GOLDENMATE 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

Item is well designed and works well. It switches over to battery instantly and maintains power as specified. The display shows the voltage, watts, and battery level on one screen at the same time. The system beeps softly when on battery and can be silenced by pushing a button. The fan only comes on with heavy extended use and is very quiet. Overall, it is an excellent value, especially considering the extended life of the lithium battery which is also much lighter.

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.

Works great for my Comfortbilt HP40 pellet stove! Ignition uses 500 watts for 5 to 10 minutes then switches to run mode which uses around 50 watts. This UPS has no problem working with my stove. In fact, the power went out and was out for about 2 hours, this easily kept my pellet stove running and in fact had plenty more battery power left if need be. Highly recommend!

My house is on a gas generator, so battery backups only need to really last for at most a few minutes before the genset kicks in and powers everything. But in that moment, I need a reliable UPS for my PC and assorted electronics. The other lead acid units I've used for the last 20-odd years have been mostly reliable but when the batteries fail, it seems that 9 times out of ten the unit itself would soon experience some sort of failure, and any money spent on new batteries would be wasted. So I was eager to try this lithium ion technology as a backup device, in the hopes that it will work for long enough to offset both the added extra cost to buy and the lack of ability to replace the internal batteries. So far, so good, but I've only had it for about six months. This device is more than adequate for my main PC, which is not a gaming PC but also not a standard desktop unit. It's kind of in-between and is a higher power draw than a laptop or basic off the shelf unit would be. Since I only need backup power for at most 5 minutes, I've also added my modem and router to the device to keep internet up during short outages. So far, it handles them all without issue. I will say that on one occasion, a short power blip did seem to cause the unit to hiccup. My PC didn't shut off but the modem did. Luckily it was during an off peak time so no one was inconvenienced too much. But it still does make me wonder if it will happen again some time. The unit itself does seem to switch ever so slightly more slowly to backup power than the traditional units I've had from APC or Cyberpower. Something to consider, I suppose, if you have sensitive electronics. One worry I've had is that the unit would have an obnoxious buzzer or alarm when in backup mode. Some reviews complained about that while others seem to say it doesn't have a buzzer at all. Mine does, but it's honestly kind of a quiet, pathetic little whizzer that I can barely hear, so it doesn't wake me up annoying if an outage happens when I'm asleep. The alarm can be silenced by pressing the button on the front panel, but frankly I haven't been annoyed enough yet to even try that. The same button also does other functions so I don't really want to take a chance on hitting it for too long and shutting the whole thing down. Overall, it seems like a good device. The build quality is definitely not up to the big name brands' quality. The LCD display is a bit wonky and the bog-standard LED lights on the front panel seem like they came from some industrial machine from the 70's, but overall it's compact, quiet and has plenty of plugs on the back to power whatever, so I'm happy. Whether it lasts long enough to justify the price difference of lithium ion, though, remains to be seen.

Me ha ayudado mucho, 5 ocasiones se me ha ido la luz y el mantenido jugar teniendo internet estable. 10 de 10

todo bien