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I recently bought a 15-inch 2018 i9 MacBook Pro. After a few days, I realized that whenever I close my laptop lid for the night, it keeps on periodically making the battery chiming noise every 7 minutes or so. When I took a look at the battery in the last 12 hours (right after periodic chiming), it was clear the battery has been 100% or very near 100% for a long time. When using the MacBook Pro during the day, I do not notice any periods where the laptop should be charging but the battery status indicates otherwise. However, I might not be paying careful enough attention. Are there any further steps I can take to resolve this issue?

Battery full last 12 hours

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I fixed this by resetting my System Management Controller.

EDIT: this only temporarily fixed it. I ended up needing to exchange MacBooks.

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