Dual socket PSU

[Maslofski]

So ive been looking at the UPS prizes, and theyre weird. For 1600-2200VA you pay around 300€, but once you check the 3000VA range it goes to like 1500€.

 

 

You cant just chain the UPS due to some magical electricity shenanigans, so the best options seems to just get a redundant PSU to hook up two at once, as there are no non redundant ones with multiple inputs for using redundant circuits. 

 

 

This is the only one I was able to find, and its 700W 80+ Gold, for 460€. 

 

Is there any better ones out there that can go in a regular PC?

Would a redundant PSUs logic even properly switch to the second one?

 

[Electronics Wizardy]

Gotta ask, what is your goal here? Longer UPS runtime?

 

Since you re thinking about daisy chaining UPSs(It should work, but less efficent), I'm thinking you need a longer runtime, and in that case getting a bigger battery is probably the solution here, not a redundant PSU. You shoudln't need. a 3000VA UPS for any normal PC.

 

 

[jaslion]

If you want longer battery then get a ups that is plugged into a battery backup

 

https://www.amazon.com/EGO-Power-PST3040-Portable-Included/dp/B07YKXT7GC/ref=sr_1_3?crid=2QCWKY2NMIZDJ&keywords=portable+power+station&qid=1697920998&sprefix=portable+power+station%2Caps%2C203&sr=8-3

 

Stuff like this as a ups gives you a couple minutes as that is what they are designed to do. Whilst stuff like this can give you hours once online.

 

7 minutes ago, Maslofski said:

redundant PSU to hook up two at once

Fyi a redundant psu doesn't always have both running so best case you get a couple minutes extra ontime for a CRAPTON of money invested when you could be approaching the problem from a different way.

[Maslofski]

11 hours ago, Electronics Wizardy said:

Gotta ask, what is your goal here? Longer UPS runtime?

 

Since you re thinking about daisy chaining UPSs(It should work, but less efficent), I'm thinking you need a longer runtime, and in that case getting a bigger battery is probably the solution here, not a redundant PSU. You shoudln't need. a 3000VA UPS for any normal PC.

 

 

yeah, its just to extend the time, as to not loose any time at work when it happens. the 2200VA one i got atm only holds up for a few minutes, which isnt good enough.

as i mentioned, a bigger battery would be 5x the price for 2x the capacity, which is a bad deal, not to mention those would be rack mounted ones.

 

Basically just any way to get multiple inputs to the PSU is what was looking into, not the redundancy itself.

As for the daisy chaining it seems to create a feedback loop that can damage them or just make them switch to battery mode constantly.
 

[Maslofski]

11 hours ago, jaslion said:

If you want longer battery then get a ups that is plugged into a battery backup

 

https://www.amazon.com/EGO-Power-PST3040-Portable-Included/dp/B07YKXT7GC/ref=sr_1_3?crid=2QCWKY2NMIZDJ&keywords=portable+power+station&qid=1697920998&sprefix=portable+power+station%2Caps%2C203&sr=8-3

 

Stuff like this as a ups gives you a couple minutes as that is what they are designed to do. Whilst stuff like this can give you hours once online.

 

Fyi a redundant psu doesn't always have both running so best case you get a couple minutes extra ontime for a CRAPTON of money invested when you could be approaching the problem from a different way.

Putting an engine in an apartment is not an option here. The idea with the two inputs was that when one UPS runs out, it fails over to the other psu that wasnt active before. Any way to switch between the UPS basically

[jaslion]

3 hours ago, Maslofski said:

Putting an engine in an apartment is not an option here.

Sorry I got the wrong product

 

https://www.amazon.com/ECO-FLOW-Ecoflow-Battery-1024Wh/dp/B0BK58D8K4/ref=sr_1_4?crid=2TBEIZ7OZJ9PQ&keywords=ecoflow&qid=1697974629&sprefix=ecoflo%2Caps%2C163&sr=8-4

 

I meant this stuff. Actual batteries. You can find WAY cheaper ones that are very good

 

Basically normal psu<-ups to handle the sudden loss of power<-battery station

 

I mean how long do you want to run your pc without power anyway?

 

Because a UPS is meant to give you MINUTES at best. They use car batteries for longevity sake NOT to keep the lights on long.

 

I have a 1600va and it keeps my desktop at low power on for like 3 minutes maybe. Enough to safely shut down and that is it. Just as it is supposed to.

 

If you want the lights to stay on for a while a 500w battery backup can keep a normal pc that is just doing some internet on for HOURS however upon sudden loss of power it won't keep it on because most aren't designed to give uninterruptible power.

[Electronics Wizardy]

8 hours ago, Maslofski said:

yeah, its just to extend the time, as to not loose any time at work when it happens. the 2200VA one i got atm only holds up for a few minutes, which isnt good enough.

as i mentioned, a bigger battery would be 5x the price for 2x the capacity, which is a bad deal, not to mention those would be rack mounted ones.

 

Basically just any way to get multiple inputs to the PSU is what was looking into, not the redundancy itself.

As for the daisy chaining it seems to create a feedback loop that can damage them or just make them switch to battery mode constantly.
 

You willing to mod the UPS? Id just put a large lead acid battery or two in and your good here. That should easily get your more than enough runtime.

 

What UPS do you have now? What is your load?

 

Daisy chaining should work as the first UPS will go empty, then the second UPS will go empty.

 

How long do you want the battery life to be?