<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Regarding thawing frozen batteries be real careful they can take an incredibly long time to thaw .</div><div><br></div><div>Lotta lead there to get up to temperature it is not in a hurry</div><div><br></div><div>Just my .02 !</div><div><br></div><div>Bob</div><div><br>On Dec 3, 2015, at 1:54 PM, Dan Fink <<a href="mailto:danbob88@gmail.com">danbob88@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Yes, you MUST thaw them completely first before trying anything, Sorry, I thought that went without saying.<div>Good point on the cost-benefit analysis, but when the cost of transportation of a new battery bank and removal of the old exceeds the retail price by 2 - 10x, it's worth trying. If the client can just drive an hour to Sam's Club and buy another set, a $600 service call is likely not worth it. Just direct them to the Battery University website and wash your hands of it.</div><div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="font-size:12.8000001907349px">Dan Fink</span><div style="font-size:12.8000001907349px">Adjunct Professor, Ecotech Institute</div><div style="font-size:12.8000001907349px">IREC Certified Instructor™ for: </div><div style="font-size:12.8000001907349px">~ PV Installation Professional</div><div style="font-size:12.8000001907349px">~ Small Wind Installer</div><div style="font-size:12.8000001907349px">Executive Director, Buckville Energy</div><div style="font-size:12.8000001907349px">NABCEP Accredited Continuing Education Providers™<br><a href="tel:970.672.4342" value="+19706724342" style="color:rgb(17,85,204)" target="_blank">970.672.4342</a></div><br> </div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Thu, Dec 3, 2015 at 9:14 AM, <a href="mailto:dana@solarwork.com">dana@solarwork.com</a> <span dir="ltr"><<a href="mailto:dana@solarwork.com" target="_blank">dana@solarwork.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>My experience with frozen batteries has ranges from plates being pushed around and consequently shorting to literally the size of the battery being broken open.</div><div>The first rule is never try to charge a frozen battery the battery needs to be thawed first before even attempting to charge I have stop trying to revive batteries that are that far gone.<br><br>Dana Orzel <a href="tel:208.721.7003" value="+12087217003" target="_blank">208.721.7003</a><div>Encourage Free Thinking Self Responsible Free Range Children</div></div><span class=""><div><br>On Dec 3, 2015, at 7:00 AM, Feather River Solar Electric <<a href="mailto:info@frenergy.net" target="_blank">info@frenergy.net</a>> wrote:<br><br></div></span><div><span class="">
Hey Folks,<br>
<br>
I came across an off-gridder yesterday whom was getting zero
support from the dealer he had purchased his small system from, self
installed, batteries in a lightly insulated box outside. When I
inspected the electrolyte levels I discovered it was frozen in some
cells, the voltage of the 48 volt pack was ~8 volts, I didn't check
individual batteries due to these facts...I'd seen "enough".
Recently temps have been in the high teens, though we are back up to
low 30's.<br>
<br>
He does not have a genny or battery charger! I have a DC
genny which I could use to charge these batteries but should I waste
my time and his money trying to save them? Others' experience with
this situation?<br>
<br>
TIA,<br>
<br>
Bill<br></span>
<FRS_working_logo, 50%.JPG><span class=""><br>
<pre cols="72">--
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
<a href="tel:530.284.7849" value="+15302847849" target="_blank">530.284.7849</a>
CA Lic 874049
<a href="http://www.frenergy.net" target="_blank">www.frenergy.net</a>
</pre>
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