<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@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;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
font-size:10.0pt;
font-family:"Courier New";}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
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]-->
</head>
<body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Ray,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can’t speak to the Fortress product, but Discover will do what they call “dynamic charging” in closed-loop installations. Basically, the BMS will tell the power electronics how to charge the battery, which will lead to a better charging
cycle. For example, if the batteries are discharged, and their cell temperature is low, the BMS will push the charging voltage above what the recommended setting would be in an open loop setup.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I saw David Norman give a presentation about this topic at the NABCEP conference last year. It was very insightful.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s a short article about it: <a href="https://blog.discoverbattery.com/benefits-of-closed-loop-charging-with-lynk">
https://blog.discoverbattery.com/benefits-of-closed-loop-charging-with-lynk</a><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">Will<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org>
<b>On Behalf Of </b>Ray Walters via RE-wrenches<br>
<b>Sent:</b> Thursday, February 9, 2023 5:35 PM<br>
<b>To:</b> re-wrenches@lists.re-wrenches.org<br>
<b>Cc:</b> Ray Walters <ray@solarray.com><br>
<b>Subject:</b> [EXTERNAL] [RE-wrenches] Solark-Fortress Com? (was Fortress Battery Heater)<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p><strong><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#CC3300;background:#FFD480">CAUTION:</span></strong><span style="font-size:10.0pt;color:black;background:#FFD480"> This email originated from outside of the organization. Do not
click links or open attachments unless you recognize the sender and know the content is safe.</span><o:p></o:p></p>
<p> <o:p></o:p></p>
<div>
<p>Hi Chris;<o:p></o:p></p>
<p>That's not for the eVault. Other Wrenches have mentioned using a pet heating pad with a 120 vac plug in thermostat. I'm going to try that, I'll report back to the list what I find.
<o:p></o:p></p>
<p>Secondly, I am having issues figuring out how to do the closed loop coms. The Fortress instructions contradict themselves on how to even make up the proper CANbus cable, as apparently MODbus is not stable anymore, after the latest Solark firmware upgrades.
I'm about to just apply the KISSbus, which is to blow off the closed loop com all together, and
<b><i>K</i></b><i>eep <b>I</b>t <b>S</b>imple <b>S#@$%</b></i>!, otherwise known as No Coms at all.
<o:p></o:p></p>
<p>I've screwed with Com stuff since the 90s, but usually been disappointed, to downright horrified with the final results. Somebody explain to me like a 2 year old again, why closed loop is so much better? Think off grid, where reliability is 10 times more
important than squeezing an extra 5% capacity out of the battery.... Notes in the online instructions such as "<i>Failure to properly upgrade the firmware may cause the battery to stop working!", </i> are not making we want to push ahead with closed loop
either.<o:p></o:p></p>
<p>Ray<o:p></o:p></p>
<div>
<p class="MsoNormal">On 2/9/2023 11:01 AM, Chris Schaefer via RE-wrenches wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Ray, <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I'd suggest reaching out to the Fortress techie's as they just introduced a heater product for their enclosure products. While I don't believe they have a unit specif to the eVault but you should be able to make it work.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Christopher<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Wed, Feb 8, 2023 at 6:43 PM Jerry Shafer via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class="MsoNormal">Pet heater have worked for me, I air gap a sealed heater box under the battery, thermostat inside the top of the battery. It's slow and low power but does the trick
<o:p></o:p></p>
<div>
<p class="MsoNormal">Fun times<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Wed, Feb 8, 2023, 3:05 PM Ray Walters via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<p class="MsoNormal" style="margin-bottom:12.0pt">Hi All;<br>
<br>
I have a fresh Fortress Evault installation with a Solark inverter. The <br>
batteries are indoors in the center of the house, but the customer is <br>
not there full time, so the battery is unfortunately going below <br>
freezing. What are the best options for setting up a heating system for <br>
the E Vault?<br>
<br>
Here are ideas that I have not tried, but am considering:<br>
1) add a 240 v, 1000 w baseboard heater in the room near the battery <br>
that is wired to only run off the generator. Run the generator until <br>
the heat comes up, and then hopefully after 30 minutes, the battery <br>
would begin accepting a charge.<br>
<br>
2) Add an 120 vac heating blanket under the evault that would be wired <br>
to a thermostat, but also have a relay control from the PV system, so <br>
that the heater would only operate when the sun was out, and the battery <br>
was below 50F. I don't quite know how to set this up with the Solark's <br>
load controls.<br>
<br>
I've considered some DC options, but they don't make much sense, since <br>
the inverter has to be on to charge from PV anyway.<br>
<br>
The long term plan is for the client to finish the insulation, and sheet <br>
rock, and add a gas wall heater in there as needed.<br>
<br>
Thanks,<br>
<br>
Ray Walters<br>
Remote Solar<br>
in the Colorado mountain cold.....<br>
<br>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="https://urldefense.com/v3/__http:/re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13xntRMUQ$" target="_blank">
http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">
RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL131rUae9B$" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://urldefense.com/v3/__https:/www.mail-archive.com/re-wrenches@lists.re-wrenches.org/__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL130uFLxPI$" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13zSDOT-Y$" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="https://urldefense.com/v3/__http:/www.re-wrenches.org/etiquette.htm__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13-ZWuS23$" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="https://urldefense.com/v3/__http:/www.members.re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL133Qi5YPL$" target="_blank">http://www.members.re-wrenches.org</a><o:p></o:p></p>
</blockquote>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="https://urldefense.com/v3/__http:/re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13xntRMUQ$" target="_blank">
http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">
RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL131rUae9B$" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://urldefense.com/v3/__https:/www.mail-archive.com/re-wrenches@lists.re-wrenches.org/__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL130uFLxPI$" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13zSDOT-Y$" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="https://urldefense.com/v3/__http:/www.re-wrenches.org/etiquette.htm__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13-ZWuS23$" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="https://urldefense.com/v3/__http:/www.members.re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL133Qi5YPL$" target="_blank">http://www.members.re-wrenches.org</a><o:p></o:p></p>
</blockquote>
</div>
<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal">-- <o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<div>
<p align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Chris Schaefer’s<br>
</span><a href="http://www.solarandwindfx.com" target="_blank"><span style="font-size:9.5pt;text-decoration:none"><img border="0" width="200" height="40" style="width:2.0833in;height:.4166in" id="_x0000_i1026" src="http://www.solarandwindfx.com/wp-content/uploads/2015/01/Solar-Wind-FX-Logo.png"></span></a><br>
<i><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D">Tel/Fax 585-229-2083 or Cell 585-748-1870 <br>
</span></i><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">5115 South Hill Road ~ Canandaigua New York 14424<br>
<a href="https://urldefense.com/v3/__http:/www.solarandwindfx.com__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13-Xdex0q$" target="_blank">www.solarandwindfx.com</a> ~ E-mail:
</span></i><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:blue"><a href="mailto:chris@solarandwindfx.com" target="_blank">chris@solarandwindfx.com</a></span></i><o:p></o:p></p>
<p align="center" style="text-align:center"><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><img border="0" width="200" height="56" style="width:2.0833in;height:.5833in" id="_x0000_i1025" src="http://solarandwindfx.com/wp-content/uploads/2015/01/certs.jpg"></span></i><o:p></o:p></p>
<p align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Thomas Jefferson, the author of our great Constitution, once said, "democracy" will cease to exist when you take away from those who are willing
to work and give to those who would not."</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>List sponsored by Redwood Alliance<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Pay optional member dues here: <a href="https://urldefense.com/v3/__http:/re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13xntRMUQ$">http://re-wrenches.org</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Change listserver email address & settings:<o:p></o:p></pre>
<pre><a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL131rUae9B$">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>There are two list archives for searching. When one doesn't work, try the other:<o:p></o:p></pre>
<pre><a href="https://urldefense.com/v3/__https:/www.mail-archive.com/re-wrenches@lists.re-wrenches.org/__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL130uFLxPI$">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><o:p></o:p></pre>
<pre><a href="https://urldefense.com/v3/__http:/lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13zSDOT-Y$">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>List rules & etiquette:<o:p></o:p></pre>
<pre><a href="https://urldefense.com/v3/__http:/www.re-wrenches.org/etiquette.htm__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL13-ZWuS23$">http://www.re-wrenches.org/etiquette.htm</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Check out or update participant bios:<o:p></o:p></pre>
<pre><a href="https://urldefense.com/v3/__http:/www.members.re-wrenches.org__;!!KPww_GFiJXw!aOirLqAKOkutrK3kXMVPQFUvTVwi5Ed2-z8al950WZ8AsjxzLvQv5vuWAD-edZoHz-NI79e9HeGbXJvZOXZT3SL133Qi5YPL$">http://www.members.re-wrenches.org</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
</blockquote>
</div>
</div>
<hr>
<p style="font-size:8pt; line-height:10pt;font-style:italic;font-family: 'Cambria','times roman',serif;">
Please be advised that this email may contain confidential information. If you are not the intended recipient, please notify us by email by replying to the sender and delete this message.</p>
</body>
</html>