<div dir="auto">Dana, <div dir="auto">Having two inverters makes this a little easier in a sense. One inverter matches my meter. The other inverter is reading 0.6v lower than my meter. </div><div dir="auto"><br></div><div dir="auto">Sol-Ark suggested a factory reset, and a firmware update. After both of those, I am still seeing the same voltage difference.</div><div dir="auto"><br></div><div dir="auto">In case this means anything to anyone, the first inverter (master, reading a lower voltage) was installed in 2021. The second inverter was just installed recently. I also had to swap out the MCU board on that master inverter in order to get the firmware to match on both inverters.</div><div dir="auto"><br></div><div dir="auto">Cheers,</div><div dir="auto">Dave</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, May 29, 2025, 11:33 AM Dana Orzel via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="#467886" vlink="#96607D" style="word-wrap:break-word">
<div class="m_7026516930678278429WordSection1">
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif">Verify with a second or third meter.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif">_________________________________________________________<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">Dana Orzel </span><span style="font-family:"Century Gothic",sans-serif;color:#275317">GREAT SOLAR WORKS! <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">C – 208.721.7003 E –
<a href="mailto:dana@solarwork.com" target="_blank" rel="noreferrer"><span style="color:#275317;text-decoration:none">dana@solarwork.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">W - www. <a href="http://greatsolarworks.com" target="_blank" rel="noreferrer">greatsolarworks.com</a> <a href="http://www.solarwork.com/" target="_blank" rel="noreferrer"><span style="color:#275317;text-decoration:none">www.solarwork.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><i><u><span style="font-family:"Century Gothic",sans-serif;color:#275317">“Responsible Technologies for Responsible People since 1988!”<u></u><u></u></span></u></i></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
<br><br><br>---------- Forwarded message ----------<br>From: Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">re-wrenches@lists.re-wrenches.org</a>><br>To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">re-wrenches@lists.re-wrenches.org</a>><br>Cc: Dave Tedeyan <<a href="mailto:dave@sungineersolar.com" target="_blank" rel="noreferrer">dave@sungineersolar.com</a>><br>Bcc: <br>Date: Wed, 28 May 2025 19:32:13 +0000<br>Subject: [RE-wrenches] Sol-Ark battery calibration<br>
<div>
<div dir="auto">
<div>Does anyone know whether you can calibrate the battery voltage on Sol-Ark inverters? I am on site with two 12k-p inverters. My meter agrees with one of them, and the other inverter (the master) is displaying 0.6v lower than both my meter and the other
inverter.</div>
<div dir="auto"><br>
</div>
<div dir="auto">I have gone through two tech support people who are not being much help. </div>
<div dir="auto"><br>
</div>
<div dir="auto">There are lead acid batteries here.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thanks!</div>
<div dir="auto">-Dave</div>
<div><br>
</div>
<div data-smartmail="gmail_signature">
<div dir="ltr"><br style="color:rgb(34,34,34)">
<div dir="ltr" style="color:rgb(34,34,34)">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr"></div>
</div>
</div>
<div dir="ltr">
<table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;color:rgb(68,68,68);width:525px;font-size:11pt;font-family:Arial,sans-serif">
<tbody>
<tr>
<td width="125" valign="top" rowspan="6" style="padding:0px 10px 0px 0px;font-size:10pt;border-right:1px solid rgb(236,189,0);width:125px;vertical-align:top">
<a href="https://www.sungineersolar.com/" style="color:rgb(51,122,183);background-color:transparent" target="_blank" rel="noreferrer"><img border="0" alt="Logo" width="105" src="https://sungineersolar.com/wp-content/uploads/2019/08/Logo-Image-Only-1.png" style="border:0px;vertical-align:middle;width:105px;height:auto"></a></td>
<td style="padding:0px 0px 0px 10px">
<table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;background-color:transparent">
<tbody>
<tr>
<td valign="top" style="padding:0px 0px 5px 10px;width:400px;vertical-align:top">
<span style="color:rgb(236,189,0);font-size:11pt;font-weight:700">Dave Tedeyan, P.E.<br>
</span><span style="font-size:11pt;font-weight:700"><font color="#ecbd00">Owner | Sungineer Solar</font><br>
</span></td>
</tr>
<tr>
<td valign="top" style="padding:5px 0px 5px 10px;font-size:10pt;vertical-align:top;line-height:17px">
<span style="color:rgb(236,189,0)"><span style="font-weight:700">p: </span></span><span style="font-size:10pt;color:rgb(0,0,0)">he | him | his</span><span style="color:rgb(236,189,0)"><span style="font-weight:700"><br>
a: </span></span><span style="font-size:10pt;color:rgb(0,0,0)">1653 Slaterville Rd.</span> <span style="font-size:10pt;color:rgb(0,0,0)">| Ithaca, NY 14850</span><br>
<span style="color:rgb(236,189,0)"><span style="font-weight:700">w:</span></span><a href="http://www.sungineersolar.com/" rel="noopener noreferrer" style="color:rgb(51,122,183);background-color:transparent" target="_blank"><span style="font-size:10pt;color:rgb(0,0,0)"> www.sungineersolar.com</span></a><br>
<span style="color:rgb(236,189,0)"><span style="font-weight:700">c:</span></span><span style="font-size:10pt;color:rgb(0,0,0)"> (607) 270-0370</span></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" 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://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div>