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Most likely the battery has died or is no longer being recognized by the system. To verify it is not the latter Apple has a KB article that will help with resetting the SMC. If it is the former it's time to replace the battery. If you are under warranty take it to a nearby Apple store. If not they can still do the repair but it will cost you. Depending on ...


XCode playgrounds are quite slow currently and sometimes they get blocked for no apparent reason (the processing spinner spins indefinitely). This is true for me on a 2015 Macbook Pro and a 2009 Macbook Pro. I think there is quite a chance that it will be no better on a Macbook. I think, however, that this is largely a software problem and it will take more ...


Constant charging should not damage the battery in an extreme manner. Yes, you would get more life from it if you would let it always cycle between 40 and 80%, but the Mac is already cycling power in the high 90s even though it is not showing it to you. I have not been cautious at all with by 2009 Macbook Pro and I can still get around 2 hours of autonomy ...


This means your MacBook does not recognise the battery. Maybe it's not installed properly?

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