Apple and Consumer Reports have been working together to determine the issues that Consumer Reports had with the new MacBook Pro’s battery life during its review, and on Tuesday, both issued statements on their findings. It turns out that Consumer Reports uses a developer setting that typical users don’t use, and also that the same setting has a bug that affects performance.
In its review of the MacBook Pro, Consumer Reports said its battery life test results varied wildly, from 4 hours to 19 hours. Consumer Reports explained on its website that its laptop battery tests do not necessarily reflect real-world usage; instead, tests are designed to be consistent across different laptops for comparison’s sake. In the case of the MacBook Pro, Consumer Reports’ battery tests uses Safari in Developer mode, which is not the default setting. (You might not even know that Safari has such a mode.)
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