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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Calibrate MacBook Pro Battery


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gzavincent

 
Member Since: Nov 03, 2010
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Hi guys,
I was calibrating my macbook pro battery yesterday.
According to Apple, when the battery runs out, my laptop should be go to sleep.
But mine go to hibernate instead. Why?
When I see the light indicator doesn't blink, then I plug in the power adapter and start my machine. So, did I ruin the calibration process?

MacBook Pro 13" | 2.66GHz CPU | 4GB RAM | 320GB HDD | Mac OS X Snow Leopard | Windows 7 64-bit
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Quote:
Originally Posted by gzavincent View Post
Hi guys,
I was calibrating my macbook pro battery yesterday.
According to Apple, when the battery runs out, my laptop should be go to sleep.
But mine go to hibernate instead. Why?
There is no hibernate mode in OS X. There is something roughly akin to it known as "safe sleep", but you're likely just confused here. When the battery runs down to the point that the machine is forced into sleep, it doesn't wake as quickly as it would normally - nor should you disturb it at that point.

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When I see the light indicator doesn't blink, then I plug in the power adapter and start my machine. So, did I ruin the calibration process?
Probably.

Calibration is really quite simple. Use the machine on battery until it goes to sleep. Close the lid, hook it up to the power adapter and let it sit until the light on the MagSafe connector turns green. You don't use it while it's recharging at all.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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gzavincent

 
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Screen shot 2010-11-09 at AM 08.22.53.png

Guys, do you think my battery heath is normal?

MacBook Pro 13" | 2.66GHz CPU | 4GB RAM | 320GB HDD | Mac OS X Snow Leopard | Windows 7 64-bit
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chscag

 
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Let's see what is says after you calibrate it. Right now the capacity is low for a battery that new. If you get the same indication after calibration, you might want to make an appointment with Apple. If the battery turns out to be marginal, they'll replace it with a new one.
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gzavincent

 
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After a few hours I posted my post just now, now my battery capacity drop another 2%. So, do you think I have to send my mac to the service center immediately?

MacBook Pro 13" | 2.66GHz CPU | 4GB RAM | 320GB HDD | Mac OS X Snow Leopard | Windows 7 64-bit
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If that's the case, there's clearly something wrong. Make an appointment with your local Apple store genius and let them look at it.
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Apple has a great site for how to maintain and use your batteries properly for all of their devices:

Apple - Batteries

In addition, you'll find a lot of great information by searching here at Mac-Forums. There are many threads out there that you'll find useful on this subject:

Mac-Forums.com - Search Forums

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gzavincent

 
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I sent my MacBook to the service center yesterday. The people there say that my battery is perfectly okay, and according to their software, my battery health is still 98%.

MacBook Pro 13" | 2.66GHz CPU | 4GB RAM | 320GB HDD | Mac OS X Snow Leopard | Windows 7 64-bit
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