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Can You Take Heated Clothing on a Plane? A Battery-Travel Checklist
Yes - heated clothing can normally fly with you, but the rule follows the battery, not the garment. Under FAA PackSafe guidance, spare (uninstalled) lithium-ion batteries, including power banks, must travel in carry-on baggage only. Take the pack out, protect the terminals, keep it in the cabin, and confirm the details with your airline before you leave.
Heated clothing is a garment with integrated heating elements powered by a removable rechargeable lithium-ion pack. The pack sits in a zippered pocket and connects through a short cable, so it comes out in seconds. That separation is what makes air travel straightforward: once the pack is out, the garment is fabric, heating wire and a controller.
The Short Answer: The Battery, Not the Garment
Airlines regulate batteries, not clothing. A pack that is installed in a device falls under the rules for battery-powered devices; a pack you have removed becomes a spare lithium-ion battery and follows the carry-on-only rule. Because most of the Dr. Warm range uses a detachable pack across jackets, vests, gloves and socks, the practical answer is to remove every pack before you pack.
One detail catches people at the gate: if your carry-on bag is taken from you at the gate or planeside, all spare batteries must be removed first and kept with you in the cabin. Both the FAA and IATA state this explicitly.
What the FAA and IATA Rules Say
The table below reflects the current published guidance checked on 12 November 2026. Individual airlines may apply stricter limits, so treat it as a baseline rather than a boarding guarantee.
| Question | Current rule | Source |
|---|---|---|
| Where can a spare pack go? | Carry-on baggage only. Remove all spare batteries before a bag is gate-checked. | FAA / IATA |
| Standard size limit | Up to 100 Wh per lithium-ion battery is generally allowed in carry-on baggage. | FAA / IATA |
| 100-160 Wh | Up to two spare batteries per person, with airline approval. | FAA |
| Over 160 Wh | Usually not permitted on passenger aircraft. | IATA |
| Terminal protection | Original packaging, tape over the terminals, or a protective case or pouch. | FAA / IATA |
| Damaged or recalled packs | Must not be carried on board in either cabin or hold baggage. | FAA |
| Packs for resale or distribution | Prohibited as spare batteries, including vendor samples. | FAA |
Capacity is measured in watt-hours, not mAh. The FAA gives the conversion as Wh = voltage x amp hours (Ah); if your label only prints mAh, divide by 1,000 to get Ah first. Do not guess the figure from the size of the pack - read the rating printed on the label, because that is what security will read too.
UN38.3 (T1-T8) is the transport test sequence for lithium cells and batteries, and a test summary is available for the pack supplied with your garment. Bring the battery specification sheet and that summary when you travel with samples. An SDS may also accompany a shipment, but it is a safety data sheet and shipping document - not a certification.
It is worth knowing how common the mistake is: in an IATA passenger survey, 44% of travellers carry a power bank, yet 45% believed power banks could go in the hold and 33% were unsure about the limits on larger batteries. A removable heated-apparel pack is treated the same way as a power bank.
A Pre-Flight Checklist for Heated Gear
- Remove every pack from the garment pocket before packing.
- Read the Wh rating printed on the pack label and compare it with your airline's limit.
- Protect the terminals - retail packaging, tape over the contacts, or a snug protective pouch.
- Put the packs in your carry-on, never in checked luggage.
- Pack the garments separately. With no battery installed, a jacket or pair of gloves is fabric and wiring.
- Bring the paperwork: battery specification sheet and UN38.3 test summary.
- Check your airline's own battery page the day before you fly, since local rules can be stricter.
The same separation helps at the other end of the trip. If you are storing gear until next winter, charge state and storage conditions matter more than the garment itself; see our guide on storing heated gear batteries.
Travelling With Samples or a Buyer Meeting
This is the part that matters for distributors and sourcing teams. FAA guidance states that batteries carried for further sale or distribution, including vendor samples, are prohibited under the spare-battery allowance. A sample garment with a pack installed is a different case, and the answer depends on how the airline classifies that device - so ask before you fly rather than at the security desk.
A workable approach for a trade show or buyer meeting: travel with the garments and the required battery documentation, confirm the battery arrangement with the carrier in writing, and carry the minimum number of packs needed for a demonstration. Our heated clothing battery guide sets out the voltage groups and connector options, and the safety overview covers the protection built into the packs.
Frequently Asked Questions
Can I pack a heated jacket in checked luggage?
The jacket itself can go in checked luggage once the battery is removed. The removed lithium-ion pack is a spare battery and must travel in carry-on baggage only.
Do I need airline approval for heated clothing batteries?
Only if a pack is rated above 100 Wh. Packs in the 100-160 Wh range need airline approval and are limited to two per person; over 160 Wh is usually not permitted on passenger flights.
How do I find the watt-hour rating on my battery?
Look for the Wh marking printed on the pack label. If only mAh and voltage are printed, convert amp hours to watt hours by multiplying voltage by amp hours (Wh = V x Ah), then check the figure against your airline's limit.
Can I carry spare heated-apparel batteries as product samples?
FAA guidance prohibits spare lithium batteries carried for further sale or distribution, including vendor samples. Confirm the arrangement with your airline before travelling and carry the specification sheet and UN38.3 test summary.
Bottom line: remove the battery, keep it in the cabin, protect the terminals and check the airline - the heated garment itself is the easy part.
If you need the specification sheet, the UN38.3 test summary or help confirming a pack rating before a trip, start with our support page or contact the team. You can also browse the current heated gloves range.
