Re: [Thinkpad] What's the actual full capacity of your battery?

How can one post to the list with a "no spam" address.
Not expecting any reply I guess
----- Original Message -----
From: "No Spam" <nospamplease@ifrance.com>
To: <upilogue@mailup.net>
Cc: "ThinkPad Mailing List" <thinkpad@stderr.org>
Sent: Friday, January 02, 2004 1:32 PM
Subject: Re: [Thinkpad] What's the actual full capacity of your battery?

> Hi Neil,
>
> "upilogue@mailup.net" wrote:
> >
> > I'm just wondering if the degradation of full-capacity on my battery is
> > typical. It's the 6-cell T40 battery. The design capacity 47.52 Wh. The
> > actual full charge capacity has diminished to 41.53 Wh after only 31
> > charge cycles. What's yours like?
> >
> > Also, with the 1-yr warranty, what's people experience about getting
> > replacement from IBM - what constitutes a replacement-needed situation?
> > What if the full charge capacity goes below a certain low level - would
> > they just consider that as typical wear? Not that I'm going to ask for
> > replacement now though.
>
> I managed to have my T22's battery replaced under warranty by IBM. After
> less than 6 months of use, it lasted no more than one hour and a half
> and the IBM product features page showed it lasted around 3 hours.
>
> I found, reading the IBM site, that they used BatteryMark 4.01 to
> calculate the announced 3 hours duration.
>
> So I was lucky enough to find it on the Internet and downloaded the same
> version of the tool (~ 40 MB) and used it to measure my battery
> duration. When it proved to be half the advertised time after less than
> six months of use, I called them with the results and they changed it (I
> received one new battery the day after my phone call and they took back
> the "old" one...8-))
>
> I have now the new battery for about 9 months. It's charge's counter is
> 50 (I mostly use the T22 plugged on the main, with no battery in it.).
> The design capacity is 38.88 Wh and the information shows that the
> actual capacity is 38.43, so quite no difference!
>
> Hope it helps!
>
> Regards,
> Bernard
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Received on Fri Jan 2 13:53:40 2004