<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=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><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:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Century Gothic";
panose-1:2 11 5 2 2 2 2 2 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;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal-reply;
font-family:"Century Gothic","sans-serif";
color:windowtext;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
.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 bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";color:windowtext'>Any disconnection of battery power to the inverter will lose the settings definitely have them written down & there are settings that are no appropriate for off grid and long battery life.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";color:windowtext'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:windowtext'>Dana Orzel - Great Solar Works, Inc - E - <b>dana@solarwork.com</b> - V <b>970.626.5253</b><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:windowtext'>F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Century Gothic","sans-serif";color:windowtext'>"Responsible Technologies for Responsible People since 1988"<o:p></o:p></span></p><p class=MsoNormal><b><i><span style='font-size:13.5pt;color:green'>P </span></i></b><b><i><span style='font-size:7.5pt;color:green'>Please consider the environment before printing this email</span></i></b><b><i><span style='color:#99CC00'><o:p></o:p></span></i></b></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic","sans-serif";color:windowtext'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Kent Osterberg<br><b>Sent:</b> Tuesday, May 15, 2012 8:29 PM<br><b>To:</b> glenn.burt@glbcc.com; RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Battery changing on SW inverter<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Glenn,<br><br><a href="http://www.righthandeng.com/hm_swca.htm">Righthand Engineering</a> still makes the memory backup device you are thinking about. I recommend going though all the menus before you work on the system and writing down the settings. You may even find that there are some settings that are not appropriate. Keep a copy of how you left the the system programmed in case there are ever any questions or need to reprogram it again later.<br><br><o:p></o:p></p><pre>Kent Osterberg<o:p></o:p></pre><pre>Blue Mountain Solar, Inc.<o:p></o:p></pre><pre><a href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a><o:p></o:p></pre><p class=MsoNormal><br>On 5/15/2012 1:44 PM, Glenn Burt wrote: <o:p></o:p></p><p class=MsoNormal>Hello wrenches,<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I am quoting a job to do a simple battery bank replacement on an existing system that has a Trace SW4048 inverter.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I have not done any substantial work on these revered systems, but seem to remember that removing the batteries will lose all the custom program settings in the inverter.<o:p></o:p></p><p class=MsoNormal>I seem to recall there was a product that could be purchased that used a 9V battery to hold up the setting memory while the main batteries were disconnected. Could anyone tell me the name of it?<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Or is there a better solution out there? I see a couple of products that claim to read/write the SW memory from Right Hand Engineering and Maui Solar Software – anyone used them or recommend against them?<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><span style='font-size:10.5pt;font-family:Consolas'>Glenn Burt</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>glb, Consulting Company</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>NABCEP Certified Solar PV Installer TM</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>NYSERDA Eligible Installer</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Microsoft Certified Professional</span><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></div></body></html>