# Batteries, dry cell (alkaline, NiMH, NiCd: AA, AAA, C, D, 9-volt) — Postal shipping restrictions by item category For Batteries, dry cell (alkaline, NiMH, NiCd: AA, AAA, C, D, 9-volt), carrier is FAA (air transport); restriction type is restricted; scope is carry-on and checked baggage; conditions is Battery terminals must be protected from short circuit, e.g. retail packaging, non-metallic tape, a battery case or a plastic bag, recorded from its source on 2026-08-10. - **Item category:** Batteries, dry cell (alkaline, NiMH, NiCd: AA, AAA, C, D, 9-volt) _(verified: appears in the quote below)_ - **Carrier:** FAA (air transport) _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** carry-on and checked baggage _(our reading, not quoted from the source)_ - **Conditions:** Battery terminals must be protected from short circuit, e.g. retail packaging, non-metallic tape, a battery case or a plastic bag. _(verified: appears in the quote below)_ ## What the source says > Battery terminals (usually the ends) must be protected from short circuit (i.e., the terminals must not come in contact with other metal). ## Source - https://www.faa.gov/hazmat/packsafe/printable-chart Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).