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Re: Dead battery after storage on T400s

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bp@www.zefox.net wrote:
> It arrived more than a month early, which seemed odd. It seems to fit with
> a little fiddling, though the plastic case is very slightly warped.
> 
> I settled on a test cycle of simply letting the machine idle without
> sleeping, using the "best battery life" performance setting. The new battery,
> after the suggested three charge/discharge cycles, yielded around 4.5 hours
> till self-shutdown.
> 
> When I repeated the test with the original battery, the run time seemed to
> be around 4 hours. The longest run times reported on-line were maybe five
> hours, though it's not clear what the test settings for power were.
> 
> Does anybody have a sense whether this is reasonable? I'm told the original
> battery dates from the purchase time, around 2009. I think it was taken out
> of service around 2020 and given to me in 2024, so the oem battery is about
> fifteen years old. I'm very surpised the old battery works so well, if in
> fact the as-new runtime was five hours..
> 
> Thanks for reading, and any sanity checking 8-)

I'd say the main inconsistency here is that in your previous post
you said you tested discharging the old battery and it had a
"little over one hour of endurance". Yet now it lasts four hours?!

A difference in run time like that makes no sense to me unless
you were working it hard or had power-hungry devices plugged into
it during the first test. I guess Windows could also have been
doing an upgrade in the background before, if you didn't disable
that during the test (or, since it's Windows, if it ignored you and
did something anyway).

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Dead battery after storage on T400s bp@www.zefox.net - 2025-01-14 01:50 +0000
  Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-14 18:11 +0000
    Re: Dead battery after storage on T400s not@telling.you.invalid (Computer Nerd Kev) - 2025-01-15 06:40 +1000
      Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-15 17:25 +0000
        Re: Dead battery after storage on T400s Adrian Caspersz <email@here.invalid> - 2025-01-15 21:02 +0000
          Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-15 22:03 +0000
        Re: Dead battery after storage on T400s not@telling.you.invalid (Computer Nerd Kev) - 2025-01-16 07:44 +1000
          Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-15 22:45 +0000
            Re: Dead battery after storage on T400s Computer Nerd Kev <not@telling.you.invalid> - 2025-01-16 13:47 +1000
              Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-16 16:10 +0000
                Re: Dead battery after storage on T400s Computer Nerd Kev <not@telling.you.invalid> - 2025-01-17 12:53 +1000
                Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-01-17 04:26 +0000
                Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-02-07 19:05 +0000
                Re: Dead battery after storage on T400s not@telling.you.invalid (Computer Nerd Kev) - 2025-02-08 07:49 +1000
                Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-02-08 20:33 +0000
                Re: Dead battery after storage on T400s not@telling.you.invalid (Computer Nerd Kev) - 2025-02-09 09:54 +1000
                Re: Dead battery after storage on T400s bp@www.zefox.net - 2025-02-09 01:44 +0000

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