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I'm going on a long backpacking trip and going to leave my Macbook at home unused. How should I store its battery to maximize the battery life?

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up vote 1 down vote accepted

Battery technology used by Apple is no different than other laptops. They're all Li-ion cells.

Apparently, the recommended practice for extended storage is to get the battery down to 40% and store it in a cool place, possibly the refrigerator.

Some relevant sources:

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