Amazon Basics UPS Battery Backup & Surge Protector 800VA/450W, 12 Outlets, Standby Uninterruptible Power Supply, for Power Outage Protection, Compact, Black

The battery backup works fine, and the software gives a pretty good review of its performance. I'm very disappointed that Amazon doesn't offer a replacement for the battery. Of all the batteries Amazon carries, it doesn't offer a replacement battery for its own product. Wouldn't that make sense? These batteries have a short lifespan. Can someone at Amazon tell me where to find a replacement battery?As a follow up to the above review: Since I couldn't find an exact replacement for the battery in my old UPS; I took a gamble and ordered the NPP NP12-5AH battery, also from Amazon. Worked Like A Charm. It fit perfectly in the small battery compartment, charged up real nice, and has my older 600VA running like new. It was also a very reasonable replacement cost wise. Don't let the low cost and country of origin deter you. This is a quality product and I'm lucky to have found it.

The setup was easy. Four of the sockets use the backup power, the other four don't. So I hooked up just the necessary things for backup: My PC, monitor, and router. Then I pulled the plug out of the wall. There was no interruption whatsoever - everything just kept running. It said I had 26 minutes of battery time. So I'll break that down, because so many people want a time estimate. I bought the 600va/360w version.My PC was built to be low power consumption. I estimate it consumes 150w, maximum, and much less when idle. The monitor is a medium-sized 1080p monitor. I am guessing it takes 30w. That's a blind guess. The modem, maybe 15w. So that's less than 200w, and I get 26 minutes running time. Your desktop PC probably uses a bit more power. I'm on a circuit that blows frequently, so I only need a short time while the circuit is reset. So if you're only supporting a router/modem, it should last a very long time. It is apparent to me that many of the unhappy reviewers are need a commercial-grade solution and are expecting much more power and features than this simple, inexpensive UPS has. The unit is rated at 360w. As you approach that maximum, efficiency will drop and your run time will be greatly reduced. Keep it to 200w or less, if you want good efficiency.Don't try putting a 'fridge or a microwave on this little guy. It isn't made for that. A normal laptop might get a few hours out of this. Most desktop PC's use more power than mine does, especially a fancy gaming rig or software engineer's station. If you have a mighty computer, you won't get much more than time to shut it down gracefully. A more modest computer might last 15 minutes or more. Please keep in mind these are my amateur estimates.There is software. Check under the product info on the Amazon page. I forget which tab it is under, but there's a link. Plug the supplied cable into your computer to configure the unit. Install software. It will ask for a username and password. Both are "admin" until/unless you change them. You don't have to use the software. It just lets you tinker with settings and see the battery time and load. Handy for experimenting with different loads.No complaints, it's doing just what I hoped it would do. Hope this review is helpful to some.

This UPS is great for power blips, which we get here all the time. It drove me crazy that the power would blink out for half a second, but then it would take me ten minutes to get my router back up (I work from home). This keeps the computer and router alive, which is exactly what I needed.Today was the first time the power really went out for good (I've had it for about a year) and I was disappointed that it only lasted for 50 minutes. But now that I'm checking other reviews, I see that's normal. So I'll still give it 5 stars for doing the original task beautifully.

This unit is used for wifi power and voip phone power during a power outage.Charged it up and tested it. It worked fine.The Amazon PowerMaster software had issues so I quite trying to use it and saw another review that mentioned CyberPower. Yep, that brand's units look like mine and the little manual looks the same.I downloaded the Cyberpower software and was able to monitor my unit and do a self test. All is well!