battery calibration question thats NOT in the guide

Discussion in 'MacBook Pro' started by ptahkeem, May 5, 2010.

  1. ptahkeem macrumors member

    Apr 28, 2010
    Just got a 17" i5 mbp today. Anyhow, I was going through the battery calibration procedure and I'm currently at the "wait 5 hours minimum" part. My question is how can you tell if the battery has been completely utterly drained? If you hit the battery indicator button I get the 1 light that flashes. If the battery is completely drained will that not even come on or does the 1 flashing light count as the battery being "completely drained"?

    Yes, I know noob question BUT it's not in the guide! haha.
  2. Bill Gates macrumors 68020

    Bill Gates

    Jun 21, 2006
    It's completely drained when it automatically goes to sleep.
  3. lionheartednyhc macrumors 65816


    Jul 13, 2009
    Dude its IN the guide.
  4. ptahkeem thread starter macrumors member

    Apr 28, 2010
    seriously? here it is word for word. you tell me where, exactly, where the answer to my question is in this guide. thanks!

    "Intel notebooks, which includes all MacBooks and MacBook Pros, use the following method of calibration: [1]

    Plug in the power adapter and fully charge your laptop's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged.
    Allow the battery to rest in the fully charged state for at least two hours. You may use your computer during this time as long as the adapter is plugged in.
    Disconnect the power adapter with the computer still on and start running the computer off battery power. You may use your computer during this time. When your battery gets low, you will see the low battery warning dialogue on the screen.
    Continue to keep your computer on until it goes to sleep. Save all your work and close all applications when the battery gets very low, before the computer goes to sleep.
    Turn off the computer or allow it to sleep for five hours or more.
    Connect the power adapter and leave it connected until the battery is fully charged again.
    Battery calibration will help your computer display accurate information, and will give you an accurate picture of your battery's relative health and ability to hold a charge. If you believe that your battery is not holding a sufficient charge, perform a calibration first, and then reexamine your battery's health."
  5. ptahkeem thread starter macrumors member

    Apr 28, 2010
    i even made part of it BOLD for you so you can see where exactly you should start looking for my answer.
  6. rwd hero macrumors 6502

    Aug 6, 2008
    Baltimore, Maryland
    Im pretty sure it's saying that it takes the battery 5 hours (after the computer has wen't to sleep) to completely drain.
  7. scaredpoet macrumors 604


    Apr 6, 2007
    When the sleep light stops blinking, it's completely drained.
  8. Azathoth macrumors 6502a

    Sep 16, 2009
    I'll just add that it's not like the last percent or three is really going to make a difference...
  9. GGJstudios macrumors Westmere


    May 16, 2008
    No, it's not drained when it goes to sleep. It's not even drained when the sleep light goes out (indicating it's shut down). That's why Apple recommends waiting 5 or more hours. By that time, it's drained.
    Yes, it does make a difference. Draining it to 2-3% and recharging is NOT the same as calibrating.
  10. BlackZ macrumors member


    Mar 29, 2009
    Great I always was calibrating the wrong way.
    Lets do that tonight :)

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