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Sir Cecil

macrumors 6502a
Original poster
Mar 31, 2008
793
0
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?
 
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?

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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