Can You Take A Rechargeable Battery Pack On A Plane. They may also need approval by airport authorities before you can fly with them. You can carry lithium batteries on the plane.

Lithium ion batteries aka. Rechargeable batteries installed in equipment may be in checked baggage. However the FAA states that you can only bring batteries for personal use so large quantities which seem to be for resale wouldnt be allowed.
Typical AA AAA C D 9-volt button sized cells etc.
All batteries including power banks should be protected to prevent short circuits. Dry cell rechargeable batteries such as Nickel Metal Hydride NiMH and Nickel Cadmium NiCad. Dry cell alkaline batteries. Spare batteries must be protected from damage and short circuit.

