MacBook battery 97-99%

Discussion in 'MacBook' started by olly666, Feb 10, 2009.

  1. olly666 macrumors regular

    olly666

    Joined:
    Dec 27, 2008
    Location:
    Seattle, WA
    #1
    Even when I turn my computer off and plugged into the power supply, the battery never seems to go above 97-99%. I only got it a week ago, what gives?

    I even calibrated the battery as suggested on apple's website...
     
  2. petemwah macrumors regular

    Joined:
    Feb 10, 2009
    #2
    try calibrating the battery again...

    this happened to me a couple of weeks ago and is perfectly usual, re-calibrating sorted it out a treat. maybe it just needed a couple of calibrations?

    also you might want to see this thread which explains your issue.
     
  3. arthursiew macrumors 6502

    arthursiew

    Joined:
    Sep 13, 2008
    Location:
    SF Bay Area
    #3
    It's kinda normal. These batteries are kind of funky. My battery always does that, but after letting it cycle through several times... it's back to normal.
     
  4. olly666 thread starter macrumors regular

    olly666

    Joined:
    Dec 27, 2008
    Location:
    Seattle, WA
  5. Samuriajackon macrumors 6502

    Samuriajackon

    Joined:
    Feb 9, 2009
    #5
    Tag on question. If i wanted to run on Power only and remove the battery is it best to store the battery full or empty?
     
  6. Chase R macrumors 65816

    Chase R

    Joined:
    May 8, 2008
    Location:
    PDX
    #6
    From what I've heard this isn't the greatest idea... Someone correct me if I'm wrong here.
     
  7. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    It's perfectly normal for the battery health and maximum charge to fluctuate up and down over time. You only need to be concerned if there's a significant drop, like below 80%. Calibrate at least once a month, as Apple recommends and you should be fine.
    Not recommended to run without the battery. Your processor will get throttled down.
     
  8. Neil321 macrumors 68040

    Neil321

    Joined:
    Nov 6, 2007
    Location:
    Britain, Avatar Created By Bartelby
    #8
    Nope, as your correct it'll throttle the processor
     
  9. kastenbrust macrumors 68030

    kastenbrust

    Joined:
    Dec 26, 2008
    Location:
    North Korea
    #9
    The battery also dies quicker left outside the computer than inside.

    The only way to properly preserve it is to keep it on 40% charge inside the fridge, im not actually joking either check the Apple support site.
     
  10. 99MustangGTman macrumors 6502

    Joined:
    Dec 3, 2008
    Location:
    Germantown MD/ Columbus OH
    #10
    Battery doesn't charge above 92% or so, let it cycle through and then re-charge and it should see 100%
     

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