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Laptop Battery Unexpected Failure

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Arthur Shapiro

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Dec 16, 2005, 12:30:30 AM12/16/05
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My wife's C610 hadn't been used in a couple weeks, so I plugged it in
and powered it up to update the virus definitions. To my surprise, it
reported BIOS problems and directed me to the setup screen. Everything
appeared to be cleared - date, time, etc. - the usual symptom of a dead CMOS
battery.

I set the date/time and continued to power the machine up into Windows, which
proceeded without incident. Then I noticed the power LED on the case was
flashing multiple-green/yellow, multiple-green/yellow. The battery showed
zero percent charge, and after a few minutes this didn't improve. Swapping
the battery into the other slot didn't help.

So, can anyone deduce what has happened? It seems unlikely, although not
impossible, that both batteries failed simultaneously. Could a CMOS failure
affect the charging logic, meaning the main battery might really be good? In
the back of my mind is the possibility that the motherboard's charging
circuitry could have failed.

What should I replace, and in what order?

Informed guesses / anecdotal experience welcome.

Art

Art
Temporary usercode - to be deleted when spam starts. Use MyBrainHurts at this ISP to reach me

Jay B

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Dec 16, 2005, 1:28:30 AM12/16/05
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sounds to me like you left the system so long that not only is your cmos
battery dead, but the other batteries also completely drained to the
point of not being able to hold a charge.
you'll have to get a new battery most likely, -- get it from ebay.
the cmos battery may come back to life after a while.
if it acts up after a while of being plugged in, then that could be
changed also.

Tom Scales

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Dec 16, 2005, 8:27:45 AM12/16/05
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In two weeks? I've never seen a fully charged battery discharge that fast,
let alone go bad.

"Jay B" <ja...@audiman.net> wrote in message
news:j8tof.37304$L7....@fe12.lga...

Jay B

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Dec 16, 2005, 10:50:00 AM12/16/05
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the c610 is an old model, therefore, the battery is old. probably was
on the verge of losing its "retention".
i have c640's and same just happened to me. had one off for a short amt
of time, a little over a few months, and then
the battery was drained. i'd be very surprised if it was anything else.
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