<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<font size="2">Hi Mark,<br>
<br>
I can address the Prostar question.<br>
<br>
The Prostar can share the battery with the AC charging source, no
need to disconnect it when using that charger.<br>
And as long as the AC charger and solar can keep the battery
voltage above the LVD threshold, the Prostar load circuit<br>
will continue to power the loads.<br>
<br>
The one thing you do not want to do is to connect the AC charger
to the Prostar PV input. PWM charge controllers<br>
can not manipulate a "stiff" voltage source and that will cause
switching FET failure.<br>
<br>
Roy Butler<br>
Morningstar Technical Support<br>
<br>
<br>
</font>
<pre class="moz-signature" cols="72">
</pre>
<div class="moz-cite-prefix">On 12/18/2024 7:10 PM, Mark Frye via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite"
cite="mid:DM8P220MB048771B23FF036BFD477E9E8B1062@DM8P220MB0487.NAMP220.PROD.OUTLOOK.COM">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Generator"
content="Microsoft Word 15 (filtered medium)">
<style>@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}.MsoChpDefault
{mso-style-type:export-only;
mso-ligatures:none;}div.WordSection1
{page:WordSection1;}</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">Folks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am going to build a stand-alone power
supply for some telecom equipment.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I settled on MorningStar ProStar with their
EMC-1.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A few questions:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For emergency operation with days of
autonomy used up at or near LVD, is it OK to parallel an AC
powered battery charger such as IOTA onto the battery? Or do I
need to disconnect the charge controller from the battery and
load and connect a charger for the battery and a power supply
for the load?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Who is a good vendor for a skid mounted
outdoor battery box that is a step up from a Knack Box? Or is
it really OK to put the AGMS inside the same enclosure as the
electronics? If in the same enclosure do I still need some
screened louver vents (I would think so).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Mark Frye<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
List sponsored by Redwood Alliance
Pay optional member dues here: <a class="moz-txt-link-freetext" href="http://re-wrenches.org">http://re-wrenches.org</a>
List Address: <a class="moz-txt-link-abbreviated" href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a>
Change listserver email address & settings:
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a>
There are two list archives for searching. When one doesn't work, try the other:
<a class="moz-txt-link-freetext" href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a>
<a class="moz-txt-link-freetext" href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a>
List rules & etiquette:
<a class="moz-txt-link-freetext" href="http://www.re-wrenches.org/etiquette.htm">http://www.re-wrenches.org/etiquette.htm</a>
Check out or update participant bios:
<a class="moz-txt-link-freetext" href="http://www.members.re-wrenches.org">http://www.members.re-wrenches.org</a>
</pre>
</blockquote>
<br>
</body>
</html>