Battery life/health

Discussion in 'MacBook Pro' started by jimijazz, May 23, 2008.

  1. jimijazz macrumors member

    Joined:
    May 24, 2007
    #1
    I bought a MBP a year ago and the battery is down to 45% health. Considering that I use the computer pretty much daily (at least an hour a day, 2-3 on average), is this normal? I'm reading the reviews for the replacement battery on the Apple Store page and they're not encouraging.
     
  2. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #2
    How many cycles do you have? You can find it in System Profiler. If you have less than 300 then you can go and get yourself a replacement.

    And please use SEARCH; already a gazillion threads about this.
     
  3. looking4anotebo macrumors 6502

    Joined:
    Jul 9, 2007
    #3
    I have a 9 month old MBP.

    14 cycles and it's at 93%.

    I am not happy that it's at 93% already, but I guess I will have to wait to see what happens. It dropped from 98% to 93% in like a week.
     
  4. greekpaz22 macrumors regular

    Joined:
    Feb 25, 2008
    #4
    I had the same thing happen to me..but when you run down the battery all the way and then charge it back up, the health will go back up to 97/98%
     
  5. SimD macrumors regular

    Joined:
    Apr 15, 2008
    #5
    Hmmm 7 month old one here with 135 cycles and 91% :O
     
  6. catachip macrumors regular

    catachip

    Joined:
    Jun 7, 2007
    Location:
    Vancouver, British Columbia
    #6
    I had a similar problem. I had a 10 month old MacBook Pro. The battery was down to 40% health (according to Coconut Battery) with 80 cycles. It would only last 30 minutes, often shutting down altogether at 50% or 60%. I did not have AppleCare.

    I called Apple, and they said they don't replace batteries (they are "consumables"). Later in the month I bought Apple Care for the MacBook Pro (within the one year requirement). Then, I called Apple back, and low-and -behold they were now willing to replace the battery. They overnighted me a new battery for free and I just had to send back the old one in the box.

    So, if you have AppleCare, and the battery has low health (like 50% or lower) after a year (with 100 or less cycles), then you can get a replacement. Low cycles and the computer turning off while still saying it has 50-60% power are sure signs you've got a defective battery.

    With no AppleCare, good luck getting them to replace it.
     

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