Since the electricity in Lebanon is becoming worse and worse everyday I was wondering if I could get a UPS to power my router for up to 3 or 4 hours.

Is it possible? Any ideas?
He said up to 3 or 4 hours, 650VA wont help in this case, I think you need a UPS with external Battery (ies) not sure, probably someone else could help.
Aly wroteHe said up to 3 or 4 hours, 650VA wont help in this case, I think you need a UPS with external Battery (ies) not sure, probably someone else could help.
I have a 600VA UPS and I run my modem + router + cordless phone for 5+ hours.
Weird, I have PCE650 VA I run my router + cordless phone, it can last 20 mins max.
Aly wroteWeird, I have PCE650 VA I run my router + cordless phone, it can last 20 mins max.
You need to change your battery.
When you change your battery make sure you charged it for at least 8 hours
Guys , are you talking about back-up UPS ( internal battery ) or the one with external batteries.

back-up UPS without load (only internal power loss) will not last more than 30 minutes max .

i think AvoK95 is not talking about back-up UPS.
solo220 wroteGuys , are you talking about back-up UPS ( internal battery ) or the one with external batteries.

back-up UPS without load (only internal power loss) will not last more than 30 minutes max .

i think AvoK95 is not talking about back-up UPS.
Also FYI UPS systems which use external batteries are called APS (Automatic Power Supply)
There are two types of UPS systems as well , there's online and offline. The regular ones which you find at shops are offline, which means that when there is power coming from the wall the connected devices will use that power directly from the wall. They will only use the clean power given by the UPS when it's running on backup (No power on the wall)

An online UPS is a UPS that filters the power coming from the wall and always provide clean voltages. These type of UPS systems are a lot expensive than a regular offline UPS.

I am talking about regular PC backup UPS-s (Which are offline).
A UPS is not measured on how much it lasts. It depends on how many watts you use on that UPS. If you use a 650VA UPS and load a PC on it that draws 300W, it won't last 10 minutes , however if you use a modem which draws almost 30W it will last hours and hours.
Thanks for the clear explanation AvoK95.
A quick look at the wikipedia article gave me the impression that there are now consumer-oriented online UPS, that are quite affordable. Any idea where those can be found? It would be nice not to have to use a surge protector + voltage regulator behind the UPS, and lump the whole system into one.
samer wroteThanks for the clear explanation AvoK95.
A quick look at the wikipedia article gave me the impression that there are now consumer-oriented online UPS, that are quite affordable. Any idea where those can be found? It would be nice not to have to use a surge protector + voltage regulator behind the UPS, and lump the whole system into one.
PC and Parts has a few online UPS-s, but they are quite expensive, you can check them here be aware that they're 350$ +
i have a normal 650 psu powering my pc, today i used it for my wireless router. Put in mind that i have not charged it for about 2 weeks, it worked for almost 2 hours.
@AvoK95
Also FYI UPS systems which use external batteries are called APS (Automatic Power Supply)
But they are the same , the only difference is in the battery capacity or Ampere-hour which leads to the question if there is no No power on the wall how much TIME the UPS will keep my equipment live .

from pc&parts website
MGE Eaton EDX-1000HXL 1000VA Online Double Conversion DX (No Batteries)
they say No Batteries because these online UPS have external batteries so SAMER you have to add the price for batteries .

almost all regular backup UPS (650VA) has a battery of 7 Ah and we could do the math.
for an ideal UPS with fully charged battery, in one hour you could get 7*12 = 84 W .

so a 30 Watt load could be held live for 2.8 hours in ideal case.
AvoK95 wrote
solo220 wroteGuys , are you talking about back-up UPS ( internal battery ) or the one with external batteries.

back-up UPS without load (only internal power loss) will not last more than 30 minutes max .

i think AvoK95 is not talking about back-up UPS.
Also FYI UPS systems which use external batteries are called APS (Automatic Power Supply)
There are two types of UPS systems as well , there's online and offline. The regular ones which you find at shops are offline, which means that when there is power coming from the wall the connected devices will use that power directly from the wall. They will only use the clean power given by the UPS when it's running on backup (No power on the wall)

An online UPS is a UPS that filters the power coming from the wall and always provide clean voltages. These type of UPS systems are a lot expensive than a regular offline UPS.

I am talking about regular PC backup UPS-s (Which are offline).
A UPS is not measured on how much it lasts. It depends on how many watts you use on that UPS. If you use a 650VA UPS and load a PC on it that draws 300W, it won't last 10 minutes , however if you use a modem which draws almost 30W it will last hours and hours.
Correction, many models have embedded limitation on runtime, because cooling system on inverter are not made to sustain long term load.
Those limitations are taken into consideration if the UPS is under high load.
@AvoK95 what 's your 600VA UPS brand/model number?
solo220 wrote@AvoK95 what 's your 600VA UPS brand/model number?
I'm using a 10+ year old APC UPS. There isn't even any model number. It looks like the ones you get custom made.
a month later
did anyone purchase a UPS recently to run their modem for 3 or 4 hours when electricity is out? If yes can you share the name and model?
thank you.
zinger wrotedid anyone purchase a UPS recently to run their modem for 3 or 4 hours when electricity is out? If yes can you share the name and model?
thank you.
Any 550/650VA or lower rated UPS will do. The modem/router is bearly 30Watts.
A PCE 650VA with its internal 7AH battery lasts about 3 hours when powering 2 routers and a cordless phone. I have this setup at home.

The advantage of using PCE is that you can disable the "No Load Shutdown" feature which disables the 5-minute time limit when you have no/negligible load. Other brands may not allow you to remove this limitation.