Vertiv Liebert PSI5 UPS - 1500VA 1350W 120V Line Interactive AVR, Rack/Tower, Lead Acid, 0.9 Power Factor, Pure Sine Wave, Rotatable LCD Monitor, Power Backup with Surge Protection (PSI5-1500RT120)

Power supply to my home entertainment system (OLED TV, Onkyo home theater, AppleTV) in my 50+ year old home is noisy from inductive loads (heat pump and refrigerators being the main culprits but also washing machine, dryer, dishwasher). These loads were causing voltage drops at motor start that caused the LG OLED to go dark or the Onkyo to click the speakers off and on. All rather annoying when watching and listening.This Liebert PS15 is oversized for my use case but I have no regrets. It has completely solved the power drop out problem I had. Its line interactive output is rock solid. It may be my imagination but I think the audio quality is also better as the Onkyo's own power conditioning is just along for the ride now.The UPS feature is secondary for me as mains power supply is reliable.

Using it about a month so far, the fan only runs when it's charging the batteries or running on batteries making this silent when power is normal. I love that. I've done a few tests. Works perfectly. Because it's a very efficient 90% power factor, a load is a smaller percentage making run time longer. Very pleased so far.

I purchased two of these units and they both don’t work identically. I have them as back up for some internet and video equipment, and after an extended power outage, the units were fully discharged. After power was restored, the UPS units would power on and off, causing the equipment to never come back online.These units cannot maintain power output while charging units internal battery, and not a good choice for offsite equipment.

I loved it

The outlets are not programmable. You need to buy a very very expensive card to be able to control any outlets.

We needed a small rack mountable UPS and this one has all the features for those unexpected power drops. Great brand.

I purchased two and one of the units caught fire within several seconds of connecting to power and powering on, perhaps indicating faulty soldering or battery damaged in shipping. This is not unique Liebert however. I work in IT and many APC units are also known to catch fire.

No rack installation instructions, combined with missing mounting parts, made this a nightmare.