No one on this site has a large enough sample size to speak authoritatively about the quality of consumer-oriented UPSes.
In my home right now, I have an APC (Schneider) Back-UPS Pro 1000, Tripp Lite (Eaton) AVR550U, and CyberPower CP1500PFCLCDa.
I purchased the APC in April 2017, the CyberPower in Nov 2020, and the Tripp Lite in Sep 2021.
The APC was originally for all my IT gear but for some reason that load caused it to cycle to battery at random times. I replaced it with the CyberPower which works fine with my IT gear. Meanwhile the APC works fine with my AV gear where I re-purposed it.
Both of those are still on their original batteries which I test every 6 months.
The Tripp Lite I use at my desk and I also test it every 6 months, but last month the power went out and the Tripp Lite immediately shut down. The battery had failed w/o warning and the Tripp Lite battery-monitoring is apparently useless since it still thought the battery was good when power was restored, but an actual load test proved otherwise.
When I replaced the battery, the Tripp Lite had a cheap Chinese battery in it. I replaced it with a Duracell (manufactured in Vietnam). I've had less trouble with non-Chinese UPS batteries.
Another fun thing: Tripp Lite has reused the model "AVR550U" for three different UPSes all which use a different battery. Turns out my version uses the quite common APC RBC2 sized 7Ah battery.
Which is all to say: I've had a lot of UPSes over the years and you can't make any claims about any single manufacturer. They all manufacture a range of models and none of us have any actual data about failure rates. The best you can do if you have the expertise is to take one apart and evaluate its design and manufacturing quality.
In my home right now, I have an APC (Schneider) Back-UPS Pro 1000, Tripp Lite (Eaton) AVR550U, and CyberPower CP1500PFCLCDa.
I purchased the APC in April 2017, the CyberPower in Nov 2020, and the Tripp Lite in Sep 2021.
The APC was originally for all my IT gear but for some reason that load caused it to cycle to battery at random times. I replaced it with the CyberPower which works fine with my IT gear. Meanwhile the APC works fine with my AV gear where I re-purposed it.
Both of those are still on their original batteries which I test every 6 months.
The Tripp Lite I use at my desk and I also test it every 6 months, but last month the power went out and the Tripp Lite immediately shut down. The battery had failed w/o warning and the Tripp Lite battery-monitoring is apparently useless since it still thought the battery was good when power was restored, but an actual load test proved otherwise.
When I replaced the battery, the Tripp Lite had a cheap Chinese battery in it. I replaced it with a Duracell (manufactured in Vietnam). I've had less trouble with non-Chinese UPS batteries.
Another fun thing: Tripp Lite has reused the model "AVR550U" for three different UPSes all which use a different battery. Turns out my version uses the quite common APC RBC2 sized 7Ah battery.
Which is all to say: I've had a lot of UPSes over the years and you can't make any claims about any single manufacturer. They all manufacture a range of models and none of us have any actual data about failure rates. The best you can do if you have the expertise is to take one apart and evaluate its design and manufacturing quality.