Official website of the Department of Homeland Security

Transportation Security Administration

Non-Spillable Wet Batteries

Carry On Bags:

Yes (Special Instructions)

Checked Bags:

Yes

No more than two spare non-spillable wet batteries are allowed as long as each battery does not exceed 12 volts and 100 watt hours.

The final decision rests with the TSA officer on whether an item is allowed through the checkpoint.