Eaton 5S700LCD UPS Battery Backup & Surge Protector, 700VA / 420W, AVR, LCD Display, Line Interactive

Eaton is well-known in the datacentres, hospitals and other large installations, but when you need the most reliable UPS for a home workstation, pay an extra for this baby. This is a prosumer UPS, for those who use their home computers for work. The unit runs weekly self-tests, unlike consumer-grade devices, so you know you're protected. I've been running them for years, changed batteries as specified and never complained. Perhaps the most reliable on-line power you may get for a reasonable price.You may (or may not) find the absence of USB charging ports on the unit as a negative, but this is, again, a prosumer unit with a single function: protect your equipment. You don't want to lose main power while your three iPhones are charging, and that's the thinking behind this class of devices. You may always connect a power strip with USB ports to its surge-protected (NOT battery-backed!) side to get as many USB charging ports as you need.

I've had the Eaton 5SC1500 plugged in for little over a week and it's been smooth sailing ever since. Yes this unit has a higher price tag than a CyberPower UPS but the quality and post-sale support from EATON are worth the price. Also the ABM should in theory have the internal battery last ~5 years. That's longer than any APC or CyberPower unit I have read about.My equipment is pulling roughly 130w of power on average. Roughly speaking that's 11% capacity of this unit with 1 hour of battery capacity if there were an outage.Now from the beginning, this UPS weighs 34lbs so be careful lifting with your back. Make sure to open the front panel to plug in the batteries when you receive the unit. Before you plug in any equipment into the UPS outlets, plug the unit into wall power to let the internal batteries charge for at least 8 hours. The elephant in the room, the loud fan. Yes it's annoying when it's running BUT that's only if the internal battery is charging. Once the battery charge state reaches >96%, the fan shuts off. I have not encountered the fan running with a higher load on the UPS as of yet. There is also a buzz of electricity coming from the front panel that is inaudible from a distance but is present when close to the unit continuously. I'd say the buzz is in the ballpark of ~10-20dB. Speaking with a EATON's technical support rep, which is very quick to respond on the phone, this is normal operation from the unit.Lastly, make sure to size the UPS to be appropriate for your equipment. My equipment will not use more than 30% of this UPS's rated capacity so the fan will never run unless there is an outage and the battery has to recharge.I will update my review should my experience change. Overall, I am a satisfied customer.

I bought the unit on 2020/November/6th. I use it to run the Optical Network Terminal, or ONT. That device supplies an internet and phone connection. The Eaton 5SC 500 fills the role of a backup power supply that used to be provided by my internet service provider. Now when utility power fails the ONT continues to operate normally. With it's sine wave output the Eaton is compatible with the outboard ONT power supply. Estimated run time with a new battery is over an hour. More than long enough for me to report the power failure. I like the very short transfer time of 4 ms. So the chance of drop out during a transfer is virtually eliminated. The Eaton was so reasonably priced I bought a second one nine days later for my Synology NAS. Today is 2021/August/30th. Both units function perfectly. I like the display screen that shows you the status, operating mode, battery state of charge, and load in watts. After a while the back light for the display goes out and makes the unit less obtrusive. But the display is still on. Just shine a flashlight on it and you can read it. The only time the display actually turns off is when you switch off the unit and there is no supplied utility power. When utility power does fail it is quick to transfer to internal battery power and keep the protected equipment running. It does beep when this happens, but you have to be close by and the room has to be relatively quiet or you won't hear it. This unit does not have a fan in it so it's very quiet. When you unpack it you need to remove the front cover and connect the internal battery first before you do anything else. The quick setup guide shows how to do this. It was relatively easy for me to do. The unit came with some software on a CD and a USB cable. I'm not using these as neither unit is protecting a computer, so I have no idea how good or not the software is.In the future If I needed to replace the Back UPS I'm using for my desktop computer, I will be looking to buy a bigger version of this one.