ethanssmith
Level 1 (8 points)
Notebooks

Q: Battery life of MacBook Pro 15" (Released Mid-2015)

How long should my MacBook Pro 15" (2015) battery Last? Im getting about a little under 5 hours and the battery condition says normal. I have turned off bluetooth and set it automatically adjust the brightness. Shouldnt I be getting more life out of my battery?

MacBook Pro with Retina display, Mac OS X (10.1.x), MacBook Pro 15"

Posted on Jul 21, 2016 7:11 PM

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ethanssmith

Q: Battery life of MacBook Pro 15" (Released Mid-2015)

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  • by Esquared,

    Esquared Esquared Jul 21, 2016 11:17 PM in response to ethanssmith
    Level 6 (8,410 points)
    Mac OS X
    Jul 21, 2016 11:17 PM in response to ethanssmith

    It depends on what you are doing. If you're just writing a text document, 5 hours is too short. If you're browsing continuously and visit website with a lot of Flash or video content, it's pretty good.

     

    To get an idea of energy consumption, open Activity Monitor and keep an eye on the energy numbers: Use Activity Monitor on your Mac - Apple Support

  • by kaz-k,

    kaz-k kaz-k Jul 22, 2016 12:55 AM in response to ethanssmith
    Level 5 (5,660 points)
    Desktops
    Jul 22, 2016 12:55 AM in response to ethanssmith

    I also think 5 hours is too short.

    Try utility, called Battery Health which is available at Mac App Store and see your battery condition if it's health.

  • by ethanssmith,Helpful

    ethanssmith ethanssmith Jul 22, 2016 8:09 PM in response to kaz-k
    Level 1 (8 points)
    Notebooks
    Jul 22, 2016 8:09 PM in response to kaz-k

    Screen Shot 2016-07-22 at 11.06.31 PM.png

    I downloaded the app and this is what came up. Do these stats seem normal to you?

  • by ethanssmith,

    ethanssmith ethanssmith Jul 22, 2016 8:10 PM in response to kaz-k
    Level 1 (8 points)
    Notebooks
    Jul 22, 2016 8:10 PM in response to kaz-k

    Also, I had a MacBook Pro 13" of the same year and that battery lasted way longer. Does the size have anything to do with it? Maybe the screen is bigger so it takes more power to light the bigger screen?

  • by Applethebest1,

    Applethebest1 Applethebest1 Jul 22, 2016 8:22 PM in response to ethanssmith
    Level 1 (55 points)
    Notebooks
    Jul 22, 2016 8:22 PM in response to ethanssmith

    Try this

     

    1. Charge your macbook to 100% but keep using it plugged in for 3-5 hrs

    2. after 3-5 hrs unplug

    3. continue to use macbook normally until it the battery drains

    4. When the battery drains leave overnight (if not possible approx 5 hrs)

    5. Plug the computer in whilst switched off (but don't use it yet)

    6. Wait until the "green" LED illuminates on the magsafe power connector

     

    Now you have calibrated your battery

     

    Also ensure you force quit applications in the background and update to the latest version of OS X  As long as the computer works and all i just do is i keep my computer on the charge the only time i unplug it if i go out but its often i take my computer with me

     

    After 1000 charge cycles consider replacing your battery if its an issue

     

    Also consider running a diagnostics on your mac sometimes the battery may be faulty even if it says normal

  • by Applethebest1,

    Applethebest1 Applethebest1 Jul 22, 2016 8:26 PM in response to Applethebest1
    Level 1 (55 points)
    Notebooks
    Jul 22, 2016 8:26 PM in response to Applethebest1

    Also just a note:

     

    I Wouldn't recommend 3rd part apps such as battery health to display this information!!!

     

    To get information about power/battery on your mac, on the top left corner click on the apple logo.

    Then click on "system report.." a screen should pop up with a sidebar, click on "Power" and all battery/power information will be displayed

  • by Meg St._Clair,

    Meg St._Clair Meg St._Clair Jul 26, 2016 7:32 AM in response to Applethebest1
    Level 9 (58,449 points)
    iPhone
    Jul 26, 2016 7:32 AM in response to Applethebest1

    Applethebest1 wrote:

     

     

     

    Now you have calibrated your battery

    You're not calibrating the battery. You're calibrating the battery sensor. The idea was that you would see a more accurate representation of how much charge was left on the battery. It has no effect on the behavior of the battery itself.

     

    Also, I don't believe Apple recommends this procedure anymore.

  • by Allan Jones,

    Allan Jones Allan Jones Jul 26, 2016 10:07 AM in response to Applethebest1
    Level 8 (35,071 points)
    iPad
    Jul 26, 2016 10:07 AM in response to Applethebest1

    Meg is correct. Apple does not recommend calibration for any Mac notebook computer that they consider to have a built-in battery, specifically these:

    These Mac notebooks have built-in batteries:

    • MacBook (13-inch, Late 2009) and later
    • All MacBook Air computers
    • All MacBook Pro computers with Retina display
    • MacBook Pro (13-inch, Mid 2009) and later; MacBook Pro (15-inch, Mid 2009) and later

    Please be sure to check the OPs machine specs before recommending a service procedure. As you can see from the list, battery calibration has been a dead issue since mid-2009. A couple of techs have told me that calibrating a battery in one of the listed computers can actually harm the battery.