MacBook Pro shows false empty battery

Discussion in 'MacBook Pro' started by PeterLC, Apr 12, 2018.

  1. PeterLC macrumors newbie

    Jul 26, 2016
    St. Andrews, Manitoba, Canada
    I have a MacBook Pro, model 10,1. running High Sierra 10.13.4. Since Sierra this computer has often, but not every time, been failing to start - showing me the empty battery. When I then plug it in, a few seconds go by and it starts up and displaying anywhere from 25% to 65% battery. Why is the computer failing to start when unplugged, when it has ample battery life to work with?

    Thanks in advance. Peter
  2. jerryk macrumors 601

    Nov 3, 2011
    SF Bay Area
  3. JPack macrumors 68040


    Mar 27, 2017
    This is a strong indication your battery needs service.

    As the battery ages, the battery impedance increases and is unable to provide the "peak power" needed to start up a computer. The battery gauge loses calibration as this happens.
  4. Fishrrman macrumors P6


    Feb 20, 2009
    Use Coconut Battery (free download) to check the battery.
    Post a screenshot of your results here.

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