95% battery health after 5 cycles, normal?

Discussion in 'MacBook Pro' started by JSK1121, Dec 2, 2007.

  1. JSK1121 macrumors member

    Joined:
    Nov 21, 2007
    #1
    Using my brand new Blackbook and as you can tell from the subject, iStat tells me that my battery health after 5 cycles is only at 95%. Is this normal, or should I get a replacement battery from Apple?

    Much obliged.
     
  2. 119576 Guest

    119576

    Joined:
    Aug 6, 2007
    #2
    Definitely not normal. Have you calibrated your battery since you got it?

    If you calibrate and it's still that low, you should probably get a replacement battery.
     
  3. trippr macrumors member

    trippr

    Joined:
    Sep 20, 2007
    #3
    i wouldn't worry to much. It wil prob go back up.. Ive only had 3 cycles and its on 99%.. i remember it going below that..
     
  4. JSK1121 thread starter macrumors member

    Joined:
    Nov 21, 2007
    #4
    how do you calibrate your battery? I'm new to the mac, so I'm kind of in the dark here. Thanks!
     
  5. texfire macrumors member

    Joined:
    Nov 8, 2007
    #6
    wow, I'm at 86% health, 16 cycles...
    guess I'll be getting a new battery in a couple months.
     
  6. TimJim macrumors 6502a

    Joined:
    May 15, 2007
    #7
    It should go back once you calibrate it. Do you leave it plugged in all the time?
     
  7. bigandy macrumors G3

    bigandy

    Joined:
    Apr 30, 2004
    Location:
    Murka
    #8
    Calibrate it now!

    I'm at 81% and I've just passed the 400 cycle mark. (eeep! not even had the MBP a year! :eek: )

    I'm going to do mine tonight - just realised I haven't done it since, um, well, evar. :eek:
     
  8. jabrowntx macrumors 6502

    Joined:
    Jul 5, 2007
    #9
    One of my batteries is down to 67% after 7 cycles and I DO calibrate regularly :( In fact, I fully charged the battery last night and turned-off the machine before going to bed. When I tried to turn on the machine it was completely dead and I had to plug it in to turn it on.
     
  9. Eraserhead macrumors G4

    Eraserhead

    Joined:
    Nov 3, 2005
    Location:
    UK
    #10
    That one needs replacing, mine is at 80% after 274 cycles.

    Coconut Battery is reporting it as 7 for me, which is wrong, you can find the real figure in Apple Menu==>About This Mac==>More Info==>Power.

    With regards to the OP's questing 95% after 5 cycles sounds OK, but it should still be at a similar figure after 50 to 100 cycles.

    With regards to my battery, I have done no conditioning at all, though I do drain it fairly low most days, as you can see from the high cycle count, as the machine is only 14 months old (and I spent a month in Vietnam, and Thailand in September).
     

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