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Agreed. My mid-2012 Macbook Pro Retina has been plugged in @ 100% nearly all the time it's been in use. Pretty much the only time it's not plugged in is when traveling. Battery is at 7845/8460 CurrentCapacity/DesignCapacity or 93%.

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I treat the 2012 MacBook Air I use at work the same way. It's plugged in all the time, and it stays in the office. I think its capacity is 95% or higher.

Same but slightly worse, mine is generally always plugged in.

100/8460*7633 or 90.22%

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