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Calibrating the battery on an Apple MacBook / MacBook Pro

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Uploaded by on Sep 11, 2007

In this video I'll show you how to use a somewhat obscure tool from the command line in Mac OS X to help drain your battery faster when it comes time to calibrate the battery on your Apple laptop.

More info about dev null can be found at:
http://en.wikipedia.org/wiki/Dev/null

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Howto & Style

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  • Instructions on what he just said:

    1.power macbook until it is full then keep it plugged in for 2 hours.

    2.Unplug your macbook and drain the battery until it shuts off. Let the computer stay shutdown for atleast 6 hours.

    3 Plug your computer back in and let it recharge until it is totally full and leave it plugged in after it is full for atleast 1 hr.

    (IF YOU DONT WANT TO WATCH THIS WHOLE ENTIRE VIDEO WHICH IS BLABBING MOSTLY THEN COPY AND PASTE MY MESSAGE!!!!!!!!!!!!)

  • You can just use the machine normally until the battery dies, what is so bad about that?

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  • isn't this really stressfull on the machine?

  • @akbigdog yeh, play an online game...anything will drain the battery. Games utilise all power draining hardware.

  • can you link me the website plz? thanks

  • Also, rip a DVD using Handbrake while everything else is going on. That will use both the hard disk and the optical drive. :D

  • i would charge it fully overnight, then play minecraft and do the other things and that will take most 2 hrs, then leave it off so thats not too bad

  • you said 'kay to much!!!!!!

  • you did this on 9/11

  • How do you get the processor thing at the top of the screen

  • Why don't you just charge it overnight and then drain the battery the next day? Lol you don't have to do it all in one day!

  • k?

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