[ltp] Re: Thinkpad battery exhausted in less than a year?

[Marius Gedminas]

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On Mon, Nov 15, 2004 at 09:54:12PM +0000, Hamie wrote:
> Actually the battery DOES count cycles... I know Linux ACPI doesn't show=
=20
> it, but if you boot under Windoze, you do see the cycle count. They=20
> reckon about 300 cycles for Li-Ion batteries. And also about 3 years=20
> from new to nearly dead. (Li-Ion are pretty consistent).

I used to unplug the power as soon as the battery was fully charged and
plug it back when the battery was low.  After less than a year of this
use, the battery became good for only ~10 minutes.  The battery stats
utility on Windows showed 400 recharge cycles.  It was about 2 years
since the manufacturing date.

I bought a new battery and I'm now trying to keep the laptop plugged at
all times.

BTW the manual says that one cycle is counted when the battery is
discharged and recharged for at least 80% of its capacity.

Marius Gedminas
--=20
As far as we know, our computer has never had an undetected error.
                -- Weisert

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