Normally, power banks with a battery capacity lower than 27,027mAh (100 watt-hours) can be legally and safely taken on a flight.

Examples:
Some power banks within the 27,027mAh limitation:

Model 1245: 523 Power Bank (PowerCore Slim 10K PD)

Model A1286: Anker Portable Charger, 20,000mAh Power Bank

Model A1259: Anker Nano Power Bank, 10,000mAh Portable Charger with Built-in USB-C Cable

Model A1653: Anker Nano Power Bank with Built-in Foldable USB-C Connector, 5,000mAh Portable Charger 22.5W

Model A1616: Anker 321 MagGo Battery (PowerCore Magnetic 5K)

Model A1647: Anker Power Bank Battery Pack, 20,000mAh 22.5W

Model A1695：Anker Power Bank (25K, 165W, Built-in and Retractable Cables)

Currently, the majority of Anker power banks are within the 27,027mAh limitation. For example, you are able to bring the PowerCore III Elite 25600 60W (735 Power Bank) on a flight. The capacity of this PowerCore is 25,600mAh/94.72Wh and it is labeled on the bottom of the battery. However, please make sure the power bank is in your carry-on luggage since power banks cannot be placed in your checked luggage.

Note: The government and commercial flight guidelines are subject to change, it is highly recommended to confirm with the airline prior to the date of your flight.

If you have any further questions, please contact us for assistance.