to drain or not to drain?

Discussion in 'MacBook Pro' started by Jongewehr, Jul 6, 2009.

  1. Jongewehr macrumors 6502

    Joined:
    May 1, 2009
    #1
    hey guys had my MBP for about 3 months now.

    i know your soposoed to cycle your battery once a month.

    i have not fully drained my battery from start to finish..., i have put a number of cycles on it (maybe one a week) by using half an plugin it back in.

    is this ok or do i still need to fully drain it. should i do it today or just once in a blue moon.
     
  2. celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #2
    Apple recommends going it every two months or so. You should fully drain it. Run coconutbattery (free app) and post the results here.
     
  3. rgarjr macrumors 603

    rgarjr

    Joined:
    Apr 2, 2009
    Location:
    Southern Cal
    #3
    ive had my MB for like 4 months now and have yet to do the full drain/charge thing. Will probably do it soon though.
     
  4. mikes70mustang macrumors 68000

    mikes70mustang

    Joined:
    Nov 14, 2008
    Location:
    US
  5. covertyows macrumors member

    Joined:
    Jul 2, 2009
    #5
    what is the expected lifespan of an apple battery? is there a place where I can look at expected lifespan with good care and bad care for comparison?
     
  6. asianjello macrumors newbie

    asianjello

    Joined:
    Jun 28, 2009
    Location:
    Earth
    #6
    I think the expected lifespan is about 1000 cycles.
     
  7. Jongewehr thread starter macrumors 6502

    Joined:
    May 1, 2009
    #7
    kk cool guys , so do i just unplug an let it run down until it hibernates?
     
  8. Jongewehr thread starter macrumors 6502

    Joined:
    May 1, 2009
    #8
    also will my MBP reboot or will the current session come back?
     
  9. Maxpilot macrumors member

    Joined:
    Jun 24, 2009
    Location:
    Midwest
  10. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #10
    For the non-removable units, they claim >80% capacity through 1000 cycles, for removable batteries they say you should have >80% capacity though at least 300 cycles.
     
  11. appleguy123 macrumors 603

    appleguy123

    Joined:
    Apr 1, 2009
    Location:
    15 minutes in the future
    #11
    sorry was totally wrong!!!! can i delete a post all together?
     
  12. designgeek macrumors 65816

    designgeek

    Joined:
    Jan 30, 2009
    Location:
    "Town"
    #12
    It's best to do a full calibration the first time you use it. Just let it go, I'd actually use it to play music or something that keeps it up and let it go until it goes into deep sleep. When you plug it in and push the power button it will start back with the same session. You can even take out the battery when it's in deep sleep and it will keep the session. I'd try to calibrate it every two months or so and you'll get good battery life. I've calibrated mine quite often and it just recently dropped from 100% to 98% health on 394 cycles and I've had it since October.
     

Share This Page