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    Battery wear level

    Discussion in 'Asus' started by Eclipse_lite, Dec 14, 2014.

  1. Eclipse_lite

    Eclipse_lite Notebook Guru

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    Hey!
    I have ux303ln and looks like i messed up my buttery by calibrating it.
    After I have discharged the buttery to 3% and fully charged it 3 times(3 cycles) the wear level was 2.3%. however then i had to use laptop away from a socket and after the battery was discharged to 5% and recharged one more time, the wear level jumped to 6%!...
    Is such battery behavior normal?
    The laptop has been in use for around 2 month and 80% of the time is plugged.
     
  2. Eclipse_lite

    Eclipse_lite Notebook Guru

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    now its even 6.9%! in couple days.. whats going on?
     
  3. Prostar Computer

    Prostar Computer Company Representative

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    You don't need to do a full charge + discharge cycle three times to calibrate it; once should be enough. Three times can certainly put excessive wear on your battery. Also, a full discharge entails getting it down to 0% (I understand it's a little bit of a hassle to get it down that low).

    6.9% is either incorrect reporting or a quickly dying (possibly defective?) battery. :confused:
     
  4. coercitiv

    coercitiv Notebook Consultant

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    Stop this calibrating nonsense. The battery wear indicator is bound to slowly increase in time, but it's also bound to fluctuate, because it is only an approximation. The system will calibrate itself through normal use as well, so there really is no point in forcing calibration.

    In fact fully discharging is one of the most stressful events for a modern laptop battery, especially if you try some tricks to bring it down to effective 0%. Most people who obsess with battery "calibration" are likely to lose more battery capacity through wear than they win through "calibration".

    Use your laptop normally: both you and your battery will feel better.
     
  5. Asus_USA

    Asus_USA Company Representative

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    Eclipse_lite - In doing a proper battery calibration here are the steps we would recommend:

    1. Allow the battery to be fully drained first.
    2. Then remove the battery (if it can be removed easily).
    3. Then press and hold the power button for 15 seconds to fully drain the power coil.
    4. Reinsert the battery in the notebook and connect the A/C power adapter and allow the battery to be fully charged to 100%.

    Please let us know if you need any further assistance you can contact us directly at [email protected].

    Thank you.
     
  6. Eclipse_lite

    Eclipse_lite Notebook Guru

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    it's 8.06 now =( with total capacity of 46,065 mWh and sometimes it jumps to 10%!
    should i b worried? the most i can get ouf of the laptop is 3-4 hours... with 60% screen brightness while web surfing.
     
  7. Eclipse_lite

    Eclipse_lite Notebook Guru

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    10.70% already =(
     
  8. Prostar Computer

    Prostar Computer Company Representative

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    As long as you're under warranty, look into getting it replaced. Light use should get you up to 9-ish hours, according to notebookcheck.net.
     
  9. EVGAFTW

    EVGAFTW Notebook Geek

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    My UX303LN is about 2 weeks old so really it isn't old enough yet to tell how the battery actually is. On first boot the wear was about 6.5% however after 2 full cycles (calibration) it went down to ~0.7% and has been around that since.

    I also have a Asus Vivotab Smart which is around 9 months old and is regularly used. The wear on that is about 7% so yes I think your battery may be defective.