How should a magnetic power bank be packed for a flight?

Main answer · Wecent Editorial Team

Short answer: Pack it in your carry-on, never in checked luggage, protected from metal objects and from pressing against other items. Check the watt-hour rating on the label and your airline’s rules on capacity and in-flight use. Keep it easy to reach and out of overhead bins if your airline advises. Do not carry it if it is swollen or damaged.

Carry-on only

The Transportation Security Administration says power banks and spare lithium batteries must be packed in carry-on bags, and are not allowed in checked luggage. Canada’s airport screening authority also advises keeping batteries on you or in your carry-on.

Check the rating

Find the watt-hour rating on the label. The Canadian authority notes that most airlines follow international guidance that allows power banks up to 100 watt-hours without special approval, and between 100 and 160 watt-hours with airline approval. If the label shows only milliamp-hours, calculate watt-hours by multiplying volts by amp-hours. Ask your airline when in doubt.

Pack it safely

1. Put it in a pouch or case, away from keys, coins and other metal.
2. Do not let the magnet ring stick to metal objects in the bag.
3. Avoid pressure or crushing.
4. Keep the power bank off with the phone detached.
5. Keep it in a place you can reach.

Magnets and screening

Magnets in power banks are small, but keep them away from magnetic cards. Be ready to show the power bank at the checkpoint if asked, and follow the officer’s instructions.

In flight

Many airlines have rules about using power banks in flight, and some prohibit charging them on board. Check your airline’s policy and keep the power bank where you can see it.

Damaged units

Do not carry a swollen, hot or damaged power bank.

Quick summary

Carry-on only, pouch, check watt-hours, check airline rules and never take a damaged unit.

Checklist at the airport

Power bank in the carry-on pouch, watt-hours checked, airline policy read, phone detached, no damage or swelling, and easy to show at the checkpoint. If any item fails the check, leave the power bank at home or replace it at the destination. A few minutes of preparation avoids a confiscated item or delay at screening.

Sources checked on 24 Oct 2026: 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.