12V UPS for Monitor Camera, Mini UPS 4000MAH 12V 1A 16.65WH Emergency Uniterrupter UPS for led Stripe Security CCTV Camera back up battery 11.1 * 1500MAH

Had it for one year, inside a shed that's hot in the summer and cold in the winter, powering 2 Wyze cameras through a Sonoff USB relay. It works fine and I had no issues at all with it.I give it only 4 stars (4 1/2, if I could) because it's not my best mini ups, I have others with better battery level indicators, several output voltages (5, 9 and 12V), USB output... all things this mini ups lacks. But it's a good product, it does what its description says.I have to say, I'm curious about the "self destructing if opened" feature... I wonder if it's a translation error or something real...

It's hard to say what this is/isn't. The manual and Amazon ad say different things. Installs super easy. Cheap build quality.. crappy plastic case. Doesnt weigh much. I have a 2.5a nighthawk ac1750 router and this will keep it at least an hour.. I tested that... will it last 6 hours like amazon says? I'm not sure I'd bet on it. But maybe.

I have a custom Arduino application that needs power to remain on at all times (will reset its counter otherwise). This UPS so far has worked just fine. I will hopefully not be plagued by power outages. I tested it by simply unplugging from the wall. The unit kept my Arduino running for 30 minutes before I plugged it back in. I'm not sure how long it will hold for - but in my case, I only need it to hold for a minute or two. 30 is more than long enough...

I only give 3 stars because there are still issues that I have to figure out. I have 3 wireless camera's. When the power fails at my house, all three wireless cameras come back on at the same time. For some reason, this causes an issue with the IP addressing on my network and the camera's do not connect to the security video monitoring software I use. If I start one camera up at a time or stagger their start up by 10 or so seconds, then they all connect back up and work fine. I was hoping that this battery pack would prevent this issue, keeping the camera powered until commercial power returned. Unfortunately this isn't working, sort of. When I unplug the AC/DC charger I'm using to supply commercial power to the battery pack, the camera shuts down, and then restarts under battery power. But that's my problem - when all three camera's shut down and restart at the same time, they interfere with each other and never connect back up to the security video computer. Does the battery pack supply power to the camera? Yes. Does the battery pack keep my camera's from restarting? No. My next step is to install a capacitor and diode to try and provide enough power to the camera while the battery engages. Hopefully that'll keep the cameras from resetting. For those that complain about the adaptor not being right - the manufacturer can only supply so many adapters. Go find what you need on Amazon - I did - https://www.amazon.com/gp/product/B07SJ3W21K/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 I went ahead and ordered two more batteries and adapters in anticipation that I can resolve the camera restart issue.11/15/2019 - After finding a 5v 2amp power supply and leaving the battery on it for about 12 hours the LED on the battery pack displayed green! I connected the battery pack to my finicky camera, powered it up and then pulled the power supply to the battery pack. The camera continued to work perfectly. I plugged the power supply to the battery pack back in and viola! the camera continued to work as if it had never seen a loss of power - which it didn't! They aren't joking in the instructions about making sure the power supply provides enough power to both the battery pack and the camera. I now have UPS to all three of my finicky wireless cameras. This is by far a much better method (and much less expensive) than buying dedicated UPS units. Overall rating raised from 3 stars to 5.

We haven't had an extended power outage since I got this, but it handled a 30 minute one with no problems. I'm using it with an Acu-Rite weather station display, The outside sensor is battery powered, but the display was AC only. We had two extended power outages where it lost all its data, which is very disappointing. I got this to hopefully get it to ride out those longer outages. I ended up having to cut the provided cable in half, as well as the cable from the wall wart to the weather station, and solder them together to make it work. The connectors and adapters that came with the UPS didn't come close to fitting my existing cable (the plug into the device is right angled and fits into a recess in the case). That wasn't unexpected, but not everyone is going to want to do that. I'm not sure how they could get around that, though.

This UPS is perfect for keeping my WiFi router (TpLink Deco M4) running in the event of a power failure. Being a curious Electrical Engineer, I tested its performance on the bench. After the initial full charge, it provided a constant 12 volts into a 30 ohm load, thus providing 400 mA, for 9 hours before automatically shutting off. This equates to a 12 volt equivalent of 3600 mAH. The advertised specification of 12000 mAH could be misinterpreted. The 12000 mAH rating evidently refers to the capacity of the 3.7v Li-Ion pack, not the up-converted 12v output. If you do the math for up-converting 3.7v to 12v, the 12000 mAH will translate to 3700 mAH. My actual measurement of 3600 mAH indicates an exceptionally good up-converter efficiency.And, 3.6 AH @ 12V is still pretty impressive for the cost and size. It will keep my router alive for 9 hours.The current draw of the unit for re-charging gradually increases from 310 mA to 360 mA over a course of 16.5 hours. When fully charged, the current drops to an idle of 50 mA. The specified charge time of 6 hours is incorrect, and I was actually happy to see this. This is not really a problem for a UPS application, and it is much healthier for battery longevity to charge the batteries slowly.This also means that, if your load requirement is low enough, you do not need a 2A wall adapter. The rating of the wall adapter only needs to be enough to supply your load plus about 400 mA in the event a charge is needed. For example, my router draws on average around 400 mA. The 1.2A wall adapter that came with it is plenty adequate to power the UPS plus the router. There was no need to purchase a new 2A wall adapter for my application.So far, I am very happy with this purchase.

This UPS lasted a month, maybe less, i did a check to see if it would work and pulled the plug and the device used to stay on but now just dies. Unfortunate that the return window close already. I bought a brick.