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    Is Gauge function in Power Manager effective?

    Discussion in 'Lenovo' started by vimvq1987, Mar 28, 2010.

  1. vimvq1987

    vimvq1987 Notebook Consultant

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    My friend's T400 has 9-cell battery which full charge capacity was only 72Wh (wear 13%). I have Power Manager gauged it, and after 6 hours running, now the battery's full charge capacity is only ...69Wh.

    I don't know if I was mistaken, or gauge reset function was bad. Is there a chance for me to recover the battery?
     
    vimvq1987, Mar 28, 2010
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  2. MidnightSun

    MidnightSun Emodicon

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    The Power Manager reported values are not necessarily perfect. To recalibrate the battery, you can drain your battery to 0% (easiest way to do so is to leave it in the BIOS) and then charge it up again, however, doing so will incur a bit of wear on your battery.

    My advice is to forget about the 3Wh difference and just use your Thinkpad. Just make sure you're practicing good battery health-preserving procedure (ie: don't constantly charge up to 100%, avoid repeatedly draining the battery to 0%, etc).
     
    MidnightSun, Mar 28, 2010
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