UPS - Uninterruptable Power Supply
Feb 5, 2023 08:39:38 #
misterzee wrote:
That is exactly our setup. The computer stays up, but since our internet is fiber, provisioned by the EMC, it goes down when the power goes down. That little Generac is great, and easy to service too.
I had an odd situation the other day when the power went out. We lost cable, too (phone, TV, computer), yet I received a phone call. In the past, when the cable goes out, the phone goes with it.
Feb 5, 2023 09:06:12 #
Make sure it is sized right- I realized mine didn’t put out enough current for my desktop. We had a series of outages where it would come on for 2-3 seconds, fail, restart after a few seconds, fail again. Computer did not like that, and a hard drive failed- backed up but still a pain to replace and restore. New ups has up to 1kw out which will run things long enough for an orderly shutdown, and keeps the wifi running
Feb 5, 2023 09:57:37 #
Feb 5, 2023 10:33:55 #
At least power outages won't affect the ability to charge one's electric car..😜
Feb 5, 2023 12:57:58 #
jerryc41 wrote:
If you don't have a UPS, I recommend you get one -... (show quote)
My UPS has an automatic shutdown of my computer. A pop-up will tell me that power is off, as if the loss of the lights weren't a clue, and gives me 45 minutes to get things done.
Feb 5, 2023 13:34:41 #
jerryc41 wrote:
There was talk years ago about using 24v batteries in cars. That never got anywhere.
The military uses 24 V batteries in some of their vehicles (or at least they did when I was in. Airplanes also.
The downside of my APC UPSs is that when the power is out and they’re active, they beep constantly - maddening. Fixed that - opened them up and removed the buzzer and replaced the MOVs (which “wear out” over time).
Feb 5, 2023 13:34:44 #
jerryc41 wrote:
If you don't have a UPS, I recommend you get one -... (show quote)
Jerry, I have a large Generac and the power only blinks when we loose power.
I asked the salesman what level Generac I should buy to fit my use, and and when he told me I said I want the next level up.
My PC doesn't reboot and the TV never flickers.
Feb 5, 2023 14:21:42 #
rck281
Loc: Overland Park, KS
jerryc41 wrote:
Definitely.
It still amazes me that a TV can run off a 12v battery.
It still amazes me that a TV can run off a 12v battery.
It really doesn't. The UPS is converting 12 V DC to 115 V AC. The TV is still running off 115 V AC.
I also use UPSs (APC brand) and am very happy with them. I do wish their surge protection had a higher rating. It's fairly easy to find power strips with better surge ratings.
Feb 5, 2023 15:34:23 #
TriX wrote:
The downside of my APC UPSs is that when the power is out and they’re active, they beep constantly - maddening. Fixed that - opened them up and removed the buzzer and replaced the MOVs (which “wear out” over time).
I just turn them off. The beeping is a good way to know the power is off, though.
Feb 5, 2023 15:37:08 #
jerryc41 wrote:
I just turn them off. The beeping is a good way to know the power is off, though.
Of course if you turn them off, then no output, so useless - at least on mine…
Feb 5, 2023 18:03:20 #
I've got both a whole house backup generator and a UPS on my computer. The whole house might lag as much as 3 seconds which will let my computer shutdown but the dedicated UPS has a lag of less than a micro second which keeps everything running. I can run the computer or about 2 hours until the battery is worn down when it beeps to get my attention. My model doesn't support auto shutdown but some do at about 3 times the price.
Feb 5, 2023 18:27:14 #
rck281
Loc: Overland Park, KS
Most (maybe all) APC UPSs support auto shutdown and come with a USB cable to connect to your computer. They use a program called Power Chute BUT you can't let your computer sleep as it won't wake them to shut down. At least this is the way it worked a few years back. I hope they fixed it by now.
Feb 5, 2023 18:49:18 #
Feb 5, 2023 18:51:19 #
jerryc41 wrote:
There was talk years ago about using 24v batteries in cars. That never got anywhere.
I remember reading last year that the new Maybach S600 was switching to a 60 Volt electrical system.
Feb 5, 2023 19:03:19 #
rck281
Loc: Overland Park, KS
BebuLamar wrote:
But if the computer loses power while it's sleeping you will lose nothing.
That is correct about Hibernation but not sleep. During Sleep the ram is kept powered to avoid losing the contents. During Hibernation the contents of ram are saved to disk which can be restored upon wake.
If you remove power during Sleep, the computer will soon crash (after the power supply capacitors discharge).
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