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Why does my Mac not turn on unless plugged in?
The battery is dead. The computer (in this case your MacBook Air) turns off because there is no more/not enough charge in the battery. If it’s necessary to have the power adapter plugged in when trying to turn it on, it’s a sure sign that the battery is discharged.
Why does my MacBook pro only work when plugged in?
A common cause of this problem is due to leaving your computer plugged in a lot of the time. This can cause the System Management Controller (SMC) to believe the power level is below a set threshold resulting in it triggering the computer to go into deep sleep mode and shutting off when unplugged.
Can a 2009 MacBook Pro run without battery?
Your computer will, at most, run at half speed with no battery. It’s simple enough to disconnect the battery without physically removing the battery from the computer, but there’s no guarantee this would allow your computer to work.
Why is my MacBook Pro not booting?
We are assuming the MacBook Pro has no battery installed in the computer, meaning there physically is no battery installed. Then, when attempting to boot the Mac or pressing the start button, nothing happens. In this case, you can force the MacBook Pro to boot by following these steps:
Why is there no battery on my MacBook Pro?
We are assuming the MacBook Pro has no battery installed in the computer, meaning there physically is no battery installed. Then, when attempting to boot the Mac or pressing the start button, nothing happens.
How can I force a MacBook Pro to boot?
In this case, you can force the MacBook Pro to boot by following these steps: Hold down the Power button for 10 seconds and continue to hold it down While still holding the Power button, connect the MagSafe power cable to the MacBook Pro and continue to hold the Power button for another 10 seconds
When did the MacBook Pro battery come out?
(To be clear, this article is aimed at older MacBook Pro model years, like a 2006, 2007, 2008, 2009, 2010, 2011, back when replacing a battery, hard disk, RAM, was all fairly easy to do by opening the bottom case).