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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Battery Drain Issue MBP Unibody

My battery drains even when the Mac is completely shut down. It'll drain ~20% overnight.

Any ideas?

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Chosen Solution

Too many cycles

Use Applications->Utilities-> System Profiler:Power to see how many cycles the battery has gone through, anything near or over 300 is the life of the battery. Though if a battery has been run completely flat too many times it might show only a small number of cycles.

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Most Helpful Answer

I would recalibrate my battery. Here's how to do it:

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Jae Lee will be eternally grateful.
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