UPS desaster

[h90]

I have 2 amplfier which should run all the time.

To have it safe in case there is an electric outage I have them on a normal UPS for computer.

Now I just came back and everything was shut down.

It seems when the electric fails and the ups is drained it doesn't turn on again when the electric comes again.

Is this normal?

There is a button in front of it. I pressed that button and everything started again.

Normal?

Solutions?

[Pib]

What does the UPS instructions say?

[Tywais]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

[muratremix]

UPS batteries also have a lifetime. 2-3 years and they are dead.

Most likely your old ups needs a battery replacement.

[h90]

What does the UPS instructions say?

Instructions and webpage are in Thai only :-(

syndome is the brand.

[h90]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

Do you know a common not expensive model that come back on line?

(So I can simply buy it and forget that problem)

thx

[astral]

Does a computer UPS have enough output to handle your amp?

Generally they are only designed for 10 minutes to give you time

to shutdown the computer.

Like Tywais I have a large UPS (600W x 4 hours) in my house and it definitely will

recover as soon as power is restored, it also provides over voltage protection.

[jbrain]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

Do you know a common not expensive model that come back on line?

(So I can simply buy it and forget that problem)

thx

I would think this has nothing to do with your UPS, but rather with your amplifier.

Once they are switched off due to a poweroutage,and the UPS running out of battery, it will not start again, regardless of how much power your UPS send to it.

I think a half decent amplifier uses at least about 2000W

[Tywais]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

Do you know a common not expensive model that come back on line?

(So I can simply buy it and forget that problem)

thx

I would think this has nothing to do with your UPS, but rather with your amplifier.

My understanding it is the UPS that doesn't come back up after it reaches it's battery discharge exhaustion. Mine, when the power goes off it runs off the battery than a few minutes before the battery is completely discharged it (UPS) will shut itself off. When power comes back up the UPS comes back online as does the attached equipment.

2kW amplifier? Thai labeling perhaps but not likely real power and not at normal volume levels. Seen portable Thai boom boxes saying 600 W per channel and you can hold it in one hand.

[jbrain]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

Do you know a common not expensive model that come back on line?

(So I can simply buy it and forget that problem)

thx

I would think this has nothing to do with your UPS, but rather with your amplifier.

My understanding it is the UPS that doesn't come back up after it reaches it's battery discharge exhaustion. Mine, when the power goes off it runs off the battery than a few minutes before the battery is completely discharged it (UPS) will shut itself off. When power comes back up the UPS comes back online as does the attached equipment.

2kW amplifier? Thai labeling perhaps but not likely real power and not at normal volume levels. Seen portable Thai boom boxes saying 600 W per channel and you can hold it in one hand.

You're right, I exaggerated a bit. My marantz is rated at 650W power consumption.

You're also right that the OP was talking about the UPS not coming back online, but even if he has a UPS that comes back online that doesn't mean his amplifiers will switch on again.

And I think that is his biggest concern.

[astral]

The average computer UPS is rated at 400-500W for about 10 minutes maximum

assuming a battery in good fettle

My own UPS is only rated at 600W

and I know my amp can draw >1kW at full power

but then, who runs at full power??

Much less in standby mode.......................

Which I assume is your case here???

[farang62]

Use only APC UPS's. go to thier website and it easy to size them. Readly avaliable here in Thailand.

Since I cahanged my systems and my customer systems to APC we have never had a issue, just change the batteries whan needed.

Ya they cost more, but things that work and do what they are supposed to are not cheap.

[craigt3365]

What does the UPS instructions say?

Instructions and webpage are in Thai only :-(

syndome is the brand.

I have the same brand. We lost power all day a few months ago. The UPS is brand new, but of course, a cheaper model. It did not power up after the battery died.

It seems there's some sophisticated app with this device. But it's all in Thai, so I've never bothered. Might be a button or dial in there for this feature?

[h90]

Some will stay shut off when power fails and battery depletes and some won't depending on make/model. I have a 1kW APC for my servers and it will automatically come back on line after power returns even when the battery depletes.

Do you know a common not expensive model that come back on line?

(So I can simply buy it and forget that problem)

thx

I would think this has nothing to do with your UPS, but rather with your amplifier.

Once they are switched off due to a poweroutage,and the UPS running out of battery, it will not start again, regardless of how much power your UPS send to it.

I think a half decent amplifier uses at least about 2000W

no these aplifier, when get electric they start to load the mp3 from USB or SD card. it need far less than 2KW. They are only turned on 10 %, and can play a long while on the USP.

After the USP is empty, it needs the front button of the USB to start it again

[h90]

The average computer UPS is rated at 400-500W for about 10 minutes maximum

assuming a battery in good fettle

My own UPS is only rated at 600W

and I know my amp can draw >1kW at full power

but then, who runs at full power??

Much less in standby mode.......................

Which I assume is your case here???

no they are not in standby they play sound on 27 tweeter.

27 tweeter seems many, but no it is not, that are very thiny speaker, just making a low level sound in one room.

(for bird nest farming), so the amplifier runs 24/7 but at low Watt.

UPS is a bigger one (1000 something? 1000 W?? or 1000Wh???).

[Crossy]

Both of my Syndome UPSs stay off if they run flat, never found any way to make them come back on without pushing the button

If anyone knows how to bypass the no-load shutdown of these units I would be grateful too

[h90]

Both of my Syndome UPSs stay off if they run flat, never found any way to make them come back on without pushing the button

If anyone knows how to bypass the no-load shutdown of these units I would be grateful too

If I have the time, I'll take it appart and have a look, if there is a quick fix to the electronic. But if it isn't very low tech, I'll most probably fail.

I consider to remove it. 5 min without electric is better than 1 week (or1 month) without electric as no one stays to push the button.

[h90]

End of the story......

1) yes it does not switch on after a power failure

2) yes the battery was dead after roughly 2 1/2 years

What I don't understand: a lead battery with proper loading electronic and rarely use, should last a decade or longer. What are they doing????

[keeniau96]

Most UPS units are rated as VA (Volt*Amperes), which is not AC watts. Multiply by 0.7 (close enuff) to get the watt rating. Agreed with above poster that APC is just about the only quality UPS available in the LOS.

[astral]

UPS are usually rated in VA or watts.

1000W means that at 220V it will provide 4.5Amp of current

The limiting factor is the capacity of the battery

I currently have a 150Ah battery, ie it can provide 30A for 5 hours

30A x 12V = 360W

Take more current and the time becomes shorter

Physically it is about 4 times the size of the battery in my car and very heavy

[Pib]

End of the story......

1) yes it does not switch on after a power failure

2) yes the battery was dead after roughly 2 1/2 years

What I don't understand: a lead battery with proper loading electronic and rarely use, should last a decade or longer. What are they doing????

But they simply don't due to slow, destructive chemical actions going on in the batteries even when being fully charged the great, great majority of the time. And of course there can be big differences in quality and manufacturing of like batteries, especially in commonly used lead-acid, NICD, and lithium-ion batteries. I've read in several places that 2 to 4 years is the expected life span of a lead acid battery in a UPS. Additionally, I've got lead-acid batteries in two standby/emergency lights...one battery recently failed after approx. 3 years....and of course when it comes to getting batteries exposed to high temp/humidity like in Thailand that has a negative effect on their life span. By the way, the emergency battery light that failed lives in a room that is air conditioned about 12 hours a day....the other light with its battery still in good shape lives in a room that is air conditioned 24 hours a day....I expect the shifting back and forth between cool and hot every 24 hours had a negative effect on the failed battery. And don't get me started about lead-acid "car/truck" battery lifespan in Thailand...the tropics is just rough on batteries.

I also agree with other posters giving a thumbs up to APC...it's the UPS I have also on my Recordable DVD player and TV box....the wife got tied of brief 1 to 5 seconds power outages which would ruin the DVD recording of her SOAP shows. The UPS has made that problem a thing of the past.

From looking at the instructions for my APC UPS, it does say it will automatically turn itself when reaching a really low battery level, but it don't say anything about automatically turning itself back on when the power comes back on--I expect it would not.

[h90]

my guess is that the batteries are all the time feed with electric, as the UPS doesn't has a smart electronic to shut it off.

The boat and caravan lead-acid batteries my parents have last 5-10 years and that are car batteries which are designed for short time high power at low weights. I guess there are other ones designed for longer life. There are even some you can take appart the cells and service them (backup batteries for power plants for example.

2 years is really redicoulos for lead batteries which are the most forgiving technology. Not really much that can brake.

But in my case it is not that important that it is without interruption so I just put the usp in the junk and let it run direct.

[astral]

My unit offers two options.

APS Automatic Power Supply

where the battery only supplies power if the mains is off, with a brief switchover time < 1sec

UPS Uninteruptable Power Supply

where the battery is always providing power, with a constant charge

Now APS mode is no good for a computer but is fine for my home theatre setup

where a brief second of switching time does not matter.

Most of the boxes have sufficiently large capacitors that they do not notice.

My technician tells me that APS will give me much longer battery life

provided I remember to top up the battery water regularly. Very important in hot weather.

I suspect APS will do the job for the OP?

[Pib]

my guess is that the batteries are all the time feed with electric, as the UPS doesn't has a smart electronic to shut it off.

The boat and caravan lead-acid batteries my parents have last 5-10 years and that are car batteries which are designed for short time high power at low weights. I guess there are other ones designed for longer life. There are even some you can take appart the cells and service them (backup batteries for power plants for example.

2 years is really redicoulos for lead batteries which are the most forgiving technology. Not really much that can brake.

But in my case it is not that important that it is without interruption so I just put the usp in the junk and let it run direct.

Expect you had "deep cycle" lead-acid batteries along with special charger for those deep cycle batteries...you can get some serious life out of that type of setup if that type of setup will meet a person's electrical load needs.

[h90]

my guess is that the batteries are all the time feed with electric, as the UPS doesn't has a smart electronic to shut it off.

The boat and caravan lead-acid batteries my parents have last 5-10 years and that are car batteries which are designed for short time high power at low weights. I guess there are other ones designed for longer life. There are even some you can take appart the cells and service them (backup batteries for power plants for example.

2 years is really redicoulos for lead batteries which are the most forgiving technology. Not really much that can brake.

But in my case it is not that important that it is without interruption so I just put the usp in the junk and let it run direct.

Expect you had "deep cycle" lead-acid batteries along with special charger for those deep cycle batteries...you can get some serious life out of that type of setup if that type of setup will meet a person's electrical load needs.

No normal car batteries, but used only a few month per year and very light use. Starting the two stroke boot engine with a massiv car battery doesn't hurt the battery much.

In autumn they are charged full, in spring they are taken out, charged full and than used in a gentle way every couple of days.

Not much different than a UPS which battery sits idle 99 % of the time. Only these are batteries with liquid.

[h90]

My unit offers two options.

APS Automatic Power Supply

where the battery only supplies power if the mains is off, with a brief switchover time < 1sec

UPS Uninteruptable Power Supply

where the battery is always providing power, with a constant charge

Now APS mode is no good for a computer but is fine for my home theatre setup

where a brief second of switching time does not matter.

Most of the boxes have sufficiently large capacitors that they do not notice.

My technician tells me that APS will give me much longer battery life

provided I remember to top up the battery water regularly. Very important in hot weather.

I suspect APS will do the job for the OP?

The drawing in the guide which I can't read shows what you describe at APS.

I think it is not the technology. The problem is: "who buys cheap who buys double".

It was the cheapest UPS at this power with a big margin to the others.