Central Mountain Air モバイルバッテリー飛行ポリシー。

短い回答

Central Mountain Air is tracked from its official Terms & Conditions baggage section. The page says spare cells or battery packs are normally used for camera equipment, mobile phones, drones, power tools, power banks, and similar devices; all cells and battery packs must be individually protected against short circuits; lithium-ion cell battery packs under 100 Wh are permitted in carry-on baggage only; spare lithium-ion cells or battery packs under 100 Wh are carry-on only; and a maximum of two individually protected spare lithium-ion batteries rated 100 Wh but not exceeding 160 Wh may be carried per passenger in carry-on baggage only, pending approval by airport agents.