What do you want to plug into it and how much battery do you want to buy? My point is that by using them essentially as capacitors they can build up and discharge the bursts to ease over the typical overbuilt multi-circuit house.

This particular battery has five circuits but obviously it won't power them all full blast for very long. Hell, it won't power more than one at full blast. But it's got the ability to share the load and it works out for me.

There's an option for an additional same size battery to daisy chain to it for another thousand bucks or so but I had no need for it.

My goal was simply to be able to limp overnight and run a heater and infrared heat emitters and some lights and my refrigerator and freezer and expect that they'll have fix the black out by the morning. If not, I'll turn off the heater and limp along some more. I'm sure I can limp along for a couple of days on it. But I would be very careful while I'm doing it to use as little as possible.

But when I'm not in blackout state I can use it in my juvenile grow closet. Seedlings and early vegetation. I run three lights that max out around 600 w and that's fine for the circuit that it's shared with. But then there might be a burst of a heater since it's in a cold room overnight and the lights are on for part of it so the heater can come on at the same time and that might blow the circuit depending on what's running in the next room over.

On the other hand, the closet might start to overheat so I have a paint drying air mover fan that will push air into that closet and exhaust it multiple times over in a couple of seconds. That's a high draw fan. That could trip the circuit with the lights on at the same time.

So I simply use the battery as a buffer. It will never draw from the wall more than the wall can handle and the short bursts of whatever I do for a heating or cooling will never push the battery circuits beyond what they can do.

Number one I would not trust its power in a real data center. Clean power is different from wall power.

Other than that, software interface for communication with computers and shutdown is way different from software interface to consumers. A UPS has to interface with generators as well.

And simply basic quality. What's the uptime on the battery itself? Vastly less than what you would expect on your computer. This thing will glitch far sooner than a real UPS. This thing is for household devices.

I'm simply stating the batteries have gotten much much better and can be used for a variety of different applications, which they could not in the past and still of course would not be done via a "real" UPS, but these applications are not data center related.

I'm sure there's a variety of data center specific things that real UPS's handle that this thing does not.

I yank the plug on this thing. There is definitely a power fluctuation in the attached devices. I would never allow that in my data center. This is for a household devices, not computers, so with that in mind there are new applications that can be thought of.