APC UPS 950VA Line Interactive UPS Battery Backup, BVK950M2 Backup Battery with AVR, 2 USB Charging Ports (Type C/Type A), Back-UPS Uninterruptible Power Supply, Black

I bought this UPS to go with a mini PC I have. The PC doesn't have a battery. As a test, I unplugged the UPS, and the PC stayed on. I plugged the UPS back in, and the PC kept running as expected. I initially bought a CyberPower CP850PFCLCD 850VA Sinewave UPS. My PC would would turn off when I plugged the PC back in during this test, and it was repeatable. The monitor stayed on, with no visible power cycling. I got a refund on the CyberPower - as the point of a UPS is for your computer to stay on during an outage (!!!). I initially chose the CyberPower for the sine wave, easily replaced battery, and digital display. This is a line interactive step-approximated sine wave system. The manual says the transfer to battery delay on outage is "6ms typical, 10ms max." The manual says the stepped sine wave is appropriate for computers and peripherals and "is not intended for motor driven equipment," and the input power may be rejected (no mention of any associated hazard). This is fine with me. I actually prefer (a lot) the simple operation of this unit compared to the CyberPower. I don't need all those extra settings the CyberPower has, which I realized when I stepped through them at installation. With the APC, you just charge it for 10 hours, and then plug it in and go. The APC is also smaller (6 3/4" tall vs. 9 1/2"). The APC has a voltage sensitivity setting (low/default) for noisy (voltage range) input voltage, for use with equipment not sensitive to this fluctuation, to avoid switch overs to battery, which shortens battery life. I left it on default, and there have been no switch overs. When I unplug the UPS (power outage) there are initial warning beeps, followed by 4 beeps every 30 seconds. You can mute those beeps with a short press of the power button, and you won't get more beeps until the battery level gets critical. The beeps aren't too loud, and I'll probably leave them going during an outage. There is optional software to control the UPS, which I haven't tested and don't need.

Bought this for my PC, it has a Ryzen 9 7900x and an Nvidia 4080. This is enough power to allow for the pc to be shutdown properly in the event of a power outage. What its really great for is "cleaning" the power that comes into the PC. I'm in an old building with old wiring in a city, the power moves around a bit, every couple of days I'll hear the UPS click off and on, especially in the summer when all the AC's are going. That's not good for the PC so the UPS really helps in that regard as well. Simple setup, wish the cord was a bit longer but that's pretty much my only issues with it. You can get the personal version of the Powechute software to configure it off their website.

amazing product, uing it on my home NAS and modem so we never lose connection to our security feeds during an outage.

I have two of these in my house, neither are connected directly to a computer. The constant 3 beeps when there's a power outage ever few minutes is super annoying and no way to turn it off. However, it does work as expected. Allowed me to power down my PS5 and computer/equipment safely. I haven't let the backup battery run its course (read: the constant beeping), I turn the unit off once everything's powered down.

These work great. Have installed ~10 in an area that suffers frequent power outages and haven't had any issues.