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42 points
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Was unaware UPSes even talked to the computers they power, thought they were just backup batteries

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47 points

They can connect via USB so you can do things like perform a clean shutdown when it loses power

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8 points

Don’t forget rs232 and Ethernet! 😁

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3 points

I’m picking a brand for a service offering HaaS. And am hoping I can find a brand that has central management.

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1 point

My understanding is that more advanced ones will tell the computer when they’ve been switched to battery power and how long they can expect it to last. In the worst case, the system can save to disk and shut down right before the UPS is about to cut it off.

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3 points

It’s possible for them to tell the computer to shutdown when the battery is getting low

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6 points
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Yep even mid range ones did so way back in the early 90s. It was a common fairly cheap feature that used rs232 mostly. In those days non unix systems did not care as much if powered down without warning. So us early (me 1996) Linux users really found it useful to have the ups initiate shutdown before it died. Windows users of the time only tended to worry if they had the PC running when not sat their. Few had internet at home in the early 90s and those that did were dil up. So for many it was not worth the cost when you could just turn off the PC if a power cut was long term.

Now with most people using laptops for casual use. I really cant imagin anyone buying one without the feature.

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5 points

If the computer gets notified that the battery has been activated, then it can save files, gracefully exit programs, etc. before power loss

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