If you have ever stood at a security checkpoint wondering whether your power bank was going to get confiscated, you are not alone. The rules around portable chargers and air travel have gotten more complicated in 2026, with major airlines tightening their policies beyond what the TSA alone requires. So can you bring a portable charger on a plane? Yes, but what you can bring, how many you can bring, and where it has to be stored now depends on which airline you are flying.
Here is everything you need to know before your next flight.
The Baseline Rule: FAA and TSA
Before getting into airline-specific policies, the foundation is set by the FAA and TSA, and it applies regardless of which airline you fly.
Portable chargers and spare lithium-ion batteries must always go in your carry-on bag. They cannot go in checked luggage. This is a hard rule with no exceptions. If you are asked to gate-check your bag, you are required to remove your power banks and bring them into the cabin with you.
On the watt-hour front, the baseline rules are:
Portable chargers rated at 100 Wh or less are permitted in carry-on bags without special airline approval. Chargers between 101 and 160 Wh require airline approval before you fly. Anything over 160 Wh is prohibited entirely on commercial flights.
Most portable chargers on the market fall well under 100 Wh. A 10,000 mAh charger is approximately 37 Wh. A 20,000 mAh charger is approximately 74 Wh. Both are within the limit without any issue.
American Airlines: Two-Charger Limit (Effective May 1, 2026)
American Airlines made one of the biggest policy changes of the year. Starting May 1, 2026, passengers are limited to two portable chargers per person, each rated at 100 Wh or less. But the capacity limit is only part of it.
Under the new policy, portable chargers must remain visible and within reach at all times. They cannot be stored in overhead bins. They cannot be recharged during the flight. And crew members are permitted to take additional action if they identify a charger that appears damaged or poses a concern.
If you are flying American, your power bank needs to be in the seat pocket, your personal item under the seat, or somewhere you can physically access it without getting up.
Delta Air Lines: Same Policy, Same Date
Delta matched American's policy almost exactly, also effective May 1, 2026. Two portable chargers maximum per passenger, each under 100 Wh, must remain accessible and not stored in the overhead bin. No recharging during flight.
Both airlines cited the growing number of lithium-ion battery incidents in aviation as the reason for the change. By limiting the number of chargers and keeping them within reach of the passenger, crew members are better positioned to respond quickly to any issue that might arise.
Southwest Airlines: One-Charger Limit (Effective May 1, 2026)
Southwest went even further than American and Delta. Starting May 1, 2026, Southwest passengers are limited to just one portable charger per person, rated under 100 Wh. Like the other carriers, it must be kept with you at all times and cannot be stored in the overhead bin.
If you are flying Southwest, the math is simple: one charger, under 100 Wh, within reach. That makes capacity and efficiency especially important. A 10,000 mAh charger like the SHAREPOWER or CHAMP 10K maximizes what you can carry within that single-charger allowance.
United and Other U.S. Carriers
As of mid-2026, United has not adopted a specific charger count cap beyond the FAA baseline. The TSA rule still applies across all carriers: 100 Wh or under in a carry-on, never in checked luggage. However, airlines can update their policies at any time, and the direction the industry is heading is clear. Checking your specific carrier's website before you fly is always the right move.
International Airline Policies
Can you bring a portable charger on a plane internationally? The short answer is yes in most cases, but the rules vary significantly by region and carrier, and some countries are stricter than the U.S.
Europe European carriers fall under EASA (European Union Aviation Safety Agency) guidelines, which align closely with the FAA on the 100 Wh carry-on rule. Budget carriers like Ryanair and EasyJet have historically imposed additional restrictions on power banks, including limits on capacity and requirements that they be kept in your personal item and accessible during the flight. If you are flying a European low-cost carrier, check their specific policy before you get to the gate.
China China's CAAC (Civil Aviation Administration of China) enforces some of the strictest portable charger rules in the world. Power banks must be carried in your carry-on, never checked, and are limited to 100 Wh per unit. Passengers are generally permitted a maximum of two power banks, and any charger without a clearly marked capacity rating may be confiscated at security. If you are flying into, out of, or within China, make sure your charger has its watt-hour rating visibly labeled on the device.
Japan Japanese carriers and the MLIT (Ministry of Land, Infrastructure, Transport and Tourism) follow a 100 Wh carry-on limit. Power banks are permitted in carry-on luggage only, and passengers are typically allowed up to two units under 100 Wh. Japan's aviation security is thorough, so having your charger's specs clearly visible is a good idea.
Australia Australia's CASA (Civil Aviation Safety Authority) follows the same 100 Wh threshold as the FAA. Power banks must be in carry-on luggage and are not permitted in checked bags. There is no national cap on the number of sub-100 Wh power banks, though individual airlines may impose their own limits.
Middle East Major carriers like Emirates, Etihad, and Qatar Airways follow IATA guidelines, permitting power banks under 100 Wh in carry-on luggage. These airlines generally do not impose a count limit beyond the baseline, but policies can vary on specific routes or in response to regional regulations. Always confirm with your carrier directly before an international trip.
The Universal Rule Regardless of where you are flying, one rule holds everywhere: portable chargers must go in your carry-on, never in checked baggage. A charger that is fine in your bag at home may be flagged at a foreign airport if it lacks a clear watt-hour label. If you are traveling internationally, make sure your charger has its capacity rating visibly printed on the device and keep it accessible throughout your journey.
Can I Bring a Portable Charger on a Plane If It Splits Into Two?
This is where things get interesting. The new two-charger limit raises a practical question for travelers who want to carry more capacity: can you bring a portable charger on a plane that functions as two separate batteries in one device?
The Nimble SHAREPOWER is exactly this. It is a 10,000 mAh power bank that magnetically splits into two independent 5,000 mAh modules, each with its own built-in USB-C cable. In Stack Mode, the two modules lock together and function as a single 10,000 mAh charger with up to 35W of output. In Share Mode, they snap apart and each operates independently at 20W.
SHAREPOWER is TSA and airline approved, and at approximately 37 Wh total, it sits well within the 100 Wh cap. It counts as one charger while giving you the flexibility of two. For travelers navigating the new two-charger airline limit, that distinction matters. You can keep one module for yourself and hand the other to a travel companion without using up your allotment, or use both modules to power multiple devices without sacrificing capacity.
The built-in cables on both modules also mean you are never searching for a cord at the bottom of your bag. The primary hub has a foldaway USB-C connector, and the secondary module has an integrated fabric USB-C cable, always attached and always ready.
How to Check Your Portable Charger's Watt-Hour Rating
Airline rules are based on watt-hours, but most power banks are labeled in milliamp-hours. To calculate watt-hours from mAh:
Multiply the mAh rating by the battery voltage (typically 3.7V for lithium-ion), then divide by 1,000.
A 10,000 mAh battery: 10,000 x 3.7 / 1,000 = 37 Wh. Well within the limit. A 20,000 mAh battery: 20,000 x 3.7 / 1,000 = 74 Wh. Also within the limit.
If the watt-hour rating is printed directly on your charger, that number is what TSA and airline staff will reference. Having it visible can save time at security.
Travel-Ready Chargers Built to Fly
Can you bring a portable charger on a plane? Yes. But not all chargers are equally suited for travel. Here is what to look for: a capacity under 100 Wh, compact dimensions, built-in or included cables, and certifications that confirm the product was designed and tested to meet safety standards. These three Nimble chargers check every box.
SHAREPOWER (10,000 mAh) The SHAREPOWER is the most travel-unique option in the lineup. It magnetically splits into two independent 5,000 mAh modules with built-in USB-C cables on both, so you never need a separate cord. It is TSA and airline approved, and at approximately 37 Wh, it sits well inside the 100 Wh limit. It counts as one charger while functioning like two, which makes it especially smart for travelers navigating the new two-charger limit on American and Delta.
CHAMP 10K (10,000 mAh) The CHAMP 10K is a no-frills travel essential. Compact enough to fit in a jacket pocket, it delivers up to 20W of fast charging for phones and tablets across two ports simultaneously. At roughly 37 Wh, it is well under the airline limit. If you want dependable, lightweight backup power without anything extra, this is the one.
CHAMP Stretch (10,000 mAh) The CHAMP Stretch takes convenience a step further with a built-in retractable USB-C cable, so there is never a cord to dig out of your bag. It is compact, fast-charging, and well within airline limits. For travelers who want to pack light and stay charged, the retractable cable alone makes it worth it.
The Simple Answer to Can I Bring a Portable Charger on a Plane
Yes, you can bring a portable charger on a plane, as long as it is in your carry-on, rated at 100 Wh or less, and you are within the two-charger limit on airlines like American and Delta that have adopted the new 2026 policy. Keep it accessible, do not put it in a checked bag, and check your specific airline's policy before you fly.
Explore the full lineup of Nimble portable chargers, all built from recycled materials and designed to go wherever you go.
