XiamenAir 充电宝飞行政策。

简短答案

XiamenAir publishes readable official dangerous-goods guidance: spare batteries for personal consumer electronic devices, including power banks, are carry-on only; power banks up to 100 Wh are limited to two per person; 100-160 Wh power banks are limited to two per person with operator approval; total spare batteries cannot exceed 20 pieces; spare batteries and power banks must not be placed in overhead bins; and power banks must not be used to charge or power devices in the cabin.