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Thread: Which UPS should I buy? APC vs Eaton.

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    Question Which UPS should I buy? APC vs Eaton.

    My APC 800va BackUps started to throw weird errors.
    So I'm about to buy a new UPS .

    I have two possible candidates.
    Eaton 5E 850i 850VA Line Interactive
    APC Back-UPS Pro BR900G 900VA

    I checked the bigger Eaton 1100VA but it has an always on fan , so it was no go.

    The thing is , APC costs almost four times of Eaton and I'm not sure what the important difference is.
    under heaviest load my computer seems to draw about 350W at most. So both are enough. But is Eaton compatible with Apfc PSUs? There is no information on their site.
    Voltage regulation of my APC seems to be always on spot , what ever the input voltage is output is always 230V. From my previous experiences with different brands some had step boost with resulted with fluctacted output voltages. Can't find information about Eaton.

    So, does anyone has any experience with Eaton 5E 850i? Which one would you prefer? is APC worth the four times cost?

    my computer
    intel 4770k
    Amd R290
    27' Asus gaming monitor
    750W Seasonic X-Series PSU
    Last edited by MikeN; 09-22-2019 at 05:39 PM.

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    Really odd that the APC costs that much more. They're both line interactive and both have simulated stepped sine wave output. The APC just has the LCD.

    I have an APC myself, but I sure as heck didn't pay four times the money for it. Over here in the U.S., APC, CyberPower and Tripp-Lite tend to cost along the same lines.

    I do have to say that the Eaton looks like one of those UPSs that are rebadged by dozens of other companies. Not that that's a bad thing.

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    Some APC BR models are true sine-wave
    Last edited by ashiekh; 09-23-2019 at 10:04 AM.

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    Quote Originally Posted by ashiekh View Post
    Some APC BR models are true sine-wave
    Which would contribute to the higher cost, but apparently the one he is asking about is square wave:

    https://www.apc.com/shop/gr/en/produ...ko/P-BR900G-GR

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    I like APC UPS 's , so far I've had good experience with them. Yet I can't justify paying four times the price , since it's not pure sinwave or has anything special about it.

    Only different maybe the Voltage regulating capabilities. The APC one I use has output of 230V regardless for input voltage. That wasn't the case with other ups's I used. They kinda only interfare if lower or higher than certain limits and with a fixed multpliying factor -like if lower than 200v , x1.1 to 220v - which makes the output voltage fluctuates like crazy .
    But there isn't any information about their voltage regulating capabilities of both devices.

    Also I will be upgrading to Ryzen 3900 or 3950 , Radeon 5700x and maybe a bigger monitor like 32" to 40" ,and 480W maybe too close to limits. But anything bigger than 850V on Eaton has always on fan

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    Quote Originally Posted by MikeN View Post
    maybe too close to limits.

    There is usually a large turn-on surge for a PC power supply as the supply capacitors fill, and this might be an issue.

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    Quote Originally Posted by ashiekh View Post
    There is usually a large turn-on surge for a PC power supply as the supply capacitors fill, and this might be an issue.
    I did a worst case scenario with my current setup. A cpu benchmark to force the cpu %100 , copy a large file between two harddisks and play the latest DOOM to work the GPU to %100 ,also monitor at brightest settings . It draws 378W Max from the UPS. So even after an upgrade 850VA, 480W Eaton will possible have enough power. But I don't know how much more turn on surge of the PSU will draw.

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    How old is your APC, maybe it just needs new batteries?

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    Quote Originally Posted by ashiekh View Post
    How old is your APC, maybe it just needs new batteries?
    its like 7 years old. But I changed the batteries a few days ago.

    I changed the sensivity setting to "low" in APC 's Windows application. And that "Online-Battery power" loop has stopped. Since Power isn't the issue, something is wrong with the UPS.

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