A:Answer Regarding the transport of lithium-ion batteries on flights, compliance with Transportation Security Administration regulations is confirmed, specifically the 100-watt-hour limit, which equates to roughly 27,000 mAh. The power bank under consideration, with a rating of 20,000 mAh, adheres to these stipulations. Moreover, the typical capacity of cellphones, approximately 5,000 mAh, is also well within the established parameters. Therefore, the power bank is permissible for air travel, provided its mAh capacity remains below the regulatory threshold.
