Charging the battery for the first time

Discussion in 'MacBook' started by idifuplease, Sep 5, 2009.

  1. idifuplease macrumors newbie

    Joined:
    Sep 3, 2009
    #1
    i found this on apple's site

    http://support.apple.com/kb/HT1490

    and was wondering if i wanted to get the best out of my computers (going to arrive soon and cant wait!!!!!!!) should i do this the very first time ? charge it fully, unplug it until it "dies", leave it and let it completely die, then charge it fully again?

    some people have suggested that letting it completely die can actually have negative effect??
     
  2. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #2
    Doesn't really matter when you do it, so long as you do it.

    If you have a Unibody, they have a "smart battery" and won't over-discharge. The plastic models have some form of this too I believe given the instructions.

    No harm will come from calibrating the battery. It is true though that if you completely discharge a rechargeable battery it may not charge back up, but with a calibration you're not completely killing it, just getting very close.
     
  3. idifuplease thread starter macrumors newbie

    Joined:
    Sep 3, 2009
    #3
    oh k i never really understood that part about putting it to sleep. i thought that the battery did die eventually???

    so just let it get so low it automatically shuts off? (but doesnt die) leave it abit then recharge the battery to full??

    oh and has the majority come to a consensus about whether to take out the battery if its plugged or just leave it in (even if its full) if you have access to a plug?
     
  4. VSMacOne macrumors 601

    VSMacOne

    Joined:
    Oct 18, 2008
    #4
    You don't have to worry ab the sleep part. It'll do it automatically for you.
    All you have to do is follow the steps every 4-6 weeks, in order to keep your battery active. I've had my MB for a year almost, and I've kept it plugged in 90% of the time, with consistent battery use every couple of days. The results are in the attached picture... :)
    DO NOT take out your battery if you're using AC power. It will not over charge. On the other hand if you do take it out, there have been direct links to performance loss and even damage to your CPU.
    Most of all, don't be too nit-picky :) Just ENJOY THE CRAP out of your laptop. That's what it's for!
    IF you take DECENT care of it, it'll serve you well.
     

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  5. andalusia macrumors 68030

    andalusia

    Joined:
    Apr 10, 2009
    Location:
    Manchester, UK
    #5
    +1
     

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  6. jbuk macrumors regular

    Joined:
    Jun 8, 2009
    #6
    The CPU automatically underclocks to 1/2 speed when the battery is removed, if that's what you mean by performance loss.
     
  7. Vster macrumors 6502

    Joined:
    Jan 19, 2005
    Location:
    Celina, TX
    #7
    Seems to work the best. You don't want constantly drain the battery.
     
  8. ichiban06 macrumors regular

    Joined:
    Jun 20, 2009
    #8
    I have Insomniax enabled when draining the battery during calibration without it the Macbook would sleep when its low on battery but with Insomniax the Macbook can't sleep so it forces it to use the reserve power, at 0% battery I was able to play a movie for an extra 15min before it died completely.

    Using this method you don't really have to wait 5hrs before you recharge the battery.
     

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