Is it possible to keep a macbook pro charged to only 60%(when plugged in)?

Discussion in 'MacBook Pro' started by Good User, Jul 30, 2014.

  1. Good User macrumors member

    Good User

    Joined:
    Jul 23, 2014
    #1
    My purpose is extending the battery lifespan of my rMBP battery. I only use it at home. I know it needs some modification in OS X or Battery firmware and it's not an easy thing to do, and no one has done it yet. Any possibility for this?


    According to battery university keeping SoC between 20% and 80% is best for maximizing the lifespan of all kinds of batteries and car makers do this for electric cars' batteries, so why not to do this for laptops? for example imagine when the battery SoC reaches to 60% or 80% the light on magsafe turns green and charging stops.
     
  2. fenderbass146 macrumors 65816

    fenderbass146

    Joined:
    Mar 11, 2009
    Location:
    Northwest Indiana
    #2
    I know this isn't the answer your looking for but you worry to much. Three or 4 years down the road when the battery is starting to perform poorly you will be in the market for a new Mac probably.
     
  3. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #3
    No need to worry about that. MacBook batteries are rated to hold at least 80% of its original capacity for 1000 cycles (one discharge from 100% to 0% is one cycle, one discharge from 100% to 50% is half a cycle).
    I have a 2009 MBP with 518 cycles and still 83% battery health.

    ______________________________________________________
    This should answer most, if not all, of your battery questions:
    Apple Notebook Battery FAQ by GGJstudios
    The F.A.Q. includes the following topics:
    • BATTERY INFORMATION
    • BATTERY LIFE FROM A CHARGE
    • AC POWER
    • CALIBRATION
    • BATTERY LIFESPAN
    • CHECKING STATUS AND HEALTH
    • CHARGING
    • WHAT IS A CYCLE?
    • BATTERIES ARE NOT COVERED
    • BULGING OR SWELLING BATTERY


    ______________________________________________________
     

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