<div dir="ltr">You can absolutely charge to 100% and you can discharge to 100%. Lithium is in another world compared to Lead Acid. You don't see LA cars driving around.<div>But you shouldn't leave Lithium at 100% for months on end, it can be detrimental. That's not likely to be an issue for solar systems.</div><div>Your absorption voltages are only for non-485 inverters that don't know about Lithium. The question was whether you can charge to 100% and yes, you absolutely can, because 100% is no 100%, there is a recommended voltage and a do-not-exceed voltage.<br><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 1, 2021 at 2:43 PM frenergy <<a href="mailto:frenergy@psln.com">frenergy@psln.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>
<p>Hey Folks,</p>
<p> From the SimpliPHI/Outback integration guide
download, using an Outback (I assume any brand of) charge
controller (EG: FM80, FM60, FM100), their chart shows absorbtion
voltage at 56.4 for 51.2 nom PHI batteries with time set at 6
minutes, page 18. If using the inverter, they show 54.0 volts for
2 hrs, page 13.</p>
<p> I found this at their website:
<a href="https://simpliphipower.com/product-documentation/" target="_blank">https://simpliphipower.com/product-documentation/</a></p>
<p>then scroll down. There may be a longevity advantage to not
fully charging L-ion batteries but if you're only charging to 80%
and not really supposed to go below 20% SOC then L-ion batteries
aren't looking much better than FLA batteries in terms of
capacity.</p>
<p>Bill</p>
<p>Feather River Solar Electric<br>
</p>
<div>On 11/1/2021 10:03 AM, Chris Mason
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">There's no benefit to charging to 100%. If the
charging parameters are set up correctly, you'll never really
get to 100%.
<div>If you look at most prismatic cells, the absolutely maximum
voltage is 3.65V. My systems are set up to charge to 3.4V or
54.4V. I take that as 100%.</div>
<div><br>
</div>
<div> </div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun, Oct 31, 2021 at 12:19
PM <<a href="mailto:drake.chamberlin@redwoodalliance.org" target="_blank">drake.chamberlin@redwoodalliance.org</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"><br>
I have a client that insists it is better not to charge
lithium <br>
batteries to 100%. Is there any truth to this?<br>
<br>
Thanks,<br>
<br>
Drake<br>
<br>
<br>
Drake Chamberlin<br>
Athens Electric LLC<br>
Ohio Electrical Contractor\u2019s License 44810<br>
CO Master Electrician\u2019s License 4526<br>
NABCEP Certified PV Installation Professional<br>
<br>
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<div dir="ltr"><font color="#666666">Chris Mason</font></div>
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<pre cols="72">--
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
<a href="http://www.frenergy.net" target="_blank">www.frenergy.net</a></pre>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><font color="#666666">Chris Mason</font></div><div dir="ltr"><div><span style="font-size:13px"><font color="#666666">Solar systems designer</font></span></div><div><span style="font-size:13px"><font color="#666666">Generac Generators Industrial technician</font></span></div><div><font color="#666666"><br></font></div><div><font color="#666666">Comet Systems Ltd DBA Comet Solar<br>Anguilla Cell 264.235.5670</font></div><div>WhatsApp <span style="color:rgb(102,102,102)">264.235.5670</span></div><div><font color="#666666">Skype: netconcepts</font></div><div><font color="#666666"><a href="http://www.cometenergysystems.com/" target="_blank">www.cometsolar.com</a></font></div></div></div></div>