the below link to view the Smart UPS SUA750XL UPS runtime chart at different load levels.

    Secondly, click here to view the rest of the Smart UPS models runtime chart.

    I hope that this helps. Have a nice day!

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