What should I do with my power bank if my carry-on bag is gate-checked?

Main answer · Wecent Editorial Team

Short answer: Take the power bank out of the bag before you hand it over, and keep it with you in the cabin. The FAA says that when a carry-on bag is checked at the gate, all spare lithium batteries and power banks must be removed and kept with the passenger. Protect the terminals from short circuit, and check your airline’s own limits.

The rule

The Federal Aviation Administration states that spare lithium batteries, including power banks, must be carried in carry-on baggage only. When a carry-on bag is checked at the gate or at planeside, all spare lithium batteries and power banks must be removed from the bag and kept with the passenger in the aircraft cabin. The terminals must be protected from short circuit.

What to do

1. Before you reach the gate, pack the power bank and spare batteries in one easy place, such as an outer pocket or a small pouch.
2. When told that the bag will be gate-checked, take out the power bank and spare batteries.
3. Protect the terminals. Keep it in its retail packaging, in a protective pouch or sleeve, or tape over exposed terminals.
4. Keep it with you in your personal item or in your pocket during the flight.
5. Do not put it in the checked or gate-checked bag, even for a short time.
6. Ask the staff if you are unsure.

Also keep in mind

• Size limits. The FAA states a limit of 100 watt-hours for most spare batteries without airline approval. Check the rating on your power bank.
• Airline rules. Many airlines have stricter rules, such as a limit on the number of power banks or on use during the flight. Check yours before you travel.
• Damaged batteries. Do not carry swollen or damaged power banks.
• Canada. Canadian security guidelines also cover batteries in carry-on. See CATSA for details.
• Devices. Laptops and phones with batteries installed have their own rules, so check before packing them in a bag that may be gate-checked.

Tips for next time

Pack electronics and power banks in a separate pouch that you can quickly move. Put a note in the bag as a reminder.

If a battery overheats

Tell the crew at once.

Quick summary

Remove it, protect it and keep it with you. Check your airline’s rules.

Sources checked on 24 Oct 2026: FAA PackSafe: Lithium batteries; TSA: Power banks; CATSA: Guidelines for batteries.

Where this answer says to confirm with Wecent, the detail is not published on the product page and has to come from the datasheet or the factory. General facts come from the regulators, standards bodies or device makers named in the text.