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Thread: Battery issue

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    Battery issue

    Windows XP SP3

    I think this may be a software (driver, whatever) issue hence posting here.

    The battery in my Inspiron 6400 only lasts for about 30 minutes so I have bought a new one - brand new and Dell marked.

    I have been "conditioning" it - a full charge and discharge cycle - but when it is fully charged it shows 39 minutes life and indeed appears to run out after some 30 minutes.

    Could it be that the driver is corrupt, or what else should I investigate ?

    Many thanks

    Martin

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    That will be a motherboard problem - the battery charger and monitor is on the motherboard.
    Either keep the mains on or get a new laptop.

    cheers, Paul

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    HWMonitor will show you how much either battery is degraded which can confirm whether it's the batteries or likely to be a mobo problem.

    If it's the driver, you can uninstall it in Device Manager then either click on Action/Scan for hardware changes or just reboot for it to reinstate - but I always create a restore point first before uninstalling anything from Device Manager.

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    Thanks - I will give that a try

    Update: very interesting. The taskbar battery icon has been at 100% remaining (charging) for some time now. The HW Monitor shows a Designed Capacity of 86,580 mWh, a Full Charge Capacity of 16,750 mWh and Current Capacity of 45,776 mWH. However the last of these is slowly but steadily rising.

    So - I'll leave it on charge and see what happens next. My suspicion is that it will charge up fully then maybe the inbuilt monitor may correct itself for the new battery.
    Last edited by MartinM; 2015-01-12 at 14:39. Reason: Update

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    When it gets to its full charge, the Wear Level may change but here are some tips on battery care http://batterycare.net/en/guide.html

    Have you stuck the old battery in yet to check its Wear Level ?

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    Well the new battery is fine, thank you very much for the clues the monitor gave me: 4 1/2 hours life now.

    I'll check the old battery tomorrow.

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    That's great news and thanks for the update.

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    Update: the old battery peaks at 19% of its full capacity, so it certainly was "dead".

    Curiously, the taskbar meter is now very confused - it says 100% when the new battery is about 20% charged. It doesn't really matter but I was wondering if there's a way to reset it ?

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    Quote Originally Posted by MartinM View Post
    Update: the old battery peaks at 19% of its full capacity, so it certainly was "dead".

    Curiously, the taskbar meter is now very confused - it says 100% when the new battery is about 20% charged. It doesn't really matter but I was wondering if there's a way to reset it ?
    There's a section in that article I'd linked in my Post #5 on how to recalibrate the gauge and while it looks time consuming, it may be a necessity for your laptop.

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    Done, worked, thanks

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    Glad that worked out for you and thanks for the update.

    If you're happy then you can use the Thread Tools dropdown to Mark Thread as Solved.

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