<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)"><style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@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:"Century Gothic";
panose-1:2 11 5 2 2 2 2 2 2 4;}
@font-face
{font-family:Webdings;
panose-1:5 3 1 2 1 5 9 6 7 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
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;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Century Gothic",sans-serif;
color:black;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Century Gothic",sans-serif;
color:black;
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 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:black'>Return amps = End amps sorry.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Century Gothic",sans-serif;color:#002060'>----------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'>Dana Orzel Great Solar Works, Inc.</span><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'> </span><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'>C - 208.721.7003 dana@solarwork.com<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>Idaho Contractor - # 028765 Idaho PV # 028374<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>NABCEP # 051112-136 <a href="http://www.solarwork.biz"><span style='color:blue'>www.solarwork.biz</span></a><o:p></o:p></span></p><p class=MsoNormal><u><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>"Responsible Technologies for Responsible People since 1988" </span></u><u><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p></o:p></span></u></p><p class=MsoNormal style='background:white'><b><span style='font-size:18.0pt;font-family:Webdings;color:green'>P</span></b><span style='font-family:"Helvetica",sans-serif;color:navy'> </span><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:green'>Please consider the environment before printing this email.</span><span style='font-family:"Helvetica",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Dana<br><b>Sent:</b> Tuesday, September 11, 2018 8:08 PM<br><b>To:</b> 'RE-wrenches' <re-wrenches@lists.re-wrenches.org><br><b>Subject:</b> Re: [RE-wrenches] Trojan L16RE-2V set-points<o:p></o:p></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'>Return amps at 0 is physically impossible I think. The lowest Return amps I have ever seen acknowledged by a charge controller on a 24-volt set was 3-4 amps on a new set of batteries. Older sets 6-8 amps.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'>I was trying to see how low you could go before it would stop Bulk.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'>29.8 for 6 hours? was cooking them plates& boiling off electrolyte. These batteries must have been so hot.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'>To Float my 48-volt HUP set takes about 250-300 watts with no load. 5.21-6.25 amps.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-family:"Century Gothic",sans-serif;color:#002060'>----------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'>Dana Orzel Great Solar Works, Inc.</span><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'> </span><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Century Gothic",sans-serif;color:black'>C - 208.721.7003 <a href="mailto:dana@solarwork.com">dana@solarwork.com</a><o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>Idaho Contractor - # 028765 Idaho PV # 028374<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>NABCEP # 051112-136 <a href="http://www.solarwork.biz">www.solarwork.biz</a><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><u><span style='font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black'>"Responsible Technologies for Responsible People since 1988" <o:p></o:p></span></u></p><p class=MsoNormal style='margin-left:.5in;background:white'><b><span style='font-size:18.0pt;font-family:Webdings;color:green'>P</span></b><span style='font-family:"Helvetica",sans-serif;color:navy'> </span><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:green'>Please consider the environment before printing this email.</span><span style='font-family:"Helvetica",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:1.0in'><b>From:</b> RE-wrenches <<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>> <b>On Behalf Of </b>Mac Lewis<br><b>Sent:</b> Tuesday, September 11, 2018 6:44 PM<br><b>To:</b> RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br><b>Subject:</b> [RE-wrenches] Trojan L16RE-2V set-points<o:p></o:p></p><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p><div><p class=MsoNormal style='margin-left:1.0in'>Hello wrenches,<o:p></o:p></p><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>I inspected a system that another company had installed. It had single string of 12 x Trojan L16RE-2V batteries about 2 years old. They had experienced a battery melt-down. It looks as though the meltdown had occurred internally, not from a bad connection.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>The system was dual stack Outback VFXR-3524A inverters (to be precise one was a sealed unit). The set-points were as follows:<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Absorb Voltage was 29.8V<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Absorb Time was 6.0 hours<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Float Voltage was 27.0V<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Rebulk Voltage was 27.0V<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>End Amps was 0A<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>These settings extended similarly to 2 x FM80 charge controllers.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>I was able to jumper the melted battery and get her power in 15 minutes. Her installer had left her without power for 2 weeks. My clients will kill me if that happened!<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Anyway, I believe these set-points are way out of whack and too aggressive. The voltage is OK (Trojan recommends ~29.6V for this) but the Absorb time seems way too long, Rebulk is too high and end amps isn't helping. However, Im not finding a definitive article from Trojan that describes typical Absorb times or even how to adjust towards a good Absorb Time, based on specific gravity measurements or amperage absorption. <o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>My diagnosis is that these batteries have been cooked over the past 2 years. In the electrolyte, there is noticeable "floaties". The client said that the original installer had accused her of not using distilled water, but I don't believe that would cause her symptoms. I believe the floaties are plate material.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>I'd be interested in wrenches opinions familiar with these batteries if these are appropriate settings for a low energy user. I will attempt to get through to Trojan as well.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'>Thanks in advance<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><br clear=all><o:p></o:p></p><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><p class=MsoNormal style='margin-left:1.0in'>-- <o:p></o:p></p><div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-left:1.0in'><o:p> </o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:1.0in'>Mac Lewis<b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:#FF9900'><o:p></o:p></span></b></p><p style='margin-left:1.0in'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:#305A78'>"Yo solo sé que no sé nada." </span><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:#686868'>-Sócrates</span></b><b><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:#FF9900'><o:p></o:p></span></b></p></div></div></div></div></body></html>