So it looks like we will go with the 24v system (AD-155B) for now. Does the voltage adjustment screw only change the Load voltage or also the battery charge voltage?
What happens if the batteries run completely dead? When AC power is restored, will the power supply still boot up properly and provide DC power for our load and start charging the dead battery? What do you all recommend for fuses and breakers as well for a microsite like this? Any pics and/or part numbers would be greatly appreciated. I've found plenty of info on the DIN rail solutions but not seen any pics with the AD-155 yet. Thank you all! On Mon, Mar 20, 2017 at 1:51 PM, David Hulsebus <[email protected]> wrote: > I discussed this last week with a power engineer. > > We plan to use 4 Trojan T105 batteries in series to create a 24V string. > > With 280 Ah batteries they said we would need a 40 amp charging circuit if > I want to run from DC while batteries are also being charged. I use 8 amps > of continuous power. > > Here are the two devices he spec'd for the project. > > DLS-27-40/IQ4 Iota charger > > RSD-300B-24 Meanwell 24V DC output 11.3A > > The power guy said the biggest mistake made is not sizing the charge > device large enough. Sure we only need 8 amps, but the batteries may > consume 30 or more during a bulk charge. > > Dave Hulsebus > > On 3/20/2017 2:10 PM, Scott Lambert wrote: > > We've had a lot of failures with the AD-155B. That could be something > we're doing wrong. > > If you end up with a couple of AFs or some LTE gear onsite, you will want > more than 150w. I'm leaning more toward having a 24v power supply that > knows how to maintain batteries and running the load straight off the > battery bank. > > > > On March 20, 2017 12:28:39 PM CDT, Josh Baird <[email protected]> > <[email protected]> wrote: >> >> Just use a AD-155B or AD-155C like has been said. Don't bother with 12V. >> >> On Mon, Mar 20, 2017 at 1:25 PM, Darin Steffl <[email protected]> >> wrote: >> >>> Justin, >>> >>> Our planned load for this site is only 70 watts for two backhauls, an >>> omni, and netonix. This should be well within range of the 155 watt power >>> supply, no? Our ethernet runs are also only 30 feet or less. >>> >>> I also don't see that the voltage is adjustable on the AD-155 though? >>> Spec sheet doesn't mention it or have a picture of that. >>> >>> On Mon, Mar 20, 2017 at 12:21 PM, Justin Wilson <[email protected]> wrote: >>> >>>> Don’t skimp by going with the lower voltage. You will run into an >>>> amperage issues pretty quickly. Seen a 12-13 volt site with 1 backhaul and >>>> an omni run into amperage issues within a week. Voltage is fine, just way >>>> too much amperage. It’s not worth the headache. >>>> >>>> Justin Wilson >>>> [email protected] >>>> >>>> --- >>>> http://www.mtin.net Owner/CEO >>>> xISP Solutions- Consulting – Data Centers - Bandwidth >>>> >>>> http://www.midwest-ix.com COO/Chairman >>>> Internet Exchange - Peering - Distributed Fabric >>>> >>>> On Mar 20, 2017, at 1:11 PM, Darin Steffl <[email protected]> >>>> wrote: >>>> >>>> Hello all, >>>> >>>> We're looking to build our first DC power site for small MicroPops and >>>> I see two options after reviewing the WISPA archives. >>>> >>>> The first option would be the the SDR-240-24 and DR-UPS40 with Two 12v >>>> batteries powering a Netonix DC switch. >>>> >>>> The second option we were looking at is just doing the AD-155A with one >>>> 12v battery but I see the charging current is only 0.5 amps and voltage is >>>> only 13.3V which is not an optimal float voltage. >>>> >>>> My question is, to keep cost down, would we be OK going the AD-155A >>>> route with the slightly lower float voltage with a 35ah battery? We're ok >>>> with the battery taking longer to charge but I'm just most worried if the >>>> 13.3V will wreck the battery or not. >>>> >>>> Thanks all >>>> >>>> -- >>>> Darin Steffl >>>> Minnesota WiFi >>>> www.mnwifi.com >>>> 507-634-WiFi >>>> <http://www.facebook.com/minnesotawifi> Like us on Facebook >>>> <http://www.facebook.com/minnesotawifi> >>>> >>>> >>>> >>> >>> >>> -- >>> Darin Steffl >>> Minnesota WiFi >>> www.mnwifi.com >>> 507-634-WiFi >>> <http://www.facebook.com/minnesotawifi> Like us on Facebook >>> <http://www.facebook.com/minnesotawifi> >>> >>> _______________________________________________ >>> Members mailing list >>> [email protected] >>> http://lists.wispa.org/mailman/listinfo/members >>> >>> >> > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > _______________________________________________ > Members mailing > [email protected]http://lists.wispa.org/mailman/listinfo/members > > > -- > Portative Technologies > 1995 Allison Lane, Suite 100 > Corydon, IN 47112 > > > > ------------------------------ > [image: Avast logo] > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > This email has been checked for viruses by Avast antivirus software. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > > _______________________________________________ > Members mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/members > > -- Darin Steffl Minnesota WiFi www.mnwifi.com 507-634-WiFi <http://www.facebook.com/minnesotawifi> Like us on Facebook <http://www.facebook.com/minnesotawifi>
