China Eastern power bank rules: up to 2, no use on board

In checked bags

Power banks can only be carried in carry-on baggage (not checked)

No approval needed

100Wh or less: allowed on flights

With approval

Over 100Wh up to 160Wh: allowed on flights with airline approval

Not allowed

Over 160Wh: prohibited on board or in checked baggage

How many

Up to 2 power banks per passenger

Using it on board

Do not charge power banks from any power source, and do not use them to charge other devices, during the flight

Where to keep it

Do not place power banks or spare lithium batteries in overhead bins

Packing

Insulate the electrodes (e.g. tape over exposed terminals) or place each battery in its own bag/case

No. Do not charge power banks from any power source, and do not use them to charge other devices, during the flight.

In the airline's own words

• Power bank rules, airline by airline
• Power banks on Japanese flights