I use the 155B as well and I find the biggest thing to factor is voltage
loss.  We do 27.3 volts to charge and by the time it gets up to the
Powerbox up top, it's down a volt or two.  Then the voltage to the
equipment tends to be 23-25 volts.

As was said, though, 27v should work just fine directly to the equipment.
Ubnt seems to be the closest and it seems to work without problems.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373


On Wed, Jan 16, 2019 at 8:33 AM Ken Hohhof <[email protected]> wrote:

> Traco TSP-BCMU360 fed from a 24V power supply), or integrated TSPC
> 240-124UPS, will provide regulated 24 VDC while charging and managing a 12V
> battery string.  Not recommended for sites with a large power draw.
>
>
>
> Phoenix Contact has a DIN rail UPS series that provides regulated DC
> voltage, but it jumps to the battery voltage when running on battery power,
> which kind of defeats the purpose.  Except I guess that battery voltage
> will not be as high when it is supplying power rather than being charged?
>
>
>
>
>
> *From:* AF <[email protected]> *On Behalf Of *Mathew Howard
> *Sent:* Tuesday, January 15, 2019 10:12 PM
> *To:* AnimalFarm Microwave Users Group <[email protected]>
> *Subject:* Re: [AFMUG] Meanwell UPS AD155B
>
>
>
> Any of the current UBNT products will handle 27v just fine.
>
>
>
> On Tue, Jan 15, 2019 at 9:21 PM Rhys Cuff (Latrobe IT) <
> [email protected]> wrote:
>
>
>
> Hello
>
>
>
> I use Meanwell AD155B’s to charge and run my 24V load.
>
> Unfortunately the charge voltage is a tad high for the ubnt products I use.
>
>
>
> I use a DCDC converter to go from 27v down to 24v
>
>
>
> Is this the recommended solution? Seems a waste just to drop 3v
>
>
>
> Does anyone know of a more suited PSU/charger/LVD unit? Perhaps with
> adjustable charge and load voltages.
>
>
>
> Thanks
>
>
>
> Rhys
>
>
>
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