Battery Cycle Count: 70?

Discussion in 'MacBook Pro' started by SgtDuty, May 22, 2008.

  1. SgtDuty macrumors member

    Joined:
    Sep 15, 2007
    #1
    I just noticed this, is this bad enough to be eligible for replacement? Also it says that I have one processor, shouldn’t it be two?
     
  2. mkrishnan Moderator emeritus

    mkrishnan

    Joined:
    Jan 9, 2004
    Location:
    Grand Rapids, MI, USA
    #2
    The battery cycle count is how many full charge equivalents you've used the battery for. It's never grounds for warranty replacement. That would be like saying, "My receipt says my iMac is 200 days old. Do you think Apple will replace it?" ;)

    The issue is not how many cycles you have -- it's what percentage of the original capacity you have.
     
  3. SgtDuty thread starter macrumors member

    Joined:
    Sep 15, 2007
    #3
    99%, and I run out of battery in about an hour and a half.
     
  4. mkrishnan Moderator emeritus

    mkrishnan

    Joined:
    Jan 9, 2004
    Location:
    Grand Rapids, MI, USA
    #4
    What is the actual capacity readout in mAh? 99% sounds like, "No, nothing is wrong with your battery." 1.5 hours sounds like there is something wrong, unless you are running the computer excessively hard during that 1.5 hours.... like with both wireless radios on, full screen brightness, and lots and lots of DVD and HD activity, yes, perhaps you could push all the way down to 1.5 hours, but otherwise that's too low.

    But then your capacity should not list as 99%. Note that capacity isn't the current charge level (like when it says the battery is 99% charged up at the top of the screen). Capacity is how much charge the battery actually holds. You can find it out using the ioreg command at the terminal or using something like Coconut battery or the system profiler.
     
  5. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #5
    It says you have 1 processor because you one processor; unless you have Mac Pro, then I don't know why you're posting here. You have 2 cores, but it's still one processor.

    As with the battery, replacement is when you have less than 300 cycles and your battery health is less than 50%. So you take your current maximum ampere hours and divide it by the design capacity, or you get a utility like iStat or CoconutBattery to tell you.
     
  6. creator2456 macrumors 68000

    creator2456

    Joined:
    Jul 10, 2007
    Location:
    Chicago
    #6
    I think it is more like 80%. My first battery was replaced with 52 cycles and 89%...it had dropped from 99% to the 89% in the last three days of me owning it, so that may be why.


    To the OP: download coconutBattery and post a screenshot (command + shift + 4 then press spacebar and click the coconut battery window) of what it says so everyone here is clear about what is going on
     
  7. raymondu999 macrumors 65816

    Joined:
    Feb 11, 2008
    #7
    Actually, My brother's old 2.2SR, with the weird PrintJobManager process seen in Activity Monitor, gets pushed down to just about an hour. PrintJobManager does nothing but takes up 100% of one core, and it alternates cores, so yeah, if you were doing something truly hardcore, I suppose you could push down your battery enough like that.
     
  8. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #8
    80%? Wow Apple's a lot more giving than I thought!
     
  9. haiggy macrumors 65816

    Joined:
    Aug 20, 2003
    Location:
    Ontario, Canada
    #9
    Im getting a replacement battery... 62 cycles and 40% :(
     

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