Best way to drain the battery for MBP?

Discussion in 'MacBook Pro' started by goyan, Sep 12, 2008.

  1. goyan macrumors newbie

    goyan

    Joined:
    Sep 6, 2006
    #1
    Hi all,

    I am about to drain the battery for the MBP, the health of the battery is rather low right now. What is the best way to do it to make sure the battery is drained entirely? (or should I not do that?)

    Thanks!

    Goyan
     
  2. TEG macrumors 604

    TEG

    Joined:
    Jan 21, 2002
    Location:
    Langley, Washington
  3. juanster macrumors 68020

    juanster

    Joined:
    Mar 2, 2007
    Location:
    toronto
    #3
    put a dvd in full volume and full brightness i would think taht d do it in a coupel of hours.. and while you do this handbrake a movie too:D
     
  4. goyan thread starter macrumors newbie

    goyan

    Joined:
    Sep 6, 2006
    #4
    what about after the MBP's gone to sleep, there still will be a tidy bit of energy left in the battery..... should i get rid of those too? if so, any quick way of doing it?

    Thanks again!
     
  5. sycho macrumors 6502a

    sycho

    Joined:
    Oct 7, 2006
    #5
    I hope you are not doing that every time you use the battery.

    You may charge the battery in the MacBooks whenever you please, that batteries are stressed more when you drain them completely and charge them fully constantly.
     
  6. wgilles macrumors 6502

    wgilles

    Joined:
    Feb 21, 2008
    #6
    I'm pretty sure if you leave it in sleep mode, unplugged, for more than 5 hours it will drain the battery all the way
     
  7. ravenvii macrumors 604

    ravenvii

    Joined:
    Mar 17, 2004
    Location:
    Melenkurion Skyweir
    #7
    Yeah, leaving it unplugged for 5 hours after it goes to sleep will do it.
     
  8. azharc macrumors member

    Joined:
    Aug 2, 2008
    #9
    COD4 in boot camp works really well for me ;D
     
  9. e12a macrumors 68000

    e12a

    Joined:
    Oct 28, 2006
    #10
    type "yes" without quotes into a terminal window. Open up a few and do the same.
     
  10. eXan macrumors 601

    eXan

    Joined:
    Jan 10, 2005
    Location:
    Russia
    #11
    I assume you want to calibrate the battery, so here you go.

    Run some CPU-intensive process. This can be everything from running the "yes" command in the Terminal, encoding a huge video. When the machine will go to sleep, let it sleep. It will take about 5 hours for it to completely drain its charge and shut down.
     
  11. MowingDevil macrumors 68000

    MowingDevil

    Joined:
    Jul 30, 2008
    Location:
    Vancouver, BC & Sydney, NSW
    #12
    Oh, so to calibrate it...running it until it goes to sleep isn't good enough, you have to drain it completely to 0%?
     
  12. e12a macrumors 68000

    e12a

    Joined:
    Oct 28, 2006
    #13
    basically draining it till it sleeps from lack of power, yep. Then wait 5 hours without charging.
     
  13. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #14
    If you get rid of the last but of battery charge you may put the battery into what is called deep discharge which means either it will never be able to charge or it will take around 48 hours to start charging again. Both very very bad.
     

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