<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">I guess I’d talk to the battery company about the batteries. </div><div dir="ltr"><br></div><div dir="ltr">I mean if they actually froze I suppose the separators could have been damaged which could lead to all sorts of bad issues? Is that worth the risk? </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">But if you’re thinking of total replacement, midnite has everything you need and it’s in your neck of the woods. </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></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Nov 22, 2024, at 10:55 AM, Kevin Pegg via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal">Hi Wrenches, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve been asked to take on a project that was abandoned for 16 months. It has 3 stacks of 400Ah 51.2V Lithium batteries (gsl-energy) tied to a Sol-Ark. It was running at one point spring of 2023 with generator charging but has been offline
dark for over a year. PV is still in crates. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The batteries sat in an unheated unfinished building winter 23/24 and it would have got down to -40C (-40F) for weeks during winter cold snaps. The BMS did not power on, did not spend time troubleshooting during the initial assessment as
I wanted to learn more. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The battery specs say storage no colder than 0c (32F) and operation no colder than -20c (-4F).
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What I am trying to determine is if those batteries are salvageable, or damaged and if we should just replace them with new. I am also tempted to replace the sol-ark, haven’t worked with that brand before but am not impressed with what
I have heard from other people’s experiences. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-ligatures:none">Kevin Pegg<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">EA Energy Alternatives Ltd.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">37471 Hwy 16 E <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">Telkwa, BC V0J 2X2<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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