Battery or AC Power?

Discussion in 'MacBook Air' started by Guv280984, Mar 19, 2008.

  1. Guv280984 macrumors member

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    Mar 9, 2008
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    Norn Iron
    #1
    Hey guys,

    Was just wondering what the best way is to preserve the battery? Is it best to keep it plugged in all the time or fully charge it then run it down each time?

    Thanks for your input
     
  2. Eidorian macrumors Penryn

    Eidorian

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    Indianapolis
  3. TEG macrumors 604

    TEG

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  4. FloridaBSD macrumors newbie

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    Mar 18, 2008
    Location:
    Broward County, FL
    #4
    IMHO, to procure optimal battery life you should run your battery down to zero at least twice a month and charge it up to full power , this will ensure maximum sustainable battery life and also minimize the need to disposal of the battery thus reducing hazardous materials waste in our land fills, thus ensuring that we pass on a health planet to generations to come.
     
  5. Guv280984 thread starter macrumors member

    Joined:
    Mar 9, 2008
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    Norn Iron
    #5
    Hey,

    Thanks for the replies.

    Another question, i try and keep it plugged in most of the time but when i'm out and about for a while i use it on battery. Is it best to plug it in again when i get home or to let the battery run down then charge it up?

    When i get home it is at 60% or so and i would normally just stick it back on charge. Is this good for the battery or not?

    Thanks
     
  6. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
    Location:
    Indianapolis
    #6
    I always just keep it plugged in. I don't run the battery down or condition it.
     
  7. bov macrumors 6502

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    Aug 21, 2007
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    San Francisco
    #7
    whats the point of having a portable computer then? :confused:
     
  8. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
    Location:
    Indianapolis
    #8
    It's portable when it's not plugged in? I haven't conditioned my battery in the 5 months I've owned my MacBook and I don't repair my disk permissions ad nauseam. I only have 12 cycles on the battery and my MacBook works just fine.
     
  9. Guv280984 thread starter macrumors member

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    Mar 9, 2008
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    Norn Iron
    #9
    Guys, any suggestions on the above?
     
  10. aristobrat macrumors G4

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    Oct 14, 2005
    #10
    Here's what Apple says. Differs a bit from some folks in this thread, but for what it's worth:

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

     
  11. iJohnHenry macrumors P6

    iJohnHenry

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    #11
    As far as I am aware, batteries still have a propensity to develop a "memory", although they are working on this problem.

    When you get home, as suggested above, I would continue using the battery until the software calls for you to put it on recharge.

    Twice a month might be ok, but I would suggest getting into the habit of doing it on a specific day each week. Easier to remember that way.
     
  12. aristobrat macrumors G4

    Joined:
    Oct 14, 2005
    #12
    FWIW, the Lithium-ion batteries that Apple uses for most devices shouldn't have the memory issue.

    Wonder if the "digital memory" is the reason that Apple suggests discharging it fully once a month?

    http://batteryuniversity.com/parttwo-34.htm
     
  13. SodiumBenzoate macrumors regular

    Joined:
    Feb 10, 2008
    #13
    I think leaving it plugged in is probably fine.. My sister's nearly two-year-old MacBook has been plugged in most of the time she's had it, and it still has 96% battery health.
     
  14. ayeying macrumors 601

    ayeying

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    Dec 5, 2007
    Location:
    Yay Area, CA
    #14
    Use it however you like. I don't do any conditioning on my batteries from any of my laptops. They all lasted with at least 90% of their full battery life after 2 years.
     

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