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Apple Macbook Battery

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  • 20-02-2009 8:30pm
    #1
    idPlease
    Closed Accounts Posts: 82 ✭✭


    Have had the apple macbook nearly a year and the battery is running down a little bit faster than it usually does lately. Anyone have any tips?


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    #2
    swingking
    Registered Users Posts: 4,258 ✭✭✭swingking


    I have my macbook a year now and I'm not noticing any difference in the battery life.

    Although this could be because I've always let the battery run down till it's empty before charging again till it's full.

    best suggestion is for you to do the same and see what happens.


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    #3
    demosuzki
    Closed Accounts Posts: 188 ✭✭demosuzki


    check out coconut battery

    http://www.coconut-flavour.com/coconutbattery/index.html


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    #4
    idPlease
    Closed Accounts Posts: 82 ✭✭idPlease


    I've done the same as yourself by running the battery down and then charging it up fully again but checked the battery cycles since i posted that and have realised that i have charged the battery 222 full cycles in just over a year. Now i'm not too worried (or don't think i should be) as its only after 300 (apparently) that a drop is noticeable.

    Thanks for the link to cocunut - will definately be using that!


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    #5
    idPlease
    Closed Accounts Posts: 82 ✭✭idPlease


    @demosuki - have you used cocunut before? I looked at the link and it seems straight forward enough i think


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    #6
    idPlease
    Closed Accounts Posts: 82 ✭✭idPlease


    :eek: followed the advise given by apple this is what happened: -

    ran down the battery to 0%.

    Left mac sleep on 0% from midnight until now, plugged power in as i am supposed to do.

    Mac restarts and battery is showing 53%?!?! WTF!

    I'm currently running it down again.

    How the hell did the battery regenerate itself so to speak??


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    #7
    Anan1
    Registered Users Posts: 22,818 ✭✭✭✭Anan1


    Maybe i'm misunderstanding, but did you leave it plugged in overnight?


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    #8
    luckat
    Closed Accounts Posts: 5,366 ✭✭✭luckat


    You can buy new batteries - handy to have a spare, in fact. Try posting in the Mac forum, btw (Tech/Operating Systems/Mac).


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    #9
    Dartz
    Registered Users Posts: 4,369 ✭✭✭Dartz


    They'll tell him to buy a new Macbook... it's their way. :P

    Batteries do degrade over time, even without charging cycles, Li batteries can lose 20% of their capacity within a year just by virtue of their construction. After about 10 months, I'm noticing a drop in my own laptop.

    Noticing it's like dropping a frog in boiling water, compared to putting him in cold water and slowly bringing it to the boil. In the first one, the frog realises there's something wrong and jumps out. In the second... boiled frogs-legs.


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    #10
    idPlease
    Closed Accounts Posts: 82 ✭✭idPlease


    Anan1 wrote: »
    Maybe i'm misunderstanding, but did you leave it plugged in overnight?

    Nope. It wasn't plugged in at all!! Thats what is weird.

    Thanks for all the advice i've posted a thread on the mac forum :) fingers crossed it all works out!!


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    #11
    astrofool
    Registered Users Posts: 16,466 ✭✭✭✭astrofool


    Li-ion batteries suffer no ill effects from being continuously charged, and in fact can be damaged by being discharged to 0%.

    http://www.apple.com/batteries/

    http://en.wikipedia.org/wiki/Lithium_ion_battery#Protection_circuits_required


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