This could be free in some specific cases in which the equipment is under warranty and the problems are not due to normal causes of use or accidental damage, but rather a defective part.

If during this process it is determined that the battery should be replaced, you will have to bear the cost of the repair. If you go to Apple technical support, you will find experts who will be able to make a more exhaustive diagnosis of what happens to your MacBook.

In more extreme cases, perhaps you should restore the operating system from macOS Recovery, by starting the computer and pressing command + R. You can check this from System Preferences> Software Update. If you have made the appropriate checks to determine that the number of cycles is correct, that the battery does not present a problem and also that the battery problems have been occurring since you updated the software, you could try waiting for a new macOS update. If the computer had already detected a problem, a message would appear here indicating it.

You can check this information by accessing System Information and going to Food. In the most recent ones, it is considered that with more than 1,000 cycles it has already exceeded the level of deterioration, so in that case it would be due to a physical problem with the battery. In any case, it is advisable to check the number of charge cycles that your MacBook accumulates. In fact we advise you to visit the article in which we tell you how to take care of the battery of a MacBook. Even this problem may not stem from the update as such, but from some file that is corrupting your computer and using more battery than usual. Generally, every macOS update incorporates performance improvements, but perhaps a fault can be strained that is generating battery problems in your MacBook. There are times when software is a problem in some aspects of our equipment.

Prices in other stores Verify it is a problem.

Macbook pro battery x repair cost