Battery of a 4 week old macbook (2012) pro 13''. It reaches 100% after a hard time but fall down to 99% after few seconds. What is the problem?

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Battery of a 4 week old macbook (2012) pro 13''. It reaches 100% after a hard time but fall down to 99% after few seconds. What is the problem?

Why does my newly bought Macbook pro 13'' 2012 battery has a hard time reaching 100%. It reaches to 100% with a longer charging but then falls down to 99% in a few seconds time. I have heard and read about calibration. But I think that the computer is young (only 4 weeks old) to be calibirated. What might be the issue here? This problem started just recently.

MacBook Pro (13-inch, Mid 2012), OS X Mountain Lion (10.8.3)

Posted on Mar 24, 2013 5:14 PM

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Answer 1

Mar 24, 2013 5:15 PM in response to DEVENJI

http://support.apple.com/kb/TS1909

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Answer 2

steve359

Level 6

17,169 points

Mar 24, 2013 5:17 PM in response to DEVENJI

When my MBP is plugged into the wall (when I am near a plug, I usually have it plugged in) it will stop charging at 100% and drop slowly to 95% before auto-recharging to 100%.

Saves the circuits from charging all of the time.

I do run it on battery at least once a month down to 40%.

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Answer 3

Kappy

Level 10

361,741 points

Mar 24, 2013 5:17 PM in response to DEVENJI

There is absolutely nothing abnormal about the battery. There is no problem. Your battery will show declines as it gets older. One percent is of no consequence.

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