StacknMac
Level 1 (4 points)
Desktops

Q: New MBP Battery Drain on Sleep

Hello,

 

I just purchased a MBP (early 2015) last month. Recently, I noticed the battery will drain at least 40% at night when it is in sleep mode. However, the battery seems to drain normally during use.

 

Does anyone have any insight into this problem?

 

Thanks

MacBook Pro with Retina display

Posted on Aug 30, 2016 9:35 AM

by Rysz,Apple recommended
Rysz Rysz
Level 7 (21,001 points)
iPad
A:

If it's a new device and you set up iCloud Photo Library, iTunes, syncing, backups, etc., a lot of that activity is taking place when the device is asleep and at night. This should stabilize after everything gets uploaded, download and synced. Notwithstanding, it's best to leave it plugged in all the time and overnight.

Posted on Aug 30, 2016 11:16 PM

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Q: New MBP Battery Drain on Sleep

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  • by Rysz,Apple recommended

    Rysz Rysz Aug 30, 2016 11:16 PM in response to StacknMac
    Level 7 (21,001 points)
    iPad
    Aug 30, 2016 11:16 PM in response to StacknMac

    If it's a new device and you set up iCloud Photo Library, iTunes, syncing, backups, etc., a lot of that activity is taking place when the device is asleep and at night. This should stabilize after everything gets uploaded, download and synced. Notwithstanding, it's best to leave it plugged in all the time and overnight.

  • by OGELTHORPE,

    OGELTHORPE OGELTHORPE Aug 31, 2016 4:07 AM in response to StacknMac
    Level 9 (52,793 points)
    Mac OS X
    Aug 31, 2016 4:07 AM in response to StacknMac

    You might try a SMC reset:

     

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

     

    If no success, take advantage of the warranty and make an Apple store genius bar appointment.

     

    Ciao.

  • by StacknMac,

    StacknMac StacknMac Sep 27, 2016 9:03 PM in response to Rysz
    Level 1 (4 points)
    Desktops
    Sep 27, 2016 9:03 PM in response to Rysz

    Hello Rysz,

     

    Why is it best to leave it plugged in all the time and overnight?

  • by StacknMac,

    StacknMac StacknMac Sep 27, 2016 9:08 PM in response to StacknMac
    Level 1 (4 points)
    Desktops
    Sep 27, 2016 9:08 PM in response to StacknMac

    Thank you for the suggestions. I have figured out the problem. My Macbook pro was hooked up to an external monitor. For some reason, this was the reason my battery was draining even when both the laptop and screen were asleep. I unhook my external monitor at night and now there is a normal about of battery drain. The drain that occurs when the laptop is sleeping due to the external monitor is a problem in itself, but I have not looked further into it.