Question about ac and battery

Discussion in 'MacBook' started by dlamin517, Nov 22, 2008.

  1. dlamin517 macrumors 6502

    Joined:
    Jul 12, 2008
    #1
    Will leaving my laptop plugged in all the time with the power cord and battery ruin my macbook or battery? i pretty much use my macbook as my desktop so it is always plugged in. is this bad?
     
  2. DeusInvictus7 macrumors 68020

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    Aug 13, 2008
    Location:
    Kitchener, Ontario
    #3
    ALL the time...yes

    just make sure you run it on battery like once or twice a month or something...that should keep it pretty healthy...
     
  3. Neil321 macrumors 68040

    Neil321

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    #4
    uhh of course it doesn't
     
  4. Tallest Skil macrumors P6

    Tallest Skil

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    Location:
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    #5
    Why do you think this?

    Oh, and taking out the battery and running on AC alone causes the newest MacBook and MacBook Pro to drop performance by around 40%.
     
  5. JG271 macrumors 6502a

    JG271

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  6. Mindflux macrumors 68000

    Mindflux

    Joined:
    Oct 20, 2007
    Location:
    Austin
    #7
    Leaving my old Dell Inspiron plugged in severely degraded my battery capacity over time. When it came time to actually use the battery (I had 2 in this particular model) they wouldn't last more than an hour.

    I believe DeusInvictus7 is correct stating it is not in the best interest of the battery to keep the notebook continually plugged in.
     
  7. DeusInvictus7 macrumors 68020

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    Aug 13, 2008
    Location:
    Kitchener, Ontario
    #8
    thats exactly what i was saying...i had two laptops before my macbook, and both of them were plugged in pretty much ALL the time (they were my uncle's and he used them in his office) and when he gave them to me, the batteries only had about 15 mins of charge on them...
     
  8. Neil321 macrumors 68040

    Neil321

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    #9
    Well I'm sorry but i believe this to be incorrect, my spare MBP ( a 06 model ) has 92% health at 72 cycles and is left on 24/7
     
  9. DeusInvictus7 macrumors 68020

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    Kitchener, Ontario
    #10
    well see you still have 242 cycles, so that means you still used the battery a reasonable amount, you didnt have it plugged into power the entire two years youve had it
     
  10. dlamin517 thread starter macrumors 6502

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    Jul 12, 2008
    #11
    how do you determine the health of your battery
     
  11. GoCubsGo macrumors Nehalem

    GoCubsGo

    Joined:
    Feb 19, 2005
    #12
    No it doesn't. I ran in clamshell mode for nearly 4 years constantly. I would occasionally unplug and use the notebook until it was fully drained to help calibrate it (once or twice a month). But otherwise, it was fine. Actually, I am still on my original battery. (the one given to me after the 2005 recall that is)

    iStat shows my battery on my 2005 Powerbook @ 91% Health, 63 Cycles, and 97% charge.
     
  12. Neil321 macrumors 68040

    Neil321

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    #13
    download istat pro
     
  13. VSMacOne macrumors 601

    VSMacOne

    Joined:
    Oct 18, 2008
    #14
    You have to give the battery a little bit of a work out :D AT least once a month seems to be the overall opinion in order to maximize its life span.
     
  14. DeusInvictus7 macrumors 68020

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    Kitchener, Ontario
    #15
    well see you kinda just made my point...you did unplug it and drain it once a month right? thats what i mean...
     
  15. Neil321 macrumors 68040

    Neil321

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    #16
    Ooops sorry typo
     

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