STEM Literacy in Consumer Tech Choices: Interpreting Battery Degradation Claims on Smartphones

科技素养在消费决策中的体现：解读智能手机电池衰减声明

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Manufacturers advertise '80% battery health after 500 full charge cycles', but this figure hides variability across temperature, charging speed, and app background activity.
Independent lab tests show identical models degrade 22% faster when routinely charged above 85% versus optimized 20–80% ranges recommended by battery chemists.

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