Battery Powering WiFi Kit

[Shnorkiller]

Hi All,

Hoping someone can help out.

I'm wanting to try make a really low cost power redundant solution for a few point to point links using Ubiquit kit.

I'd ideally like to run power into a charging unit which charges a few 12v batteries, connected to a regulator off which a PoE device powers the wifi kit at 24 and 48 volts (managed to locate a component that can take 12v and output 24v, but need 48v solution)

Can anyone advise, we arent electricians so are very much out of our depth.

 

[Beachless]

Have you already bought some stuff or are you still planning?

It would be much easier to setup everything in 48v and then step down to 12v than the other way round.
You do get dc-dc convertors but 12v to 48v I think would be pricey.

 

[Shnorkiller]

Have you already bought some stuff or are you still planning?

It would be much easier to setup everything in 48v and then step down to 12v than the other way round.
You do get dc-dc convertors but 12v to 48v I think would be pricey.

Still planning. Can you advise some equipment?

 

[retromodcoza]

We engineer , build and sell this :



Its a POE UPS device. You plug power in one end (normal kettle plug computer cord) and out the other end comes POE 802.3AF 48V.
If the power goes out , it fails over to the battery for 9 hrs +- backup time

The cost at the moment is about R2300 for the unit. We have a small converter module that steps it down to 24V if needed.

You also also buy a cheapo UPS (R800) and rewire the plugs from 3 pin to kettle on the POE devices.

Our solution is much cleaner and simpler though , which much longer lasting backup time than a UPS will give you.