APCBack-UPS Connect - CP12036LI - 12V DC 36W Lithium-Ion Mini UPS, designed for Routers, Smart Home Controllers, VoIP devices, Networking gear and more

I got this to protect the optical termination of my BT fibre broadband. There is no power supply with the UPS, but the Openreach plug top PSU is compatible. The wall mounting is improvised from some oval conduit clips I had spare. Tested at least 3.5 hours of continuity with this Adtran ONT. Another UPS protects the router and switch upstairs. Great product - would recommend

Why did you choose this product over others?:I got this to keep my network up in the event of a powercut as we were having a large amount in our area at the time. (one for this my router and one for the cityfiber box, and a larger UPS for my PC and Server) with my router of the time (FRITZ!Box 7530 AX) being powered and working fine, Sadly for me, Ill need to change one of these out as I brought a new router (Ubiquiti Cloud Gateway Fiber) and this doesnt provide enough power output to run it. it works well, but before you buy one you might want to check the power draw required to run whatever you are buying it for if it's a little bit power hungry.recently during the heatwave, a family member unplugged the CityFiber box to plug in a fan, we only noticed it had been unplugged a few hours later when the internet suddenly stopped working, gave us a laugh when we noticed, it held up for a good bit so overall I would recommend.

Other than the Eaton3s mini, this Schneider APC CP12036Li is the only other widely recognised make of mini DC UPS being sold on Amazon and as such its a welcome addition to a market place full of transient clone-like products from short lived suppliers. With the planned withdrawal of the UK PSTN by the end of 2025 and the ongoing switchover to VoiP many more people will come to recognise the value in adding a battery backup to their routers. Given the importance of product safety when relying upon li-ion cells, its good to see a few established UPS manufacturers offering these small domestic products. The UPS doesn't come with an AC/DC adapter its assumed that it will be connected in-line with the one already powering the router etc. The guidance indicates the UPS can deliver 3A/36W.With around 22Wh of tested usable capacity this UPS should run a typical domestic router for between 2 and 3 hours, most routers seem to use between 6-10Watts. In the event of an extended power cut the device has a simple soft On/Off button, allowing it to be shutdown and restarted as needed. There is no audible warning to indicate an input power failure, the On/Off button just has an LED which flashes to indicate the UPS is discharging its battery.The battery max recharging current is <400mA, which means the AC/DC adaptor you use has to have around 5W of headroom to safely supply the UPS and the device it normally plugs into. The documentation doesn't make this point clearly enough in my view. If in doubt about how many Watts you router is really using then it makes sense to measure it and then decide if the existing AC/DC adapter is up to the small additional load.The unit itself is a solid performer with good voltage regulation across the discharge cycle and across different load. The output voltage held steady at 11.2Volts even @3amps.One observation is that APC used to sell a much larger capacity version of a similarly styled UPS; I still use a CP12142LI and nearly 5 years on it is still protecting my gateway router from regular power cuts; sadly they stopped making it a few years back. This new mini UPS is a good solution which could have been better if they had kept some of the features in the previous model, specifically capacity, audible warning, wall mounts. The price is also on the slightly high side, but you are paying for the name and all the safety, certification that goes with it.

Clear instructions, needed fully charging first but then kept my Plusnet Hub 2 router running without mains power for 90mins before last LED started flashing.Adaptor plugs are included but I had to buy another one for the router which takes 5.5mm x 3mm connector.Very pleased so far.

One of the biggest telecoms companies in the UK - BT - but this device doesn't have the power adapter for it. Very poor.

I have it connected inline with a NAS drive (probably at the limit of what this UPS supports - check your device's power requirements - this UPS is rated to support max 12V/36W for just 30 minutes), and today while an electrician was in my flat constantly switching the power off and on, the NAS was unaffected and carried on working regardless.Worth noting... I expected this UPS to come with its own AC adapter; it does not. You connect it inline with whatever device you are using it with, i.e. my NAS has an AC adapter leading from the wall outlet in to the NAS device - well, now that AC adapter leads to this UPS instead, and then the UPS's built-in output power cord connects to the NAS.

Only just installed this, so no test on how long it powers our internet modem. But pulling the power plug worked fine with the unit indicating it is on battery power with 75% battery left. (A nice range of errors can be reported by the 5 LEDs, if you have the instructions handy to interpret them.)Instructions say batteries should be good for 3-5 years.We are out in the country and prone to short power glitches, which this will handle nicely, instead of losing the connection for say 10 minutes. The longer cuts, it should allow an hour or two of extended use on our battery powered tablet, laptops and mobiles. This will also cover the digital landline, when it arrives here.Jack plugs can come in several sizes. This uses the common 5.5mm x 2.5mm size with two pairs of converters, which seem to be for other common sizes 5.5mm x 2.1mm and 4.5mm x 1.7mm.However it seems that Plusnet use 5.5mm x 3.1mm! The socket in the APC unit copes with the difference, but the plug out of it into the modem needs a converter. In my case, I recycled the plug from an old Plusnet Hub 1 modem, wiring this to a 5.5mm x 2.5mm socket and now it functions fine. (Don't forget to check the polarity of such wiring).