Brand new 15" MBP, battery goes dead when sleep overnight

Discussion in 'MacBook Pro' started by Aluminum213, Oct 10, 2015.

  1. Aluminum213 macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #1
    I've noticed a few times with this new laptop that if I end the day on 70-80% battery and put the laptop to sleep overnight, it's either completely dead or close to dead the next morning. The battery is fine when I actually use it though, it's just draining like mad when on sleep

    This doesn't sound normal and I don't remember this ever happening with my old 2010 MBP
     
  2. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #2
    Normal battery drain in sleep mode should be around 1% per hour.

    Something is either keeping your MBP awake or waking it up. Find out what.
     
  3. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #3
    Simple solution:
    Power it OFF at night -- all the way off.

    The boot time on these is very fast...
     
  4. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #4
    I suspect that your MBPro is not sleeping at all.
    If you simply close the lid for sleeping, it's possible that the sleep sensor is faulty. Your MBPro would really be hot, if the lid is closed, but not sleeping.
    Do you leave your MBPro connected to any external devices?
     
  5. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #5
    How do I figure this out? Because when j first bought it wasn't doing this

    I don't leave it connected to anything, I just close the cover and walk away.
     
  6. Mcmeowmers macrumors 6502

    Joined:
    Jun 1, 2015
    #6
    Do you notice the screen dim when you close the lid?
     
  7. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #7
    while closing it? no
     
  8. CoastalOR macrumors 68000

    CoastalOR

    Joined:
    Jan 19, 2015
    Location:
    Oregon, USA
    #8
    Try this:
    The terminal command below will reveal what is waking up the Notebook;
    cat /var/log/system.log | grep -i "wake reason"
     
  9. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #9
    how do I input this command?
     
  10. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #10
    Type it in your Terminal. Easier would be to copy/paste the exact text - which prevents typing errors.
    That's assuming the command is correct. It doesn't actually output anything on my Mac.
    But, "wake reason" is reported in the kernel.log, and not the system.log.
    Might also be that I am using the command in a Lion system, so that may be the difference.
     
  11. CoastalOR macrumors 68000

    CoastalOR

    Joined:
    Jan 19, 2015
    Location:
    Oregon, USA
    #11
    I am using OS 10.10.5 and it works fine on my system. I did a quick test to verify before my initial post.
    Here is a sample of what it shows for my system (all times and reasons for waking since the last start)
    Code:
    XXXXX-MacBook-Pro:~ skull$ cat /var/log/system.log | grep -i "wake reason"
    Oct 10 07:13:13 XXXXX-MacBook-Pro kernel[0]: Wake reason: XHC1
    Oct 10 07:32:52 XXXXX-MacBook-Pro kernel[0]: AppleDeviceManagementHIDEventService::processWakeReason Wake reason: Host (0x01)
    Oct 10 07:36:55 XXXXX-MacBook-Pro kernel[0]: Wake reason: XHC1
    Oct 10 07:46:59 XXXXX-MacBook-Pro kernel[0]: AppleDeviceManagementHIDEventService::processWakeReason Wake reason: Host (0x01)/
    OP: Like DeltaMac said, the easiest input method is to copy and paste it in Terminal after it is launched.
     
  12. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
  13. garirry macrumors 68000

    garirry

    Joined:
    Apr 27, 2013
    Location:
    Canada is my city
    #13
    Post the result here.

    Are you sure the computer actually goes to sleep? Does the fan spin when you close it after a few seconds?
     
  14. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #14
    Did one final test, charged MacBook to 100% last night, took it off charger and went to sleep

    Woke up and it was at 14%, basically confirming it 100% wasn't sleeping
     
  15. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #15
    If your lid was closed all night, and still running, not sleeping, then your MacBook would be quite warm to the touch.
    Sleeping, the case would always be completely cold, particularly after several hours.
     
  16. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #16

    The macbook felt warm this morning when I picked it up, battery dropped from 100 to 14% overnight
     
  17. garirry macrumors 68000

    garirry

    Joined:
    Apr 27, 2013
    Location:
    Canada is my city
    #17
    Then it's most likely that it doesn't go to sleep. Do what I told you, when closing the lid, stay near the computer for a few seconds and wait and see if the fans actually stop spinning.

    Oh, and, I recommend you turn off your computer every night instead of putting it to sleep. Just a suggestion.
     
  18. Erdbeertorte, Oct 11, 2015
    Last edited: Oct 11, 2015

    Erdbeertorte macrumors demi-goddess

    Joined:
    May 20, 2015
    #18
    Did you check "Energy Saver" options in "System Preferences"? Perhaps it wakes up because of a network access.

    I would try an NVRAM reset by holding "cmd + P + R" while booting, until it reboots while the chime. The chime might be louder after the reboot if the volume was turned down before.

    https://support.apple.com/en-us/HT204063

    And resetting the system management controller (SMC) by holding on the left side of your keyboard "alt + ctrl + shift (the arrow above the fn key) + power button" while it is turned off and attached to power.
    You should hold the keys for at least ten seconds or until you see that the color of the charging LED changes from green to orange and back. After that release all four keys and just push the power button to turn it on.

    https://support.apple.com/en-us/HT201295


    Edit: If you never power off your MacBook it could also help to just do this one time and turn it back on again or just reboot it. ;)
     
  19. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #19
    The fan is still spinning when I close the lid, I'm definitely shutting this down every night till it's fixed

    did both
     
  20. snaky69 macrumors 603

    Joined:
    Mar 14, 2008
    #20
    Some apps actually prevent a computer from sleeping properly. What is usually open when you try and put your computer to sleep?

    Also, why are you unplugging it overnight?
     
  21. Aluminum213 thread starter macrumors 68040

    Aluminum213

    Joined:
    Mar 16, 2012
    #21
    Right now I'm just using Apple apps like safari, iTunes, iMessage, nothing special


    I'm unplugging it overnight because when the macbook is at 80% battery I don't see why I need to leave it charging all night
     
  22. Max(IT) Suspended

    Max(IT)

    Joined:
    Dec 8, 2009
    Location:
    Italy
    #22
    try to put it in stop with the lid opened and check it in the morning.
     

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