AirAsia モバイルバッテリー飛行ポリシー。

短い回答

AirAsia is tracked from its official support article for portable electronic devices: power banks are treated separately from spare lithium batteries, are capped at two per guest, must be no more than 100 Wh per unit, are prohibited above 100 Wh, are prohibited in check-in luggage, must be carried in cabin baggage or on the person, cannot be stowed in overhead compartments, must be kept under the seat or in the seat pocket, and cannot be used or charged onboard.