PowerWalker UPS VI Series 850VA/480W Compact Battery backup solution with 2 x UK Outlets, Built-in AVR, HID Supported, Cold (DC) Start Function (Non LCD Screen)

Great UPS for the money, works perfectly as was tested when the electrician turned the electric off. My only criticism is it doesn't come with a USB cable

I have a smart home, with multiple hubs, routers, switches etc, along with a Rapberry Pi to run it all. After a fault toaster tripped the electrics in the building, my smart home was no longer smart. The memory was corrupt on the Raspberry Pi and the whole thing had to be restored from back up. My other concern after this happened was security, as the hubs also run the intruder, fire and flood alarms. I needed a way to keep everything running 24/7, even when the power is out. Fast forwards 24 hours and I order this product, mainly based on it's price/value for money. It also has stadard UK sockets in the back meaning no adapter is required, as many different models only offer the kettle lead type sockets for PC's and monitors. Sadly the first one arrived broken, with a part of the plastic housing smashed into little pieces, all of which were in the box. I do beleive this to be the couriers fault, though. I contacted amazon, who sent out a replacement immediately to arrive the next day. Fantastic service. Installation was super easy, simply plug it into the wall, plug the devices you want to run into the UPS, and turn it on. I left it for a few hours to charge, then went to test it. I simply turned off the wall socket to mimick power failure, you hear a beep to signal the fact it has had to intervene, and everything kept running without a glitch! Great! A week later and the same toaster (that's now in the bin), tripped the buildings electrics. Everything worked exactly as planned! None of the hubs, routers or the Rasperry Pi knew any different. It took me 35 minutes to get home after this happened, and everything was still running even after this time. Please note though, the battery only lasted this long due to the low power consumption of the devices. For use wth a normal PC, monitor etc this will probably be much shorter. A very very happy customer - and would highly reccommend this! Especially for a home network. Considering buying another for the CCTV setup!

I've had this thing running non-stop for over 3 months without issue. I've tested cutting the power several times, and it worked flawlessly. It kept an ADSL router and IP camera running for over 1.5 hours on the battery. Downsides? It always runs very warm. Is emits a slight hum, which would bother me if I had it near to me.

Tried using this to protect our projector (or rather the projector bulb) from frequent incorrect power offs after use of emergency stop button in workshop environment so not really the target application for this UPS. Found that after an extended power out it's run time will be seconds if someone trips the power off before it's had a few hours to recharge. went looking for the option to turn off supply after a certain amount of battery run time to stop this problem but found unfortunately the UPS doesn't support this feature. For those running a computer their is some software you can download from the powerwalker website and once connected via USB cable you can use this program to get the computer to trigger the turn off of UPS sockets behavior but once computer is shut down if the power is restored and then lost again you no longer have deep discharge protection so standby power draws can deep discharge the unit and you will need 8 hours to recharge before you get back the full run time. To find out how long this will power your devices you will first need to know the combined wattage of everything connected then go to the powerwalker website and their is a table you can look up the model of UPS and get runtimes at a selection of common loads. For those with power hungry devices don't trust the 4.5 minutes that some sites list as this is for a 50% (240 Watt) load not the full capacity 480 watt load.