MacBook Pro - battery problem

Discussion in 'MacBook Pro' started by maya90, Feb 8, 2015.

  1. maya90 macrumors member

    Feb 16, 2011
    the battery on my MacBook Pro (15", 2010) is no longer charging (it's charging right now, but for days it wouldn't (since last Monday), that's how it goes now...)

    the main question I have is why the MacBook Pro doesn't work if it's connected to the power source... a windows machine, if the battery is not working (i.e., not charged, 0%), you can use it fine as long as it's connected to the AC.. why is this different on a mac? this is my main question... in my family there are two pc's whose batteries don't work anymore, but they work fine as long as they're connected to the power source... this is not the case with my MacBook Pro, this is very unsettling...

    thank you...
  2. Intell macrumors P6


    Jan 24, 2010
    Macbooks will still work correctly when their internal batteries die. They may not keep accurate time and not be able to run at full speed, but they still work.
  3. simonsi macrumors 601


    Jan 3, 2014
    Because the external charger on an MBP is just that, for recharging the battery, it isn't a power supply capable of supplying the full needs of the machine at full power (its how the hardware is designed, its not a "windows vs OSX" thing).

    Without battery you MBP will be throttled to half cpu power as that is all the energy the charger can provide (the MBP can draw full power from a working battery).

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