<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Dan and Kienan </div><div dir="ltr"><br></div><div dir="ltr">I\u2019m curious how much water you are adding monthly? </div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr">Peltz Power. </div><div dir="ltr"><br>On Nov 22, 2018, at 7:08 AM, Dan Fink <<a href="mailto:danbob88@gmail.com">danbob88@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div>Wrenches; I have run my house on 12 volt NiFe batteries for 3 years now. I was going to write a long essay, but Kienen beat me to it. It's an excellent analysis, I agree with each of his bullet points.</div><div><br></div><div>All I'll add is that the batteries charge with decent efficiency up to 80% SOC. To get that last 20%, they do require 1.65 volts per cell, which most standalone inverter / chargers won't do off a generator - they freak out at a bit above 15v and shut down.</div><div><br></div><div>I've used 2 tactics to get that last 20% when using a generator, and I have experienced the same issue that Kienen mentioned -- they need to get a nice strong, charge cycle every so often or else they will behave like a heavily sulfated FLA, but of course the NiFes don't sulfate.</div><div><br></div><div>1) after charging to 80% SOC with the generator, both of my charge controllers (outback and midnite) have no problem being programmed to a 16.5v absorb cycle, I set absorb at 6 hours, on a sunny day that does the trick here.</div><div><br></div><div>2) If no long, sunny day available and you are forced to use a generator and charger that won't let you get to 16.5v, remove one cell from the series string, and charge the other 9 cells. Then put the one you removed back in the string, and remove one of the ones you discharged, and generator charge again. Then re-assemble back into a 10-cell string. I've only had to do this a couple times.</div><div><br></div><div>In general, I'm happy with these batteries, and happy to never have to deal with sulfation again, and remember I have the worst case scenario here with a 12v bank, undersized because of the greater DOD capability of NiFes, a refrigerator that surges very hard, and a magnum inverter that goes wonky with big surges at low voltages.</div><div><br></div><div>I would sell Iron Edison NiFes to a client...but unless they are a special sort of off-grid 12v person, I'd only do 48v because of the surge issue. </div><div><br></div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8px">Dan Fink</span><div style="font-size:12.8px">Professor of Solar Energy Technology, Ecotech Institute</div><div style="font-size:12.8px">IREC Certified Instructor\u2122 for: </div><div style="font-size:12.8px">~ PV Installation Professional</div><div style="font-size:12.8px">~ Small Wind Installer</div><div style="font-size:12.8px">Executive Director, Buckville Energy</div><div style="font-size:12.8px">NABCEP Registered Continuing Education Providers\u2122</div><div style="font-size:12.8px">NABCEP PV Associate</div><div style="font-size:12.8px"><br><a value="+19706724342" style="color:rgb(17,85,204)">970.672.4342</a></div><br> </div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br><br><div class="gmail_quote"><div dir="ltr">On Wed, Nov 21, 2018 at 11:35 AM <<a href="mailto:dan@foxfire-energy.com">dan@foxfire-energy.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><span style="font-family:Verdana;color:#000000;font-size:10pt"><div>Hi Guys, I have a potential customer inquiring about installing a pre packaged Iron Edison system.. I recall hearing strange stories about Ni-Fe batteries but don't recall the specifics. I have done a few searches with mixed results.. And have friends advising I run like a Rabbit.. Thought I'd run it by you folks for an update..</div><div> Thanks, and Happy Turkey Day.</div><div><br></div><div>db<br></div><div><br></div><div><br>Dan Brown<br>Foxfire Energy Corp.<br>Renewable Energy Systems<br>(802)-483-2564<br><a href="http://www.Foxfire-Energy.com" target="_blank">www.Foxfire-Energy.com</a><br></div><div></div></span></div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html" rel="noreferrer" target="_blank">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer" target="_blank">www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer" target="_blank">www.members.re-wrenches.org</a><br>
<br>
</blockquote></div></div>
</div></blockquote><blockquote type="cite"><div dir="ltr"><span>_______________________________________________</span><br><span>List sponsored by Redwood Alliance</span><br><span></span><br><span>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a></span><br><span></span><br><span>Change listserver email address & settings:</span><br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a></span><br><span></span><br><span>List rules & etiquette:</span><br><span><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a></span><br><span></span><br><span>Check out or update participant bios:</span><br><span><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a></span><br><span></span><br></div></blockquote></body></html>