[ltp] X240: Sudden battery death

Jochen Spieker linux-thinkpad@linux-thinkpad.org
Wed, 9 Dec 2015 15:53:22 +0100


--z4+8/lEcDcG5Ke9S
Content-Type: text/plain; charset=iso-8859-15
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Christoph Schmees:
> Am 07.12.2015 um 21:48 schrieb Jochen Spieker:
>>=20
>> http://well-adjusted.de/~jrspieker/battery-death/
>>=20
>> What you can see is that the battery health appeared to be pretty stable
>> over the last 12 months. But in less than two weeks, the remaining
>> capacity ("last full" from /sys/class/power_supply/BAT1/energy_full)
>> dropped from 94% to 18% in three steps!
>> ...
>=20
> typical symptom of a dead cell. Do you have warranty? Otheriwse give
> the battery to refurbishment or just dump it. And get a new one.

Thanks for your assessment.

Since the 6-cell battery is surprisingly cheap on Amazon (=A467,
apparently genuine from Lenovo) I will probably just get a new one.

I did buy the extra 36 months warranty for the internal battery, but I
think the external one is only covered for 12 months. It's already down
to 73% of its design capacity so I guess I will get that replaced in the
upcoming months as well. Does anybody know the threshold for replacement
that Lenovo applies? I cannot find this information in the terms of
service I received after registering.

J.
--=20
It is not in my power to change anything.
[Agree]   [Disagree]
                 <http://www.slowlydownward.com/NODATA/data_enter2.html>

--z4+8/lEcDcG5Ke9S
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=U3NI
-----END PGP SIGNATURE-----

--z4+8/lEcDcG5Ke9S--