Apple's line of MacBook Pro laptops was intended for the professional and power users. The MacBook Pro line includes the MacBook Pro 13" Unibody, MacBook Pro 15", MacBook Pro 15" Unibody, MacBook Pro 17", and the MacBook Pro 17" Unibody.

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Why my MacBook Pro battary seems to be disconnected?

I have Macbook Pro 13 inch late 2011, when I plug the charger to my mac sometimes no color , sometimes become green and suddenly the color disappear , sometime orange and suddenly disappear, when i press battery status bar on the left shows the battery is empty

currently I can not start my mac at all.

I have doubt that the problem from MagSafe DC-In Board but still can not confirm.

please help me to troubleshoot

(note: I have tested the charger with other mac and i works perfect)

Answered! View the answer I have this problem too

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Actually Yes ,, I squeeze it accidentally

how did you fix it ?did u flexed it back to the original condition with you hands ??

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I suspect damage to your battery. If the laptop has been squeezed in to a tight space, or had something stacked on it, or dropped you could have cracked the battery case. I had a MacBook Air with intermittent, occasional battery problems... not charging, not starting then suddenly working fine for a bit.

I had to open the machine and lift out the battery in order to discover the crack. The battery looked normal when observed in situ but as I lifted it, it flexed, so I spotted the cause of the trouble.

I thought back to when someone had placed something on top of my laptop case in an overhead airline bin... that's about when the problem started.

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