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How big a charging treasure does Macau Airport need?

According to the Civil Aviation Administration, charging treasures less than or equal to 100Wh can be taken on the plane. According to the maximum rated voltage of 5V, 100Wh divided by 5V is equal to 20000mA, while the rated voltage of most charging treasures is 3.7V Therefore, charging treasures with capacity less than 20000mA can be taken on the plane, and only two charging treasures can be taken at most, but they cannot be checked.