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    Weird battery problem

    Discussion in 'Dell' started by wkbag, Feb 20, 2009.

  1. wkbag

    wkbag Notebook Evangelist

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    Hi everyone,
    i have inspiron e1505:
    CPU = Intel core2due T7200 = 2G.Mhz / 4M. cash
    Hard = 120 G. WD (5400 RPM)
    Ram = 4 G. (667)
    VGA = Ati x1400 (256 ram)

    anyway my 16 months 6 cells battery has weird behavior:
    it charge normally when change to battery power, on 100% charge estimated time is about 17 hours. then after few minutes it suddenly drop to 7% and then 3% within few minutes.

    i know my battery is bad but why on earth windows (both xp and vista) report this unreal time.
    may be battery smart chip gone bad. (any idea)
     

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    wkbag, Feb 20, 2009
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  2. weirdo81622

    weirdo81622 Notebook Evangelist

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    Try a complete charge/discharge cycle (i.e. full to fully drained - not 1%, but 0) to reset the battery clock thing. Maybe that is just messed up?
     
    weirdo81622, Feb 20, 2009
    #2
  3. villenya

    villenya Newbie

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    I have the E1505 and I am having the same problem, with a new battery I just received yesterday. So either I have having really bad luck with batteries, or it is not the battery's problem. I read somewhere that it has something to do with badly coded ACPI.

    I also used NHC (notebook hardware control). I uninstalled that today to see if that was the cause of the problem.
     
    villenya, Feb 21, 2009
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  4. bobnova

    bobnova Notebook Consultant

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    With a full battery reboot and go into bios then unplug the power adapter and let it drain the battery to the point of shutting down. Then recharge, and do it again.

    Two or three of those should reset the batteries internal brain and give you more realistic estimates.
     
    bobnova, Feb 21, 2009
    #4