Mini UPS Uninterrupted Power Supply 7800mah 12V 2A USB 5V 1A Output Power Bank (GM312 UPS)

I’ve experienced a few power cuts (and hating the long sync times that occur after a power outage) recently and while I already have a big UPS for my main PC and monitor, I don’t have anything to protect my router because it’s in a different room.When I opened the packaging I examined the mini UPS unit and I was surprised at how small it was. It seemed to be made from good hard ABS plastic and had a nice weight to it. Also included in the box was 3 x barrel jack adapters, a barrel lead and a 12v UK power supply.On top of the unit it had 2 LEDs (1 green & 1 red) to signify battery status, with the red LED only lighting when the internal 18650 batteries were charging and the green LED indicating that unit had AC power. There was also a button on top which was just an on/off switch.On the back of the unit it had various connectors, these were: a 5v USB port supplying 1 amp, a 12v barrel connector (for output voltage) and a 12v power input port for connecting the included power supply.I connected the device up to my Virgin Super Hub and it seemed to be already charged up but operation wise the Virgin router seemed fine with no speed or stability issues. This mini UPS has functioned great since I’ve had and although there’s no audible warning when the power is cut it has just done its job effortlessly (what more could you ask for). I can thoroughly recommended this for those people with a VM Super Hub 2ac (and SH 3 as it’s the same PSU) - it’s easy to setup and doesn’t require much attention once functioning, top marks.I’ve included various pictures. Thanks for taking the time to read my review.

This works exactly as it should and runs a router for a time if the power goes off. It is good value for what it does. I have not yet tested it to see just how long it will run the router but it definitely works for relatively short interruptions.However, I can confirm the comment in another review that neither the supplied connector nor the adaptors will fit a BT Homehub. In quite extensive research, I failed to find a ready made alternative connector that would fit. After a lot more research, and measuring of the plug needed, I finally found a supplier of the correct plug and so was able to replace the plug on one end of the supplied connector. It all now works perfectly and I am pleased with the unit but if you are not handy with a soldering iron and want this for a BT Homehub, you may have problems.

This was a promising proposition - get a few hours of broadband wifi even with the mains power off.Unfortunately the 2A output at 12V seems aspirational. I checked with a meter and here's 12V across the terminals, but I couldn't even power up a 12V/1A rated network switch with it, let alone the 12V/2A Virgin hub 3 or anything else.It does charge a mobile phone OK, but it's expensive for a power bank, if that's all it really can do.UPDATE: I managed to find a 12V device it would power up. A decorative light rated at 0.5A. Not much benefit to UPS functionality there though unfortunately!

Looks like a high quality product – well packed, quality materials, compact.It powers my Vodafone Broadband router for about 3 hours, despite the fact that the router was shipped with a 2A power adapter and the Mini UPS only outputs 1A.After the UPS battery was depleted it took about 6 hours to fully charge again while still powering the router.My only issue with the product is the slightly rounded design which makes it impossible to stack them, but I'll work something out.Later edit: these work ok-ish linked in series, but if any of them is charging the current is reduced to the point that my Vodafone router continuously keeps restarting, but works ok if both UPS are fully charged; so after a power outage the ups need charging before connecting to the router, which is very inconvenient; this doesn't happen at all with just one of these UPS

Returned mine after test run. It powered a router for a couple of hours but then failed as the deep discharge protection was faulty or absent. The lipo discharged to 0.3v and would not recharge afterwards. I also doubt that it has 7800 mah capacity at 12v as I have other 3s lipo batteries with 2400 mah capacity that are bigger and heavier than the whole unit. To their credit it was refunded without quibble.