MacBook Air and Pro compared: Battery capacity in watt-hours

Measuring MacBook battery life in straight hours of real-world usage (as Apple likes to do) is not always an accurate metric for comparison purposes as so many use and environmental factors play a part. We can, however, rely on straight technical specifications to tell us the stated battery capacities of each MacBook. Where Apple is secretive about iPhone battery specifications (see our list of iPhone battery capacities based on teardowns), the company does list MacBook capacities in Watt hours

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