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  1. #1
    Running Macbook off Adapter without battery.
    AnthonyJK's Avatar
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    Jan 19, 2007
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    San Jose, CA/Manoa,HI
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    219
    Specs:
    13' Black MacBook Core Duo 1.25 GB Ram 80GB HD
    Running Macbook off Adapter without battery.
    Is it ok to take your battery out and run your macbook off the adapter if you like to leave it plugged in alot. I just thought it might save some cycles on my battery

  2. #2
    Running Macbook off Adapter without battery.

    Member Since
    Jan 29, 2007
    Posts
    1
    I always do this with my "OLD LAPTOP PC" but im thinking of doing it with my new macbook.

    Any suggestions?

  3. #3
    Registered User
    Member Since
    Dec 03, 2006
    Location
    UK
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    709
    Specs:
    iMac 2.93C2D 4GB
    Should be ok, just make sure you don't knock the power cable out and lose all that important work...

  4. #4
    Running Macbook off Adapter without battery.
    AnthonyJK's Avatar
    Member Since
    Jan 19, 2007
    Location
    San Jose, CA/Manoa,HI
    Posts
    219
    Specs:
    13' Black MacBook Core Duo 1.25 GB Ram 80GB HD
    I've been running it off the adapter since my first post and it seems to be running fine

  5. #5
    Running Macbook off Adapter without battery.
    kgeier82's Avatar
    Member Since
    Dec 01, 2006
    Posts
    1,495
    Specs:
    MBP 2.4/2GB/200HD/256 8600gt
    juust remember. the new apples clock down the cpu if u take the battery out and run off AC.

    if u dont believe me, run coreduotemp, and watch it drop
    2.4ghz Unibody | Hitachi 320GB 7200 | 256MB 9600gt

  6. #6
    Running Macbook off Adapter without battery.

    Member Since
    Oct 28, 2006
    Posts
    31
    yeah, many do run their macbooks from the ac adapter without the battery. i personally do run my macbook from the ac adapter and have the battery installed. once the battery is charged it doesn't chage further, it just stops. but the question i keep asking myself is when you remove the battery. there is no rubber sole on the right hand corner of the macbook to hold it up so won't the mactop always be bobbing around?
    thanks in advance

  7. #7
    Running Macbook off Adapter without battery.
    mikeyman's Avatar
    Member Since
    Feb 01, 2007
    Posts
    751
    Specs:
    13" macbook C2D; 24" Imac, 8GB Iphone
    i run my macbook of the ac with the battery installed
    dont think it will do any harm as i take it off about once or twice a week

  8. #8
    Running Macbook off Adapter without battery.
    AnthonyJK's Avatar
    Member Since
    Jan 19, 2007
    Location
    San Jose, CA/Manoa,HI
    Posts
    219
    Specs:
    13' Black MacBook Core Duo 1.25 GB Ram 80GB HD
    I've always heard that if you leave the charger in after its charged it wears down your battery. I know this was the case for my previous laptop. It was always plugged in and after about a year of doing this its charge without the ac adapter lasted about an hour at most.

  9. #9
    Running Macbook off Adapter without battery.
    plusfortyfour's Avatar
    Member Since
    Dec 15, 2006
    Location
    Dartmouth, NS, Canada
    Posts
    179
    Specs:
    White Macbook Core 2 Duo 2.0 GHz/1GB RAM/250 GB HDD
    I am running off the adapter now. I am just very careful.

  10. #10
    Running Macbook off Adapter without battery.
    kgeier82's Avatar
    Member Since
    Dec 01, 2006
    Posts
    1,495
    Specs:
    MBP 2.4/2GB/200HD/256 8600gt
    let me reiterate...

    if you take your battery out while on AC your performance specs will be cut in half.

    if this is worth it to you, which i dont know why it would be, remove your battery.

    otherwise, keep it in, let the laptop run the way/speed it should.
    2.4ghz Unibody | Hitachi 320GB 7200 | 256MB 9600gt

  11. #11
    Running Macbook off Adapter without battery.
    AnthonyJK's Avatar
    Member Since
    Jan 19, 2007
    Location
    San Jose, CA/Manoa,HI
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    219
    Specs:
    13' Black MacBook Core Duo 1.25 GB Ram 80GB HD
    Quote Originally Posted by .:ren:. View Post
    once the battery is charged it doesn't chage further, it just stops.
    Is this true, and if it is does that mean it won't wear down your battery if you leave it plugged in all the time?

  12. #12
    Running Macbook off Adapter without battery.
    kgeier82's Avatar
    Member Since
    Dec 01, 2006
    Posts
    1,495
    Specs:
    MBP 2.4/2GB/200HD/256 8600gt
    yes thats true.

    leave your battery in at all times, thats what it was meant todo.
    2.4ghz Unibody | Hitachi 320GB 7200 | 256MB 9600gt

  13. #13
    Running Macbook off Adapter without battery.
    walmartconnect's Avatar
    Member Since
    Oct 13, 2006
    Location
    Blacksburg, VA
    Posts
    724
    Specs:
    13'' Macbook w/ 2Ghz Core Duo, 2GB DDR2, 250GB HD, 10.5.4. iPod Touch.
    I am not sure whether or not the urban legend of leaving the battery in and charged all of the time will cause it to degrade is true or not. I would think that will today's more efficient technologies that even if this were true, the amount of degradation would be negligible.

    Personally I would think that even though a battery may show green and be charged, it still has some kind of juice running through it and then into the laptop. How else could one account for the great redundancy of the macbook's (and most laptop systems) ability to have the plug pulled and continue working without so much as a hiccup?

    All speculation though, I am by no means an expert

  14. #14
    Running Macbook off Adapter without battery.
    AnthonyJK's Avatar
    Member Since
    Jan 19, 2007
    Location
    San Jose, CA/Manoa,HI
    Posts
    219
    Specs:
    13' Black MacBook Core Duo 1.25 GB Ram 80GB HD
    the part of my question that im worried about still hasn't been answered does it wear down the battery when you leave it charging all the time. Like I said it wore down my old laptops battery.

  15. #15
    Running Macbook off Adapter without battery.
    walmartconnect's Avatar
    Member Since
    Oct 13, 2006
    Location
    Blacksburg, VA
    Posts
    724
    Specs:
    13'' Macbook w/ 2Ghz Core Duo, 2GB DDR2, 250GB HD, 10.5.4. iPod Touch.
    To continue:

    I believe that a battery is in a constant state of discharge no matter what. This occurs whether or not the battery is plugged in or by itself on a table. The addition of heat to a batter, however, increases that rate of discharge, thereby forcing you to charge it sooner than intended. With that in mind, perhaps it is killing the battery at a faster rate to be in the machine charged as opposed to by itself in a cool spot.

    EDIT: Sorry, simple answer:
    Yes, your battery is discharging constantly, to include while plugged in and "fully charged" in your macbook. Evidence suggests that your battery will wear down less quickly if away from the heat of your machine, but since it isn't a big story all over the computer world I doubt that it's that much of an issue. Your battery's life is primarily decided by how often you cycle it (use the charge, charge it back up).

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