Draining battery to 1%?

Discussion in 'iPad General Discussions' started by graywolf, May 14, 2011.

  1. graywolf
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    graywolf iPad Super Guru

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    Do you think it matters if I run the battery to 1% instead of running it until it completely dies?
    Just for the monthly battery calibration.
  2. SweetPoison
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    SweetPoison iPad Legend

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    My iPad only goes to 2% then kicks off ~

    Oh! I thought you were answering the OP but you ARE the OP! I am trying to do 500 things at the same time! Grayson ~ does your iPad make it to 1%?
  3. Mountainbikermark
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    Mountainbikermark iPad Addict

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    2% is a safety factor. Though the battery isn't dead dead it shuts off at around that point. Your battery calibration could be off by the 1%-2% difference.
    When it says 100% full it's not really 100% ,more like 96-98% so that is why sometimes we see after it drops below 100% it seems to drop to around 90%- 95% faster than it did from 100% to 99%. It's the calibration becoming more accurate.


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    Last edited: May 14, 2011
  4. Hayles66
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    Hayles66 iPad Expert

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    Mine switches off at 1%

    from Somerset UK on my iPad using IPF app
  5. DontUnderstandMyIpad
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    DontUnderstandMyIpad iPad Guru

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    1% is close enough for calibration purposes.

    Btw. the iPad actualize shuts of the moment it reaches 0%. Multiple personal tests have shown that once the battery drops from 2% to 1%, the battery still lasts 5-6min at 1%, before the iPad shuts off.
    Last edited: May 14, 2011
  6. Hayles66
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    Hayles66 iPad Expert

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    Oh, yeah, it does go on 1% for a while, but I've never timed it.

    from Somerset UK on my iPad using IPF app
  7. graywolf
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    graywolf iPad Super Guru

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    It does! :)

    Yours doesn't?
  8. SweetPoison
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    SweetPoison iPad Legend

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    Didn't I say 2% and then kicks off? Did you ever go to your room?
  9. graywolf
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    graywolf iPad Super Guru

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    I did. Then I left.
  10. sjleworthy
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    sjleworthy Super Moderator Staff Member

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    I've run mine down to zero a couple if times.

    Battery calibration? What's that? I really don't think running your battery down/to zero makes a hill of beans difference. But once a month? What a faff. Just use it as you go :)
  11. Hayles66
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    Hayles66 iPad Expert

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    I'm sure that Tim said this is iTunes own recommendation! I could be wrong.

    from Somerset UK on my iPad using IPF app
  12. SweetPoison
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    SweetPoison iPad Legend

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    Apple's. Not iTunes. In the manual.
  13. graywolf
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    graywolf iPad Super Guru

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    Apple recommends running it all the way down once a month to keep the battery meter calibrated.
    This in no way increases battery life though.
  14. sjleworthy
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    sjleworthy Super Moderator Staff Member

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    The mighty Timser?

    /me bows down to the north :)
  15. Hayles66
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    Hayles66 iPad Expert

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    sorry, I meant Apple, that's what comes from watching Eurovision and typing on the iPad! Oops.

    from Somerset UK on my iPad using IPF app
  16. SweetPoison
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    SweetPoison iPad Legend

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    Too funny. Tim would never say iTunes.;)
  17. SusanR
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    SusanR iPF Novice

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    I've never let mine get below 30%, is this damaging or harmful?
  18. graywolf
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    graywolf iPad Super Guru

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    That is actually better for the battery. Lithium ion polymer will last longer if you don't drain and recharge.
    Contrary to older batteries.
  19. SweetPoison
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    SweetPoison iPad Legend

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    I would not worry about it ~ Apple recommends in their manual a once a month drain ~ but I always forget.
  20. King.Khoja
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    Is it a bad thing if i let the ipad die out past 1% than charge it?

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