<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Agm batteries freeze, at sufficiently low temperatures and state of charge. They do have very low self discharge, so charging before it’s too cold should have them charged enough for the winter. (Assuming they’re disconnected, of course .). </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Nov 14, 2025, at 02:24, Philip Ethier <pethier7@gmail.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:monospace"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 14, 2025 at 1:34 AM Philip Ethier <<a href="mailto:pethier7@gmail.com" target="_blank">pethier7@gmail.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 dir="ltr"><div><div style="font-family:monospace">Absorbed Gas Mat batteries:</div></div></div></blockquote><div><br></div><div class="gmail_default" style="font-family:monospace">OOPS. <span style="color:inherit;font-size:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;font-family:"Linux Libertine",Georgia,Times,"Source Serif 4",serif">Absorbent glass mat</span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div style="font-family:monospace"><br></div><div style="font-family:monospace">If you leave a vehicle outside all winter in a cold climate without charging the AGM batteries, will they be ruined by the cold?</div><div style="font-family:monospace"><br></div><div style="font-family:monospace">I know that regular lead-acid batteries can freeze up, but I don't know about AGM batteries.</div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><span style="color:rgb(0,0,0);font-size:12.8px;background-color:rgb(255,255,255)"><font face="monospace">Phil Ethier, West Side, Saint Paul Minnesota, USA</font></span></div><div><span style="font-family:monospace;color:rgb(0,0,0)">2006 Gulf Stream Conquest Super C, 8.1, white</span></div><div><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><font face="monospace">2011 Cayman 2.9 PDK, white</font></span></div><div><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><font face="monospace">2021 Ford F-150 3500cc twin turbo, white</font></span></div><div><span style="background-color:rgb(255,255,255)"><font face="monospace">1991 Caterham 1700 Super Sprint, not white</font><br style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,"lucida grande",arial,helvetica,sans-serif"><a href="http://www.mnautox.com/" style="color:rgb(0,24,57);font-family:verdana,geneva,lucida,"lucida grande",arial,helvetica,sans-serif" target="_blank">www.mnautox.com<br></a></span><br></div></div></div></div></div></div></div>
</blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><span style="color:rgb(0,0,0);font-size:12.8px;background-color:rgb(255,255,255)"><font face="monospace">Phil Ethier, West Side, Saint Paul Minnesota, USA</font></span></div><div><span style="font-family:monospace;color:rgb(0,0,0)">2006 Gulf Stream Conquest Super C, 8.1, white</span></div><div><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><font face="monospace">2011 Cayman 2.9 PDK, white</font></span></div><div><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)"><font face="monospace">2021 Ford F-150 3500cc twin turbo, white</font></span></div><div><span style="background-color:rgb(255,255,255)"><font face="monospace">1991 Caterham 1700 Super Sprint, not white</font><br style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,"lucida grande",arial,helvetica,sans-serif"><a href="http://www.mnautox.com/" style="color:rgb(0,24,57);font-family:verdana,geneva,lucida,"lucida grande",arial,helvetica,sans-serif" target="_blank">www.mnautox.com<br></a></span><br></div></div></div></div></div></div></div>
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