<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Thanks Jerry. </div><div dir="ltr"><br></div><div dir="ltr">It turns out the client would like more AC power so the inverter upgrade is looking probable vs just a battery swap. </div><div dir="ltr"><br></div><div dir="ltr">I’ll head out soon to review the system and figure things out. </div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Jul 15, 2025, at 7:52 PM, Jerry Shafer via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="auto">Jay, Wrenches,<div dir="auto">Fortress works great, no closed loop from any battery manufacturer and the SI Inverter, l got a great price on the fortress, we should talk</div><div dir="auto">Jerry</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Jul 15, 2025, 6:43 AM jay 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">HI All,<br>
<br>
I might be inheriting a 12 yr old SI off grid system, that has a dying Absolyte battery. <br>
<br>
<br>
I know there have been some discussions on the SI and lithium. <br>
<br>
I’m just trying to understand what the options are with closed vs open loop, basically can it be done. <br>
<br>
If I do get the project, I will happily pay someone who’s done all the hard work for the education to tell me what the programming steps are. <br>
<br>
And at what point does it make sense to just remove the SI and install a AIO? <br>
<br>
thanks in advance.<br>
<br>
jay<br>
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