MBP battery and power failure question

Discussion in 'MacBook Pro' started by Sir Cecil, Mar 5, 2009.

  1. Sir Cecil macrumors 6502a

    Mar 31, 2008
    Hypothetical question...

    You are away from home and your 17" Unibody MBP is asleep at home, connected to the power supply. There is a power failure in your home area and when you get home there is still no power.

    So you want to use battery power for a few hours. But the battery has run down because it switched to battery when the power was cut.

    Is there a way to prevent the battery kicking in when power is cut in sleep mode, so that in such an emergency, the battery has not been run down by the time you get to want to use it?
  2. emt1 macrumors 65816

    Jan 30, 2008
    The battery should last a really long time if the computer is sleeping.
  3. mikes70mustang macrumors 68000


    Nov 14, 2008
    turn it off if you leave on a stormy night. Um, get a batt backup, get an extra batt.
  4. jmark macrumors member

    Jan 5, 2006
    First of all you'd have to be gone for quite a number of *days* in that scenario for the battery on the 17" to get discharged.

    But one simple answer to your question is a good-size uninterruptible power supply. A big one with nothing else connected should be able to maintain AC power to a sleeping MacBook Pro for quite a long time.

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