<div><div dir="auto">Bill,</div></div><div dir="auto">What is the full charge voltage of your L-ion pack. The one I am using need 56 VDC. Next look at the module data sheet and see % or actual drop in peak power voltage per degree C. The modules will be about 60 degrees C which is 40 degrees higher that where they are rated. </div><div dir="auto">My guess is that if you need 56 volts from two 60 cell modules it will be a much lower current than peak current. The modules will be running closer to open circuit voltage. </div><div dir="auto">If you battery reaches full charge at 48 volts, it should charge fine, but you will have other bigger problems. </div><div dir="auto">David Katz</div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div>On Tue, Sep 11, 2018 at 3:04 PM Bill Battagin <<a href="mailto:frenergy@psln.com">frenergy@psln.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>I've been on hold with OB for about 40 minutes now and I need to
know if 2 SW PVs with a Voc of 39.9 and a Vmpp of 31.3 will do an
effective job of charging a 48 volt LA battery especially with
temps of 95 degrees. Anybody have experience with this or
similar, Appreciate the feedback. It just seems I'm a little low
in Vmpp if I want to equalize when its hot. Will it be even more
questionable in 10 years as PVs age?<br>
</p>
<p>OB did just pickup only to tell me I need Java for the string
sizing tool and he can't help me with this configuration.</p>
<p>Bill<br>
</p>
<br>
<div class="m_6879435072246311821moz-cite-prefix">On 9/11/2018 1:28 PM, Sindelar Solar
wrote:<br>
</div>
<blockquote type="cite">
<p>If it's a 48V system, you might also look at Blue Ion LiFePo
batteries and eliminate the lead for good. I just installed my
first set and consider it a game changer.<br>
</p>
<p>Allan<br>
</p>
<div class="m_6879435072246311821moz-cite-prefix">On 9/11/2018 1:44 PM, Steve Romo
wrote:<br>
</div>
<blockquote type="cite">
<div>
<div class="gmail_default" style="font-size:small">Good
afternoon everyone, </div>
<div class="gmail_default" style="font-size:small"><br>
</div>
<div class="gmail_default" style="font-size:small">What has
been your experience with the Outback OPzV battery? I have a
client who destroyed a set of Solar One HUP batteries (2490
A/HR) by forgetting to water them for a year. We are looking
to take watering out of the equation.</div>
<div class="gmail_default" style="font-size:small">He does
need this much storage (maybe more) My next thought was 3
strings of GS SLR 1000 batteries (cycle life is a lot
better but at twice the cost) </div>
<div class="gmail_default" style="font-size:small">I
appreciate any and all input. <br>
</div>
-- <br>
<div class="m_6879435072246311821gmail_signature" data-smartmail="gmail_signature">
<div>
<div>
<div><span style="font-size:12.8000001907349px">Steve Romo</span></div>
<div><span style="font-size:12.8px">Mountain
Power Solutions LLC</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">NABCEP
certified PV Installer #110112-124</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Kohler
Certified Generator Technician</span><br style="font-size:12.8000001907349px">
<span style="font-size:12.8000001907349px">Generac
Certified Generator Technician</span><br style="font-size:12.8000001907349px">
<br style="font-size:12.8000001907349px">
<a href="tel:970-433-6316" value="+19707120155" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">970-433-6316</a><br>
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<div class="m_6879435072246311821WordSection1">
<p class="MsoNormal" style="line-height:normal"><b><span>Allan
Sindelar</span></b><span><br>
</span><a href="mailto:allan@sindelarsolar.com" target="_blank"><span>allan@sindelarsolar.com</span></a><span><br>
</span><span>NABCEP
Certified PV Installation Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder (Retired), <span>Positive Energy, Inc<span class="m_6879435072246311821GramE">.</span></span><br>
<b>505 780-2738 cell</b></span><span><u></u><u></u></span></p>
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