Greater Bay Airlines モバイルバッテリー飛行ポリシー。

短い回答

Greater Bay Airlines is tracked from its official baggage page's Important Information Regarding Lithium Batteries section: power banks are regarded as spare batteries, spare batteries are carry-on only and not allowed in check-in baggage, each passenger may carry a maximum of two lithium battery power banks from March 28, 2026, power banks may not be used to charge PEDs or recharged during flight, overhead-compartment stowage is prohibited, spare batteries up to 100 Wh are capped at 20 pieces, 100-160 Wh spare batteries are capped at two pieces, and spare lithium-ion batteries over 160 Wh are forbidden.