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    Battery calibration option in BIOS NC10

    Discussion in 'Samsung' started by Phil, Dec 4, 2008.

  1. Phil

    Phil Retired

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    Phil, Dec 4, 2008
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  2. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

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    Hi.

    Unless you are having major problems with you battery runtime estimate, It is best not to calibrate your battery as it will only cause more wear.

    Li-ion battery do not like to be fully discharged, try and keep you discharges to above 40% if you can.

    Regards

    John.
     
    Tinderbox (UK), Dec 4, 2008
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  3. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Most notebooks have this facility in the BIOS.

    I would save the calibration for when there is significant wear.

    John
     
    John Ratsey, Dec 4, 2008
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  4. Tinderbox (UK)

    Tinderbox (UK) BAKED BEAN KING

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    Hi.

    The li-ion cell producers say that there capacity could be off by up to 10% , but the data programmed in to the battery pack assumes that the cells are 100%

    So if you check your battery wear when you receive your new battery it may say 0% wear , but only after you re-calibrate your battery will you find out it`s true wear level.

    Regards

    John.
     
    Tinderbox (UK), Dec 4, 2008
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  5. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    I tried using the calibration on one of my previous Samsung notebooks which the wear suddenly jumped to 15%. The calibration did nothing to recover the lost capacity. I then consulted Samsung support who suggested the deep discharge method. A couple of full charge full discharge cycles (down to 0) got the wear back into single figures.

    John

    PS: The calibration procedure is described on page 158 of the NC10 user guide.
     
    John Ratsey, Dec 4, 2008
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  6. Phil

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    After reading John's story I decided not to perform the calibration.
     
    Phil, Dec 5, 2008
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  7. Phil

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    Curiosity got the better of me and I did it anyway. It didn't change anything though. Fully charged capacity is still 55500 mWh.
     
    Phil, Dec 6, 2008
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    My NC10 has a fully charged capacity of 56610mWH compared to the design capacity of 57720mWH. That's the same design capacity as my Dell E6400, but the E6400 manual states the capacity as 56WHr, so Dell have given themselves a little buffer against the battery not having the design capacity, even when new. Perhaps Samsung should do the same.

    John
     
    John Ratsey, Dec 7, 2008
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