I used a Tripp-Lite APC750 that we have to charge the batteries. It's a 12v system though, so to keep it simple for the test I just rewired the batteries in series to get 24v and then plugged the batteries in to the circuit without anything in between (TrippLite was disconnected as well). Just raw DC power straight from the trough. :)
We do have a Traco TSP-BCM24A which I used to charged the batteries back up which I should have used (hindsight). Oddly enough the batteries seem to be fine, they are holding steady at about 24v, have not tested capacity yet though. So note to self, use a charge controller next time, it has the LVD built in. Got it. -- Christopher Tyler MTCRE/MTCNA/MTCTCE/MTCWE Total Highspeed Internet Services 417.851.1107 ----- Original Message ----- From: "Adam Moffett" <[email protected]> To: [email protected] Sent: Wednesday, April 8, 2015 2:29:15 PM Subject: Re: [AFMUG] Low Voltage Disconnect LVD is a built in feature on the Meanwell AD-155 and the Traco TSP BCM. It's also a built in feature on solar controllers. What are you using for a charger? > We are currently testing using two 12v 100Ah telecom batteries in series. > They are slightly expensive to replace, especially when we will have four (or > more) at some sites, most will have two. > > I'm using a Meanwell RSD-100B-24 regulator for the Tik RB-493G router right > now. Looks like the cutout for the regulator is around 16v from what I can > decipher from the datasheet. > My test radios (2 Canopy and 2 UBNT) are connected to the battery without > regulation. > > This setup will drain the batteries until they are pretty much dead and > buried. I ran them over the weekend and I figured it would stop draining > around 10v at worst, it didn't. They ended up around 6v in parallel or 3v per > battery. I figure I shaved off some capacity and lifetime of my test > batteries with that, hopefully not too much. >
