This entry applies to typical non-lithium dry batteries (alkaline, nickel metal hydride, nickel cadmium, etc.) in the most common sizes: AA, AAA, C, D, button cell, 9-volt, etc.
Batteries must be protected from damage and creating sparks or a dangerous evolution of heat. For more information, see the FAA regulations on batteries.
Dry batteries (AA, AAA, C, and D)
Carry On Bags:
Yes
Checked Bags:
Yes
The final decision rests with the TSA officer on whether an item is allowed through the checkpoint.