It has a fan. Be sure you can return it if it is too noisy.This is available and looks to be able to power my desktop, monitor, notebook and modem/gateway.
-
WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!
7 hour AC mains power outage lead to 45 minutes of partial power delivery with dead desktop PC and gateway. How to protect in future?
- Thread starter Doodski
- Start date
You'll want to work out your max power draw and refer to this...
The fan doesn't come on unless you loose power. It stays on for around a minute, to cool the invertor, after the power is restored.
The fan doesn't come on unless you loose power. It stays on for around a minute, to cool the invertor, after the power is restored.
I just checked my Cyberpower via NUT running on my pfSense router. It reckons i'll get around 2:25 runtime. If forgot that I swapped out my 8 port 1GbE switch for an 8 port 2.5GbE + 10G SFP switch which probably pulls twice as much power....
Note that many consumer UPS will turn themselves off in the event of a power outage with this small amount of load. IIRC, my APC UPS needs at least 45 watts draw to stay on which is why I use the more expensive CyberPower for my comms kit.
Note that many consumer UPS will turn themselves off in the event of a power outage with this small amount of load. IIRC, my APC UPS needs at least 45 watts draw to stay on which is why I use the more expensive CyberPower for my comms kit.
Last edited:
OP
- Thread Starter
- #45
How loud is the fan? I checked with the retailer and they are not returnable due to the battery inside.
OP
- Thread Starter
- #46
Very cool. I have the processor on 800MHz downclocking multiplier reduction to save energy when not doing anything intensive so that helps with runtime. This appears to be a very cool unit...
It is pretty loud and annoying when it's on. But it's not on for long.
OP
- Thread Starter
- #48
Yes, the retailer advised it only comes on when battery power is engaged and then runs for maybe another minute after AC mains power is restored. Seems reasonable. I also run 4-200mm, 3-140mm fans and so one more fan when the power goes out is not going to be a deal breaker. I am wondering if I am over specifying the 1000W rating of the UPS. Should I go smaller for a little bit of beer money savings or just go 1000W and get on with it?
Well, you could get one with a smaller invertor if your load is lower than 1000W, but in my experience, it will also come with a single battery which will dramatically lower your runtime.
The CyberPower has two 12V 9Ah batteries in it...
Both my cheap APC units have single 12V 7Ah batteries in them. I think the Salicru has 2x 12V 7Ah.
The CyberPower has two 12V 9Ah batteries in it...
Both my cheap APC units have single 12V 7Ah batteries in them. I think the Salicru has 2x 12V 7Ah.
OP
- Thread Starter
- #50
Yes, I will buy the 1000W UPS unit then and skip all the doubting and second guessing stuff.
Manufacturers usually state 3-5 years. Mine usually last at least 4. I paid £20 for the last NP7-12 I bought (for one of the APCs) https://www.amazon.co.uk/gp/product/B00SMRQ7KA
OP
- Thread Starter
- #53
That's pretty good considering the battery just sits there taking charge for several years. The price of the battery is good too. All in all I'm feeling pretty good about this purchase and also liking that it comes with some sort of insurance of sorts.
The batteries the chap uses for the CyberPower in YT video are 26USD each... https://www.amazon.com/dp/B00A82A3QG?th=1
https://www.energysage.com/energy-storage/ FYI these guys are great free resource for anything home energy in US no sales
I have used APC and more recently CyberPower off-line UPS systems for many years. Power outages, brief and long, are fairly common for us. The UPS' are on key electronics like the computers, TVs, lower-power A/V equipment, and aquarium. Power amps are not on UPS units, don't feel like paying for that much UPS capacity. The UPS' are to ride out short glitches or provide time for a graceful shutdown in the event of a longer outage. One thing I have seen is that short glitches when power comes back on can cause large voltage surges (spikes), and often enough power glitches a few times coming back, so the UPS' all include surge protection as well as the ability to ride out those brief glitches (rapid on/off cycles can cause power-on soft-start circuits to fail).
The APC units are/were all stepped-sine BackUPS, pretty noisy waveform, save one expensive SmartUPS on the aquarium since motors need decent sine waves to avoid overheating. The CyberPower units are all "pure" sine-wave models (much more common these days than decades ago). Unless you have equipment that can absolutely never be turned off (e.g. medical equipment) I see no reason for a consumer to pay for on-line UPS units.
I switched to CyberPower based on good reviews, "pure-sine" claims, and some vexing issues with APC's customer service and cost of battery replacement. I have had one CyberPower battery fail within the warranty period and they immediately provided a new one, no charge for the new battery or shipping (nor for return of the defective battery).
Note that I do not anticipate (or recommend) operating constantly on a UPS; they are just short-term protection to provide a few minutes for me to shut down or for our whole-house generator to kick on. That means issues like fan noise or waveform integrity are not a big deal for my use case.
The APC units are/were all stepped-sine BackUPS, pretty noisy waveform, save one expensive SmartUPS on the aquarium since motors need decent sine waves to avoid overheating. The CyberPower units are all "pure" sine-wave models (much more common these days than decades ago). Unless you have equipment that can absolutely never be turned off (e.g. medical equipment) I see no reason for a consumer to pay for on-line UPS units.
I switched to CyberPower based on good reviews, "pure-sine" claims, and some vexing issues with APC's customer service and cost of battery replacement. I have had one CyberPower battery fail within the warranty period and they immediately provided a new one, no charge for the new battery or shipping (nor for return of the defective battery).
Note that I do not anticipate (or recommend) operating constantly on a UPS; they are just short-term protection to provide a few minutes for me to shut down or for our whole-house generator to kick on. That means issues like fan noise or waveform integrity are not a big deal for my use case.
OP
- Thread Starter
- #57
Good information. I am mostly concerned about spikes, surges, brown outs and lightning which when we do get it is pretty roudy. I too don't need extended time operation after the power fails.
bloodshoteyed
Major Contributor
i'm seriously considering throwing out all the old APC's and getting something like this Anker, possibly with a balcony solar setup attached, plus they have regular offers available:
OP
- Thread Starter
- #59
With lithium batteries, 1800W pure sine, 3000 cycles and all the other stuff make this a bargain for US $549.
bloodshoteyed
Major Contributor
with a battery expansion module of the same capacity it's 999$ atm of writing, offers are localy dependant tho