Actually, it's the 100% charge state that is bad for LiIon. But a
charge/drain cycle will likely wear the battery out even faster - LiIon
batteries wear model is based on usage time. A 90% charge is ideal for
long term storage - or for someone who leaves the laptop plugged into AC
power most of the time.
As far as software controls, I'm not familiar - but one thing that works
in any OS is to simply remove the battery when on AC power.
-Blake
-------- Original Message --------
Subject: Battery condition tools CentOS/Dell
From: Kwan Lowe <kwan.lowe@xxxxxxxxx>
To: centos@xxxxxxxxxx
Date: Wednesday, August 05, 2009 8:43:36 AM
> Hello all:
> Does anyone know of a tool/project that will allow me to read the
> battery condition (not the charge status) on a Dell laptop battery?
> Under XP there is a utility that warns that the battery is still
> holding a charge but that the battery is degraded and should be
> replaced.
>
> Also, not sure if this is possible, but I would like to control how
> the laptop charges the battery. I tend to have the laptop plugged in
> most of the time and this constant charging state is apparently very
> bad for battery lifetime. So a charge/drain cycle is supposedly
> better.
>
> Thanks,
> Kwan
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>
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