1000VA/800W Lithium UPS Battery Backup & Surge Protector, Backup Battery Power Supply with LiFePO4 Batteries(230.4 Wh), Sinewave UPS System, 10 Years Lifespan, 8 Ports, LCD Display, Gray

This is an amazing unit! It has everything I need except for a power fail USB signal port to automatically shut down computers. It is lightweight and compact. It has 8 power sockets on the back - all UPS protected which makes it easier to use than units with mixed types. When you connect it to the mains, it starts charging immediately. To switch the output AC on, push the front switch on for three seconds. To switch off, push for 5 seconds. This off-time is long enough that it doesn't get switched off by my roomba, as the power switch is at the bottom at the front.The unit contains an LFP or LiFEPO4 battery bank - good for three thousand full discharge cycles, so it could easily outlast its 5 year warranty - even if you have a fully draining power cut every day!Once the supply cuts out and its running on battery backup, the unit beeps every 5 seconds. While in backup, if you quickly push the front button, it stops beeping for the remainder of the current outage, but will start beeping again on the next outage. This is exactly the behavior I want. The beep is short and loud enough to hear in most rooms, but not annoying.The battery is nominally 25.6V and 9Ah at full charge, so around 220Wh total capacity.With AC output on, the unit consumes about 8-10 watts, so with no load, its run time is about:220 / (10 + output_watts), so for example, it should last 22 hours with no load (output_watts=0), and about one hour with output_watts=210. After several years it should still work, just with slightly reduced capacity, so no sudden capacity reduction with age - unlike lead acid.

This was the only UPS I found that produced enough output with pure sine wave power for my purpose that did not have reviews talking about randomly coming home to a room full of smoke. Despite not being familiar with the Goldenmate brand, I decided to give it a shot and I am very impressed with its performance, this unit powers my 4k gaming pc and 60in 4k tv during brownouts and power failures without issue, giving me plenty of time to save my progress and shutdown.Now I will address some of the things mentioned in the negative reviews:1. Many of the reported issues are fixed in the model with 8 outlets.2. Fan noise: the only time the fan runs on my 8 outlet model is when its on battery power and drawing 300+ watts, the noise is minimal in my opinion.3. The warning alarm: on the 8 outlet model you can silence the alarm with a quick press of the power button, as for the reviews complaining about it being too loud, I found it to be much quieter than any of the 50+ UPS units I have owned in the past.4. The smell: This is the only legitimate complaint I have seen with this unit. The smell was noticeable for the first day or so, I did not find it pleasant but could not smell it after a few minutes unless I left the room for a bit and returned. This however is common with modern electronics containing transformers so it's more or less unavoidable.The battery life and charging time is exactly as advertised (haven't seen that on a product in a long time)The only thing that I would advise is that the unit makes humming noise when the voltage regulator is correcting input power, this unit will correct the power fluctuations without switching to battery power unlike most UPS units (to a certain extent), so the tradeoff is an occasional humming instead of the usual beep other units make when they have to switch to battery power to correct incoming power. If this unit was right next to your head on a desk setup, the humming might be annoying if you have poor grid power or frequent voltage drops.

I had two old lead acid battery UPS's go out all at once. I'd been wanting to try a LiPo battery UPS, but the in the past they were cost prohibitive. But, as it turned out there was a deal on the GoldenMates, so I bought two for a good price.Before buying, I did check out reviews on Youtube and elsewhere and all I found for the 1000VA/800W GoldenMate were positive. The version of the Goldenmate most commonly reviewed was a slightly earlier version, but the specs were the same. The only apparent difference was the rear panel outlets. The earlier version had four angled outlets where the one available now has eight outlets in two rows of four.In terms of performance, I'm impressed. I'm backing up my router and modem, which are a combined 23-25 watts under normal load. The GoldenMate lasted over 9 hours before shutting down, so the 230Wh rating seems about right. I also liked how easy it was to silence the alarm tone (just press the power button for about a second). So, no complaints on the longevity side. This is a good basic UPS.I don't have a meter, but per the reviews I've seen, this is a pure sine wave UPS, so power quality should be good; better than many UPS in this price/capacity range.There are three negatives, all minor. But that's why I've deducted one star.1. The tightly grouped eight outlets mean that if you're plugging in the typical power transformer block, you won't likely get more then 3 or 4 devices connected.2. There are no "surge only" outlets. With all of the other UPS's I've owned, there were a combination of "UPS backed up" and "surge only" outlets. For example, if I wanted to plug in a laptop charger along with my network devices, I'd plug the laptop charger in a surge only outlet. It would be protected from minor surges, but not powered by the UPS if power fails. With the GoldenMate, there is no option to do this. Of the three negatives, this is the one that most bugs me.3. This is a "dumb" UPS. There is no possibility to connect it to a computer for a soft shutdown. For my uses, this is not a problem as I'm only powering network communication devices. But, if you need a UPS that will shutdown your computer as the battery reaches the end of it's ability to power your PC, this isn't it.Other notes:--Depending on how much power you are drawing, a cooling fan will come on under battery. The fan isn't terrily loud, but you will hear it. For my scenario above only pulling 25 watts, the fan did not come on during the time I observed it. If the fan did power on, it would obviously take battery power away from your devices.--Charging is very slow. This isn't really a negative. Typically, you don't need a UPS to charge quickly and it should be gentler on the battery life with a slower charge. The UPS arrived at about 3/4 charge. It took several hours to fully charge. As long as you don't have frequent power failures, I don't think will an issue.--The power inverter apparently has about 1-2% overhead of the power being consumed (per the power display). For example (see pic), my router and modem were drawing 22watts but the UPS was drawing 23watts.--It is both smaller and lighter than lead acid UPS's of the same capacities. But, it is not exactly light or small. Again, not a negative, but I was surprised the UPS was a large as it is.All in all, I'm happy with the GoldenMate so far. I'll update if there are any changes to my ratings.