Yes—but a power bank must generally travel in your carry-on, not checked baggage. The rules depend on its watt-hour (Wh) rating and your airline. An ordinary wall charger without a built-in battery is different: the power-bank battery limits do not apply to it.
Power-bank rules at a glance
| Situation | Rule and scope |
|---|---|
| Where to pack it | Carry-on baggage only. Do not put a power bank in checked luggage. If your carry-on is taken at the gate to be loaded in the hold, remove the power bank and keep it with you in the cabin. FAA PackSafe |
| Up to 100 Wh | Under the FAA’s U.S. passenger guidance, spare lithium-ion batteries rated up to 100 Wh are generally allowed in carry-on baggage. Airlines may impose tighter limits. FAA passenger guidance |
| 101–160 Wh | Under FAA guidance, airline approval is required, and each passenger may carry no more than two spare batteries in this range. Confirm the operating airline’s rules before travel. FAA passenger guidance |
| Over 160 Wh | Forbidden on passenger aircraft under the FAA’s published guidance. FAA passenger guidance |
| 2026 IATA power-bank guidance | IATA’s passenger guidance revised for 2026 says a maximum of two lithium-ion power banks, each no more than 100 Wh. It also describes onboard restrictions. IATA says adoption and national implementation are not uniform, so check your airline and route. IATA lithium-battery guidance |
Check the power bank’s watt-hours
Look for a Wh rating printed on the power bank. Capacity in milliamp-hours (mAh) alone is not enough to determine its Wh rating: the battery voltage matters. The FAA formula is Wh = volts × amp-hours. Convert mAh to amp-hours by dividing by 1,000, then multiply by voltage. For example, the FAA gives 12 V × 8 Ah = 96 Wh.
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If the label does not show Wh, check the product documentation for the battery’s voltage and capacity. IATA’s 2026 passenger guidance says lithium-ion batteries should bear a Wh rating and notes that an operator may refuse carriage if staff cannot verify it from the battery or user documentation. IATA lithium-battery guidance
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What the U.S. and 2026 IATA guidance say
FAA thresholds for U.S. passenger travel
The FAA’s passenger guidance sets the broad U.S. thresholds for spare lithium-ion batteries: up to 100 Wh is generally permitted in carry-on baggage; 101–160 Wh requires airline approval and is limited to two such spare batteries per passenger; over 160 Wh is forbidden on passenger aircraft. The FAA says there is no stated quantity limit for under-100-Wh rechargeable batteries for personal use, but airlines can set stricter limits. FAA passenger guidance
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IATA’s 2026 power-bank guidance
IATA’s passenger document, revised for the 2026 regulations and dated March 31, 2026, says passengers are limited to a maximum of two lithium-ion power banks not exceeding 100 Wh each. Its table treats power banks above 100 Wh as forbidden. IATA also explains that airlines may adopt newer restrictions ahead of uniform national implementation; the guidance itself is not a universal regulation. IATA lithium-battery guidance
These are not interchangeable statements of one settled worldwide rule. Apply the rules of the country and airline governing your itinerary, and check the operating carrier’s current policy before departure. The airline may be stricter than the FAA baseline or may have adopted IATA’s newer measures.
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Pack it safely—and remove it if your bag is gate-checked
- Keep the power bank in your cabin bag, where it remains accessible. Do not place it in checked luggage.
- If the airline takes your carry-on at the gate or planeside to put it in the hold, remove the power bank first and carry it into the cabin. FAA PackSafe
- Protect the power bank from damage and prevent its terminals from contacting metal or other conductive items. IATA advises using original packaging, covering terminals with tape, or using a protective pouch. IATA lithium-battery guidance
- Do not travel with a swollen, punctured, or otherwise damaged power bank. If you are uncertain whether a damaged or recalled battery is safe to carry, contact the airline before travel.
Can you use or recharge a power bank on the plane?
IATA’s passenger guidance revised for 2026 says not to recharge a power bank from the aircraft’s power supply, not to store it in an overhead locker, and not to use it to power another device during taxi, take-off, or landing. Its operator guidance describes onboard recharging as prohibited and recommends that passengers not use power banks to recharge other portable electronic devices onboard. IATA passenger guidance · IATA operator guidance
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- Detachable Cable for Multiple Devices: Unlike a standard portable charger with built in cable that becomes useless if the cord breaks, INIU's 0.4ft detachable braided USB-C cable can be swapped anytime to save your investment. It effortlessly transforms into a versatile travel charger for multiple devices, ensuring your family or group travelers always have a reliable portable charger for all cell phones to keep everyone connected without carrying messy cords.
- Airline-Safe Travel Essentials: This TSA-compliant, flight safe power bank provides nearly 2 full charges for your smartphone, making it the perfect battery pack flight safe for business trips, cruise vacations, and airplane travel essentials. Beyond flights, it empowers campers, hikers, and outdoor users with ultimate camping essentials and road trip essentials—so you can explore freely without battery anxiety, making it ideal gifts for travelers women and men.
- Trusted Emergency Backup: As the SAFE Fast Charge Pro trusted by over 38 million users, we ensure the safest charging with the highest-grade materials. When unexpected storms or hurricanes strike, it acts as a lifeline—providing a dependable power outage battery backup and emergency phone charger for emergency users.
Wall chargers and portable chargers are not the same
A conventional wall adapter and cable with no battery built in are ordinary accessories, not power banks. The power-bank Wh limits do not apply to a charger that contains no battery. A portable charger, battery charging case, or other charging device with a lithium battery is treated as a spare battery and is subject to the applicable carry-on, capacity, and airline rules. The FAA explicitly includes external battery chargers containing lithium-ion batteries in its spare-battery guidance. FAA PackSafe
Battery rules do not settle general baggage-size limits or other airline restrictions for accessories, so check the carrier’s baggage policy as well.
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What to do if a battery overheats
Lithium-ion batteries can overheat and enter thermal runaway after damage, overheating, water exposure, overcharging, inadequate protection, or a manufacturing defect, according to the FAA. Damaged or recalled batteries likely to spark or generate dangerous heat must not be carried unless they have been removed or otherwise made safe. If a power bank or device becomes hot, swells, smokes, or burns during a flight, notify the cabin crew immediately. FAA passenger guidance
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