Air North モバイルバッテリー飛行ポリシー。

短い回答

Air North is tracked from its official Dangerous Goods page, which states all spare batteries and powerbanks are permitted for carry-on baggage only, no more than 20 spare batteries in total are permitted per passenger, no more than two spare lithium batteries exceeding 100 Wh and up to 160 Wh are permitted within that total, and lithium batteries exceeding 160 Wh must be consigned as freight.