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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 ...


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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 ...


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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 ...


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This means your MacBook does not recognise the battery. Maybe it's not installed properly? https://support.apple.com/kb/PH18598?locale=en_US



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