Low power/current high capacity UPS

Forums › Desktop computing › Low power/current high capacity UPS

ElectronicFerret

125 posts

Master Geek
+1 received by user: 9

#177634 10-Aug-2015 09:07

Does anyone know where I might find a low power, high capacity UPS?

The UPS only needs to provide 50-75 VA/watts but ideally it would have at least 12V/55Ah of capacity. It's to power 12V dc gear (VDSL modems & router).

I know it's efficient to power 12V items from a UPS due to the multiple conversions and I normally 'make' a DC UPS out of an AGM battery and a special charger with a DC supply mode, but in this case it's going to be installed at someone elses property, I want to use an off the shelf solution to limit liability.

NZSpides

155 posts

Master Geek
+1 received by user: 76

#1361905 10-Aug-2015 10:03

If you're powering 12 volt items, why not just purchase a 12 volt power supply with a decent battery?

There are many commercially available and are much more efficient than a UPS and you can change the battery yourself.

lucky015

746 posts

Ultimate Geek
+1 received by user: 182

ID Verified

Trusted

#1361917 10-Aug-2015 10:21

As above but if you absolutely must have an off the shelf unit then your best with something like the following, There have been a few discussions around it on here recently if you want to try a search and it was designed with this specific purpose in mind.

http://constantvigil.com/shop,shop,2,1,001.html

NZSpides

155 posts

Master Geek
+1 received by user: 76

#1361939 10-Aug-2015 10:35

Well, Lucky015, that's a perfect solution!

I may have to look into this myself, although I have other off the shelf things I can do as I have an electronics engineering background.
For the general user, this looks very good.