UPS battery backup time calculation simple formula...#upsbattery

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battery backup calculation without considering other losses. .

I will do next video with losses
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what if we are using 2 batteries ( 200ah+200ah) then how we shall calculate?

poolts
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NEED HELP!

We have a laser hair removal machine using 220-240 volt.
Need 3 hours backup using this machine + 1 ceiling fan + 1tubelight.

Which Kva UPS should I purchase and how many batteries??
Kindly suggest

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