Leang12

Q: Hi why my MacBook Pro don't show low battery alert when 20%?

My macbook don't show low battery alert how can I fix it?

MacBook Pro, OS X Mavericks (10.9.1)

Posted on Feb 15, 2014 9:07 AM

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Q: Hi why my MacBook Pro don't show low battery alert when 20%?

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  • by John Galt,

    John Galt John Galt Feb 15, 2014 9:14 AM in response to Leang12
    Level 8 (49,110 points)
    Mac OS X
    Feb 15, 2014 9:14 AM in response to Leang12

    A low battery alert won't appear until it's below 5%. If you think it's misbehaving perform an SMC reset.

  • by Leang12,

    Leang12 Leang12 Feb 15, 2014 9:16 AM in response to John Galt
    Level 1 (0 points)
    Feb 15, 2014 9:16 AM in response to John Galt

    What does this mean?

  • by John Galt,

    John Galt John Galt Feb 15, 2014 9:19 AM in response to Leang12
    Level 8 (49,110 points)
    Mac OS X
    Feb 15, 2014 9:19 AM in response to Leang12

    What are you asking?

  • by Leang12,

    Leang12 Leang12 Feb 15, 2014 9:21 AM in response to John Galt
    Level 1 (0 points)
    Feb 15, 2014 9:21 AM in response to John Galt

    Sorry I want to ask about SMC reset

  • by John Galt,

    John Galt John Galt Feb 15, 2014 9:34 AM in response to Leang12
    Level 8 (49,110 points)
    Mac OS X
    Feb 15, 2014 9:34 AM in response to Leang12

    OK, to perform the SMC reset follow these instructions. Read all the steps.


    Before Resetting the SMC

     

    Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.

     

    1. Press Command + Option + Escape to force quit any application that is not responding.
    2. Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
    3. Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
    4. Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.

     

    Resetting the SMC on Mac portables with a battery you can remove


    1. Shut down the computer.
    2. Disconnect the MagSafe power adapter from the computer, if it's connected.
    3. Remove the battery (to remove the battery - click here: MacBook or MacBook Pro).
    4. Press and hold the power button for 5 seconds.
    5. Release the power button.
    6. Reconnect the battery and MagSafe power adapter.
    7. Press the power button to turn on the computer.

     

    Still having problems? Replace steps 6 and 7 with the following:


    1. Reconnect just the MagSafe power adapter.
    2. Press the power button to turn on the computer,
    3. Then reconnect the battery.

     

    Resetting the SMC on portables with a battery you should not remove on your own

     

    1. Shut down the computer.
    2. Plug in the MagSafe power adapter to a power source, connecting it to the Mac if it's not already connected.
    3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time. The power adapter indicator light will cycle off / on once.
    4. Release all the keys and the power button at the same time.
    5. Press the power button to turn on the computer.
  • by andrek_thai,

    andrek_thai andrek_thai Sep 20, 2014 9:37 PM in response to John Galt
    Level 1 (0 points)
    Sep 20, 2014 9:37 PM in response to John Galt

    Hi John, How do I get rid of the "service battery" warning?

     

    I did the SMC reset as you suggested (twice) but it still shows.

     

    I have also noticed that the "low battery" alert doesnt appear anymore when my battery reaches 5% or lower.

    My laptop just shuts down.

     

    Please help. I have a 2013 MBP 13" with Retina display and running Mavericks OS X 10.9.5