Re: [Shop-talk] AGM batteries: Protect from freezing?

[Philip Ethier <pethier7@gmail.com>]

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On Fri, Nov 14, 2025 at 1:34=E2=80=AFAM Philip Ethier <pethier7@gmail.com> =
wrote:

> Absorbed Gas Mat batteries:
>

OOPS. Absorbent glass mat

>
> If you leave a vehicle outside all winter in a cold climate without
> charging the AGM batteries, will they be ruined by the cold?
>
> I know that regular lead-acid batteries can freeze up, but I don't know
> about AGM batteries.
>
>
> --
> Phil Ethier, West Side, Saint Paul Minnesota, USA
> 2006 Gulf Stream Conquest Super C, 8.1, white
> 2011 Cayman 2.9 PDK, white
> 2021 Ford F-150 3500cc twin turbo, white
> 1991 Caterham 1700 Super Sprint, not white
> www.mnautox.com
>
>

--=20
Phil Ethier, West Side, Saint Paul Minnesota, USA
2006 Gulf Stream Conquest Super C, 8.1, white
2011 Cayman 2.9 PDK, white
2021 Ford F-150 3500cc twin turbo, white
1991 Caterham 1700 Super Sprint, not white
www.mnautox.com

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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_defa=
ult" style=3D"font-family:monospace"><br></div></div><br><div class=3D"gmai=
l_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Nov 14, 2025 at 1:34=
=E2=80=AFAM Philip Ethier &lt;<a href=3D"mailto:pethier7@gmail.com"; target=
=3D"_blank">pethier7@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex"><div dir=3D"ltr"><div><div style=3D"font-fami=
ly:monospace">Absorbed Gas Mat batteries:</div></div></div></blockquote><di=
v><br></div><div class=3D"gmail_default" style=3D"font-family:monospace">OO=
PS.=C2=A0<span style=3D"color:inherit;font-size:inherit;font-style:inherit;=
font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inheri=
t;font-family:&quot;Linux Libertine&quot;,Georgia,Times,&quot;Source Serif =
4&quot;,serif">Absorbent glass mat</span></div><blockquote class=3D"gmail_q=
uote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,2=
04);padding-left:1ex"><div dir=3D"ltr"><div><div style=3D"font-family:monos=
pace"><br></div><div style=3D"font-family:monospace">If you leave a vehicle=
 outside all winter in a cold climate without charging the AGM batteries, w=
ill they be ruined=C2=A0by the cold?</div><div style=3D"font-family:monospa=
ce"><br></div><div style=3D"font-family:monospace">I know that regular lead=
-acid batteries can freeze up, but I don&#39;t know about AGM batteries.</d=
iv><br clear=3D"all"></div><div><br></div><span class=3D"gmail_signature_pr=
efix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><div dir=3D"=
ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div><span style=3D=
"color:rgb(0,0,0);font-size:12.8px;background-color:rgb(255,255,255)"><font=
 face=3D"monospace">Phil Ethier, West Side, Saint Paul Minnesota, USA</font=
></span></div><div><span style=3D"font-family:monospace;color:rgb(0,0,0)">2=
006 Gulf Stream Conquest Super C, 8.1, white</span></div><div><span style=
=3D"color:rgb(0,0,0);background-color:rgb(255,255,255)"><font face=3D"monos=
pace">2011 Cayman 2.9 PDK, white</font></span></div><div><span style=3D"col=
or:rgb(0,0,0);background-color:rgb(255,255,255)"><font face=3D"monospace">2=
021 Ford F-150 3500cc twin turbo, white</font></span></div><div><span style=
=3D"background-color:rgb(255,255,255)"><font face=3D"monospace">1991 Caterh=
am 1700 Super Sprint, not white</font><br style=3D"color:rgb(0,0,0);font-fa=
mily:verdana,geneva,lucida,&quot;lucida grande&quot;,arial,helvetica,sans-s=
erif"><a href=3D"http://www.mnautox.com/"; style=3D"color:rgb(0,24,57);font-=
family:verdana,geneva,lucida,&quot;lucida grande&quot;,arial,helvetica,sans=
-serif" target=3D"_blank">www.mnautox.com<br></a></span><br></div></div></d=
iv></div></div></div></div>
</blockquote></div><div><br clear=3D"all"></div><div><br></div><span class=
=3D"gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_s=
ignature"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"lt=
r"><div><span style=3D"color:rgb(0,0,0);font-size:12.8px;background-color:r=
gb(255,255,255)"><font face=3D"monospace">Phil Ethier, West Side, Saint Pau=
l Minnesota, USA</font></span></div><div><span style=3D"font-family:monospa=
ce;color:rgb(0,0,0)">2006 Gulf Stream Conquest Super C, 8.1, white</span></=
div><div><span style=3D"color:rgb(0,0,0);background-color:rgb(255,255,255)"=
><font face=3D"monospace">2011 Cayman 2.9 PDK, white</font></span></div><di=
v><span style=3D"color:rgb(0,0,0);background-color:rgb(255,255,255)"><font =
face=3D"monospace">2021 Ford F-150 3500cc twin turbo, white</font></span></=
div><div><span style=3D"background-color:rgb(255,255,255)"><font face=3D"mo=
nospace">1991 Caterham 1700 Super Sprint, not white</font><br style=3D"colo=
r:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida grande&quot;,ar=
ial,helvetica,sans-serif"><a href=3D"http://www.mnautox.com/"; style=3D"colo=
r:rgb(0,24,57);font-family:verdana,geneva,lucida,&quot;lucida grande&quot;,=
arial,helvetica,sans-serif" target=3D"_blank">www.mnautox.com<br></a></span=
><br></div></div></div></div></div></div></div>
</div>

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