[ltp] ThinkPad Batteries

Daniel Castro linux-thinkpad@linux-thinkpad.org
Tue, 11 Nov 2008 08:50:58 +0000


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Yeah, loading tp_smapi wasn't as straight forward as expected, and I don't
wan't to mess with my kernel. I only have XP on vmware for a "just in case"
situation, that's not good to use the widows thinkpad utilities.I'm
surprised there is not straight forward and a "just works" solution for thi=
s
in thinkwiki... for now I just removed he battery until someone else comes
with another idea.

2008/11/11 Henrique de Moraes Holschuh <hmh@hmh.eng.br>

> On Mon, 10 Nov 2008, Joerg Bruehe wrote:
> > - If you are sure you don't need it, you might take it out and store it=
.
> >   Optimum storage conditions were described as partly charged (AFAIR,
> >   60% to 80%), dry, and cool (+5 to +10 =B0C).
>
> Actually, 40%.  The rest is correct.
>
> > - Avoid deep discharge (below 10% ?) and very high charge (above 90% ?)=
.
>
> Below 30% is good to avoid.  Keep it at 30%-80% if you don't really need
> much battery uptime.  20%-95% if you need moderate.  Only go to 5%-100% i=
f
> you *really* need it.
>
> >   Also, if using it, really discharge and don't re-charge immediately
> >   (don't let it cycle from 70% to 60%, but use it down to say 30% befor=
e
> >   charging again). The archive has tips how you can control the charge
> >   limits from software.
>
> The issue with constant charging is cell temperature, which rises quickly
> under charge.  On cool climates, it is probably best to charge more often=
.
>
> --
>  "One disk to rule them all, One disk to find them. One disk to bring
>  them all and in the darkness grind them. In the Land of Redmond
>  where the shadows lie." -- The Silicon Valley Tarot
>   Henrique Holschuh
> --
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
>
>


--=20
________________________

Daniel Castro, M.Sc.
+353 083-318-2058
dancasmo@gmail.com
castromd@tcd.ie
________________________

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Yeah, loading tp_smapi wasn&#39;t as straight forward as expected, and I do=
n&#39;t wan&#39;t to mess with my kernel. I only have XP on vmware for a &q=
uot;just in case&quot; situation, that&#39;s not good to use the widows thi=
nkpad utilities.<div>
I&#39;m surprised there is not straight forward and a &quot;just works&quot=
; solution for this in thinkwiki... for now I just removed he battery until=
 someone else comes with another idea.<br><br><div class=3D"gmail_quote">
2008/11/11 Henrique de Moraes Holschuh <span dir=3D"ltr">&lt;<a href=3D"mai=
lto:hmh@hmh.eng.br">hmh@hmh.eng.br</a>&gt;</span><br><blockquote class=3D"g=
mail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-l=
eft:1ex;">
<div class=3D"Ih2E3d">On Mon, 10 Nov 2008, Joerg Bruehe wrote:<br>
&gt; - If you are sure you don&#39;t need it, you might take it out and sto=
re it.<br>
&gt; &nbsp; Optimum storage conditions were described as partly charged (AF=
AIR,<br>
&gt; &nbsp; 60% to 80%), dry, and cool (+5 to +10 =B0C).<br>
<br>
</div>Actually, 40%. &nbsp;The rest is correct.<br>
<div class=3D"Ih2E3d"><br>
&gt; - Avoid deep discharge (below 10% ?) and very high charge (above 90% ?=
).<br>
<br>
</div>Below 30% is good to avoid. &nbsp;Keep it at 30%-80% if you don&#39;t=
 really need<br>
much battery uptime. &nbsp;20%-95% if you need moderate. &nbsp;Only go to 5=
%-100% if<br>
you *really* need it.<br>
<div class=3D"Ih2E3d"><br>
&gt; &nbsp; Also, if using it, really discharge and don&#39;t re-charge imm=
ediately<br>
&gt; &nbsp; (don&#39;t let it cycle from 70% to 60%, but use it down to say=
 30% before<br>
&gt; &nbsp; charging again). The archive has tips how you can control the c=
harge<br>
&gt; &nbsp; limits from software.<br>
<br>
</div>The issue with constant charging is cell temperature, which rises qui=
ckly<br>
under charge. &nbsp;On cool climates, it is probably best to charge more of=
ten.<br>
<br>
--<br>
 &nbsp;&quot;One disk to rule them all, One disk to find them. One disk to =
bring<br>
 &nbsp;them all and in the darkness grind them. In the Land of Redmond<br>
 &nbsp;where the shadows lie.&quot; -- The Silicon Valley Tarot<br>
<font color=3D"#888888"> &nbsp;Henrique Holschuh<br>
</font><div><div></div><div class=3D"Wj3C7c">--<br>
The linux-thinkpad mailing list home page is at:<br>
<a href=3D"http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpa=
d" target=3D"_blank">http://mailman.linux-thinkpad.org/mailman/listinfo/lin=
ux-thinkpad</a><br>
<br>
</div></div></blockquote></div><br><br clear=3D"all"><br>-- <br>___________=
_____________<br><br>Daniel Castro, M.Sc.<br>+353 083-318-2058<br><a href=
=3D"mailto:dancasmo@gmail.com">dancasmo@gmail.com</a><br><a href=3D"mailto:=
castromd@tcd.ie">castromd@tcd.ie</a><br>
________________________<br>
</div>

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