Can you bring spare lithium-ion batteries on JetBlue Airways?

Allowed, with conditions

Short answer: Yes, in carry-on bags only, with battery capacity up to 100 Wh (reviewed 2026-10-27).

This page puts JetBlue Airways' own rules for spare lithium-ion batteries next to the security screening (TSA) and dangerous goods (FAA) rules for flights departing the United States. All of them apply at once when JetBlue Airways operates the flight, and you need to meet every one. Each rule is listed as its official source states it, with the date we last reviewed it.

Most recent review on this page: 2026-10-27.

What JetBlue Airways adds to the TSA and FAA rules

JetBlue Airways policy

  • Allowed, with the conditions listed

    JetBlue accepts spare lithium batteries in carry-on baggage only.

    Source: JetBlue Airways: Batteries. Reviewed on 2026-10-27.

Other rules for spare lithium-ion battery in a carry-on bag on JetBlue Airways

Security screening (TSA)

  • Allowed, with the conditions listed

    Spare lithium-ion battery rated up to 100 Wh: carry-on bags only.

    Applies when
    Battery capacity: up to 100 Wh

    Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.

  • Airline approval required

    Spare lithium-ion battery rated 101-160 Wh: carry-on bags only, with airline approval, up to two per person.

    Applies when
    Battery capacity: at least 101 Wh
    Battery capacity: up to 160 Wh
    Limits
    Number of items: up to 2

    Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.

Dangerous goods (FAA)

  • Allowed, with the conditions listed

    Spare lithium-ion battery rated up to 100 Wh: allowed in carry-on baggage.

    Applies when
    Battery capacity: up to 100 Wh

    Also note

    • Must be protected from damage and short circuit.

    Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.

  • Airline approval required

    Spare lithium-ion battery rated 101-160 Wh: carry-on only, with airline approval, up to two per person.

    Applies when
    Battery capacity: at least 101 Wh
    Battery capacity: up to 160 Wh
    Limits
    Number of items: up to 2

    Also note

    • Must be protected from damage and short circuit.

    Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.

  • Not allowed

    Spare lithium-ion battery rated over 160 Wh: forbidden.

    Applies when
    Battery capacity: more than 160 Wh

    Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.

Other rules for spare lithium-ion battery in a checked bag on JetBlue Airways

JetBlue Airways policy

  • Not allowed

    JetBlue prohibits spare lithium batteries in checked baggage.

    Source: JetBlue Airways: Batteries. Reviewed on 2026-10-27.

Security screening (TSA)

  • Not allowed

    Spare lithium-ion battery: not allowed in checked bags.

    Source: TSA: What Can I Bring?. Reviewed on 2026-10-27.

Dangerous goods (FAA)

  • Not allowed

    Spare lithium-ion battery: not allowed in checked baggage.

    Source: FAA: Airline Passengers and Batteries. Reviewed on 2026-10-27.

Check your own spare lithium-ion battery

The item checker combines these rules for the values of your own item and gives a result for a JetBlue Airways flight. Battery rules use watt-hours (Wh): the Wh calculator works it out from the Wh, or the mAh and rated voltage, printed on the battery.

Related pages

Official sources

This page lists rules as the official sources state them, for travel departing the United States. It is not a decision about your item: security officers and your airline make the final call, and rules can change after the review dates shown. Destination customs and quarantine rules are not checked. See the terms and disclaimer.