[PLUG] technical circuit diagnosis

wes plug at the-wes.com
Thu Jun 4 19:34:07 UTC 2009


I wouldn't assume that based on just unplugging the power right away. I
would let it try to charge for a few hours before pulling the plug.

Even a good battery will discharge sitting on the shelf.

-wes

On Thu, Jun 4, 2009 at 10:51 AM, Eitan Tsur <eitan.tsur at gmail.com> wrote:

> OK, so there's DEFINITELY something wrong with the laptop side of the
> equation.  Tried the old battery, which the laptop still ran on originally,
> (and it was stored charged), and upon installation, turn it on, plugged
> into
> mains power.  Unplug mains power, laptop shuts off immediately.  Thing is,
> it's a Sager 2200T.  Can one still get parts (IE: a motherboard) for these?
>
> On Wed, Jun 3, 2009 at 11:25 PM, Eitan Tsur <eitan.tsur at gmail.com> wrote:
>
> > I bought the replacement pack from an OEM supplier, build quality was
> > identical if not better, capacity was almost 1 Ah better, (measureable,
> not
> > just that they tweaked the sticker), etc...
> >
> >
> > On Wed, Jun 3, 2009 at 7:55 PM, m0gely <m0gely at gmail.com> wrote:
> >
> >> wes wrote:
> >> > You are correct, those are very interesting points. If your
> >> understanding of
> >> > the connector is correct, you should be able to recondition the cells
> >> > individually. Or, if you can use a tester to find the bad one, just
> >> > recondition that one.
> >> >
> >> > If it's less than a year old, I would suspect a manufacturing defect
> in
> >> the
> >> > battery. Wouldn't be the first time...
> >>
> >> If you have a laptop battery that holds a charge at the 10 year mark you
> >> are by far the exception. Almost any laptop I've ever seen at 4 to 5
> >> years, if the battery works at all it's usually around 10 to 15 minutes
> >> of run time.
> >>
> >> And on another note, eBay is a Chinese flea market for laptop batteries,
> >> no matter how genuine the auction says it is. If you get an actual
> >> genuine battery from eBay you got very lucky. Check this out:
> >>
> >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260370980796
> >>
> >> FAKE! I know, I got one. And what's that, 9 some odd pages of images and
> >> text convincing you otherwise. See how the battery says made in China in
> >> two spots yet the country code says KR? Or how about the Rev A00 not
> >> matching the white label? Capitalized mAH, should be mAh. And yet the
> >> battery I got, which said made in Japan, was one digit off on the serial
> >> number from the Chinese version in the picture, *one digit off in the
> >> middle*! The manufacturing quality sucked in comparison to my original
> >> too.
> >>
> >> </rant>
> >>
> >> --
> >> m0gely
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> >>
> >
> >
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