<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"></div><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">It looks like the Boost versions of the Genasun only go up to an 8A input current rating. However, they have a footnote on the spec sheet that reads:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">"*Panel ratings have increased since we designed the GVB. Although we don't believe in changing specifications without a corresponding engineering change, based on both our customers' experiences over the years as well as the headroom we designed into the GVB, we feel comfortable recommending the GVB for panels with Imp up to 9A."<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">That won't work for a 420W module with an 11.05A Imp. Very good to know about this product, nonetheless. Thank you!</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason</div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><b><div style="text-align:center"><br></div></b></div></div></div></div></div></div></div></div></div><br></div><br><img width="0" height="0" class="mailtrack-img" alt="" style="display:flex" src="https://mailtrack.io/trace/mail/91ab71fcfb01b4726d95e534d6dca200e66f7ad9.png?u=1613865"><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 12, 2021 at 2:03 PM Mac Lewis <<a href="mailto:maclewis1@gmail.com">maclewis1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">There is a company called Genasun that I believe makes a boost solar charge controller to do this. They are in the marine world and I haven't poured over their specs but they are worth checking out. <div><br></div><div>Try looking at </div><h1 style="border:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-weight:normal;font-stretch:normal;line-height:1.4em;font-family:Ubuntu,sans-serif;margin:0px;outline:0px;padding:0px;vertical-align:baseline;color:rgb(27,30,31);letter-spacing:-1px;clear:none"><font size="2">Genasun GVB-8-Li</font></h1><div><div>Good Luck!</div><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 12, 2021 at 11:43 AM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" target="_blank">jason@floridasolardesigngroup.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div style="font-family:arial,helvetica,sans-serif"></div><div dir="auto"><div style="font-family:arial,helvetica,sans-serif">I want to charge a 51.2V LiPO battery with a single 420W 72-cell module. Vmp is 40.14V. </div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">It's one of those situations where I just need a lot of battery capacity as a backup for a specified time period, but it doesn't matter how long it takes to charge it back up. And I have space for exactly one 72-cell module.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">It's going to be a Victron inverter. I'm not sure if they make a DC-DC solution for this charging scenario or if there is another way to accomplish it without too much cost and complexity. I was half-heartedly thinking about an AC coupled microinverter, but that has drawbacks in terms of efficiency I think. Maybe that's not any worse than DC-DC conversion - I'm not sure. AC Coupling would probably be cheaper and easier. Monitoring might be difficult/limited. And AC coupling would require that the inverter be on (inverting) which isn't ideal for this situation either.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Thanks in advance,</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Jason Szumlanski</div><div style="font-family:arial,helvetica,sans-serif">Florida Solar Design Group</div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:"Times New Roman";font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p></font></b></span></div>
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