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Mac battery dying too quickly even after servic...

I bought my Macbook Pro about a year ago.After about 4-5 months I noticed that the battery is lasting less than the amount of time it is supposed to ( about 4 hours max).I took it to service just before the first year warranty finished, it came back telling me that all is fine. In the first night with the screen closed in sleep mode it lost 20% of the battery.Again took it back, came back same way so I took it for third time.The answer from service is that they checked everything and all is good.I deactivated file vault , etc ,all kinds of applications , still it is loosing battery overnight in sleep mode. Imagine when it is in use. Anyone has any ideea what I can do???

最後更新：2017-09-12 19:18:39

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