Why is my MacBook Pro 2015's battery swollen? The battery condition is 'normal' and around 400 cycles. I've always plugged in charging and doing heavy tasks. - Quora
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The Nightmare of Replacing a Battery on a Mac Laptop (Why Your Machine Might Be Lying to You) - Photofocus
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Will Bad CONDITION: REPLACE NOW Battery Slow Macbook Pro Air Power & SPEED (Service Soon Dead) - YouTube
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