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Power icon recommends battery replacement

Discussion in 'Windows 7' started by IvanH, 2009/12/16.

  1. 2009/12/16
    IvanH

    IvanH Well-Known Member Thread Starter

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    A notebook was upgraded from Vista Home Premium to Windows 7. The Power icon on the system tray displayed a message recommending battery replacement. This is good. But, where else can I find the battery status / replacement recommendation besides the displayed message?
     
  2. 2009/12/16
    PeteC

    PeteC SuperGeek Staff

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    Searching through I could find no further reference to battery status except clicking on the battery icon in the notification area which shows Remaining Capacity and the option to change a Power Plan.
     

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  4. 2009/12/16
    IvanH

    IvanH Well-Known Member Thread Starter

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    The battery was replaced and the message displayed no more. The interesting point is that, the recommendation message was displayed even though the notebook was all the way AC connected.
     
  5. 2009/12/16
    PeteC

    PeteC SuperGeek Staff

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    Likely that Windows was monitoring the capacity of the battery, expecting it to reach 100% on charge?

    Certainly on one of my laptops (don't recall if t was on XP or the current OS Windows 7) the tray icon shows battery capacity when charging and the icon changes to AC power when the battery is fully charged. So windows 'knows' the state of the battery even on AC power.
     
  6. 2009/12/16
    Arie

    Arie Administrator Administrator Staff

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    Run powercfg /energy from a (admin) command prompt.

    When finished, copy C:\Windows\System32\energy-report.html to the desktop & open it with IE.

    Now look at the Battery information. It will show you Design Capacity & Last Full Charge.

    I did this test a few days before my battery failed, and the last full charge was around 25-30% less than its design capacity.
     
    Arie,
    #5

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