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Bag trackers and smart bags

Can your AirTag, Tile or smart bag go in checked luggage? The US FAA battery limits, with a quick check. Always confirm with your airline.

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These are US FAA rules. The FAA says to check with your airline and that international rules may differ. We could not read any airline's own page, so we list no airline rules.

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What the FAA pages say

  • Baggage location tracking devices (bag tags) powered by lithium batteries are portable electronic devices that you attach to or place in baggage to track it. Check with the airline before travelling with them.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • If you equip a checked bag with a tracking device, the battery must meet the limits: lithium metal with a lithium content of 0.3 grams or less, or lithium ion of 2.7 watt-hours or less.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • Baggage with lithium batteries built in (smart bags with tracking, digital weighing or motors) must be carried on unless the batteries are removed. Removed batteries are treated as spare batteries.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • Such baggage is only allowed in checked baggage when the batteries are within the same limits: 0.3 g lithium metal or 2.7 Wh lithium ion.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • Portable electronic devices powered by lithium batteries placed in checked baggage must be completely switched off (not in sleep or hibernation mode) and protected from unintentional activation or damage.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • For international flights check with your airline, as international regulations may vary from the US ones.

    www.faa.gov · Last updated Monday, April 13, 2026 · Checked 2026-10-24

  • Spare (uninstalled) lithium metal and lithium ion batteries are always prohibited in checked baggage and must go in carry-on baggage.

    www.faa.gov · Last updated Tuesday, September 23, 2025 · Checked 2026-10-24

  • When a carry-on bag is checked at the gate or at planeside, any spare lithium batteries must be removed from the bag and kept with you in the cabin.

    www.faa.gov · Last updated Tuesday, September 23, 2025 · Checked 2026-10-24

Checked 2026-10-24. This is a summary, not legal or safety advice: the airline and the security officer have the final say.