Battery life never at 100%?

Discussion in 'MacBook Pro' started by AndrewCjDuong, May 22, 2010.

  1. AndrewCjDuong macrumors member

    Joined:
    Feb 7, 2010
    #1
    My battery life is never at 100%. Is there a reason why or is it just how the macbook pro battery's are like? I'm only getting like 4 hours out of it too. 50% brightness with WiFi on.
     
  2. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #2
    1. How old is the computer?

    2. What are you doing on the computer?
     
  3. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
  4. Gorilla Power macrumors 6502

    Gorilla Power

    Joined:
    Mar 19, 2010
    #4
    If you search the forums once you'd find out that this is very normal. There's nothing to worry about.

    Try calibrating your battery and you'll see positive results.
     
  5. AndrewCjDuong thread starter macrumors member

    Joined:
    Feb 7, 2010
    #5
    I got my MacBook Pro in March 2010. I've already calibrated it.
     
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    You should have calibrated it at least two or three times by now. Once when you first got it, then every 30 days or so since then, depending on how much you use it on battery power.
     
  7. gazwas macrumors member

    gazwas

    Joined:
    Aug 11, 2008
    Location:
    UK
    #7
    You don't have to calibrate your battery!!

    It will give a more accurate battery percentage indication but will not effect the condition of your battery.
     
  8. AndrewCjDuong thread starter macrumors member

    Joined:
    Feb 7, 2010
    #8
    Yesterday was my first time doing it. I barely ever use battery. It's mostly connected to my external monitor. It shows I have about 43 Cycle Counts with the battery.
     
  9. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
    No one said anything about calibration being mandatory or affecting the condition of a battery, as you would know if you took the time to read the link I posted. :rolleyes:
    Apple recommends calibrating every 30 days if you run on battery infrequently.
     
  10. King Apple macrumors regular

    King Apple

    Joined:
    Mar 17, 2010
    #10
    Ya i had the same issue, calibrating the battery should take care of the problem.
     
  11. swish2351 macrumors 6502

    Joined:
    Feb 28, 2010
    Location:
    Michigan
    #11
    CALIBRATING THE BATTERY DOES NOT HELP AT ALL!!!

    I got my MacBook Pro in April. I have not calibrated it once. Not once. And I get 11 hours w/ 50% Brightness, Web Browsing, Typing, WiFi ON, Bluetooth OFF, Backlit Keyboard OFF. Calbrating only makes the little percentage number more accurate:rolleyes:big whoop:p
     
  12. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #12
    Really? Because when I calibrated once it boosted my battery capacity about 1 hour. And I only have to do it twice a month. Pretty worth it:D
     
  13. AndrewCjDuong thread starter macrumors member

    Joined:
    Feb 7, 2010
    #13
    K I'll calibrate it again but I'm not too clear about it.

    First, charge it to full. (cable is lit green)
    second, drain the battery until it goes into sleep.
    third, turn it off? how do you do that when the battery is completely drained.
    fourth, wait 2 hrs
    fifth, charge it full.

    am i right?
     
  14. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #14
    No, that's not right. Did you follow the FAQ link in the 3rd post in this thread?

     
  15. AndrewCjDuong thread starter macrumors member

    Joined:
    Feb 7, 2010
    #15
    I'll do that. Doubt it'll make a big difference though... it's at 3:07 right now and I just unplugged it with 50% brightness.
     

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