# Spare (uninstalled) lithium ion and lithium metal batteries · TSA (air transport screening) — Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules For Spare (uninstalled) lithium ion and lithium metal batteries, authority is TSA (air transport screening); restriction type is restricted; scope is carry-on baggage only, recorded from its source on 2026-08-04. - **Item or substance:** Spare (uninstalled) lithium ion and lithium metal batteries _(verified: appears in the quote below)_ - **Authority:** TSA (air transport screening) _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** carry-on baggage only _(our reading, not quoted from the source)_ - **Conditions:** Must be carried in carry-on baggage only. Lithium metal limited to 2 grams per battery; lithium ion limited to 100 watt hours (Wh) per battery. ## What the source says > Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery. Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery. ## Source - https://www.tsa.gov/travel/security-screening/whatcanibring/items/lithium-batteries-100-watt-hours-or-less-device Last verified: 2026-08-04. Review by: 2027-08-04. Part of [Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules](https://referencesource.org/air-travel-item-restrictions/).