Can You Bring a Power Bank on a Plane? TSA & Airline Rules in 2026

Yes, you can bring a power bank on a plane in carry-on luggage. The TSA and FAA allow lithium-ion power banks up to 100 watt-hours (Wh) per battery without airline approval. Banks between 100 Wh and 160 Wh require airline approval. Banks over 160 Wh are not permitted on passenger aircraft.

This guide covers the exact regulations, how to calculate your bank’s Wh rating, what to do if it’s too large, and which airlines have stricter rules than the FAA baseline.

The rule in one paragraph

Per the TSA, FAA, and IATA: lithium-ion batteries (the type used in nearly all power banks) must travel in carry-on luggage only, never checked. The hard cap is 100 Wh per battery for unrestricted carry. From 100 Wh to 160 Wh, you can carry up to 2 batteries with airline approval. Over 160 Wh, no passenger aircraft. Most consumer power banks fall well under 100 Wh.

How to calculate your power bank’s Wh rating

Watt-hours = milliamp-hours (mAh) × cell voltage (V) ÷ 1,000

For lithium-ion banks, cell voltage is 3.7 V. So:

5,000 mAh × 3.7 V ÷ 1,000 = 18.5 Wh ✅ Allowed
10,000 mAh × 3.7 V ÷ 1,000 = 37 Wh ✅ Allowed
20,000 mAh × 3.7 V ÷ 1,000 = 74 Wh ✅ Allowed
25,000 mAh × 3.7 V ÷ 1,000 = 92.5 Wh ✅ Allowed (close to limit)
27,000 mAh × 3.7 V ÷ 1,000 = 99.9 Wh ✅ Allowed (right at limit)
30,000 mAh × 3.7 V ÷ 1,000 = 111 Wh ⚠️ Needs airline approval
50,000 mAh × 3.7 V ÷ 1,000 = 185 Wh ❌ Not permitted

Most power banks have the Wh rating printed directly on the case. Look for a small stamp like “74Wh” or “Battery: 3.7V 20000mAh / 74Wh.” That’s the figure security cares about, not the marketing-sheet mAh.

Carry-on only, never checked

This is the rule most travelers miss. The TSA and FAA prohibit lithium-ion batteries in checked luggage because of fire risk in the cargo hold (which has fewer fire-suppression resources than the cabin). If a power bank is detected in checked luggage during screening, your bag will be opened, the battery removed, and you may face delays or fines.

The rule applies to:

Power banks (any size)
Spare laptop batteries
Spare camera batteries
Spare drone batteries
E-cigarettes and vapes (always carry-on)

Devices with batteries installed (laptops, phones, cameras, e-readers) are allowed in checked luggage as long as they’re powered off and protected from accidental activation, but most travelers carry these on board anyway.

Which airlines have stricter rules

A few airlines enforce tighter caps than the IATA 100 Wh standard. As of 2026:

Airline	Cap	Notes
Most US carriers (Delta, United, AA, Southwest)	100 Wh, up to 2 between 100-160 Wh with approval	Match TSA/FAA
Air Canada	100 Wh, up to 2 between 100-160 Wh with approval	Match TSA/FAA
British Airways, Lufthansa, KLM	100 Wh, 160 Wh with approval	Match IATA
China Eastern, Air China	20,000 mAh hard cap regardless of Wh	Stricter than IATA
Hong Kong Airlines	20,000 mAh; 2 banks max	Stricter than IATA
Singapore Airlines	100 Wh, max 20 spare batteries between phones, banks, and devices	Match IATA, count limit

For international travel, always check your specific airline’s lithium battery policy 48 hours before departure. Rules change.

What to do if your power bank is too big

You have three options:

Get airline approval in advance. Banks between 100 Wh and 160 Wh can fly with prior approval from your specific airline. Email or call the airline’s special-items desk 5+ days before travel. Approval is usually free but requires documentation of the bank’s Wh rating.
Buy a compliant bank. A 20,000 mAh (74 Wh) bank covers most travel needs and flies on every passenger airline worldwide. See our 20,000 mAh guide for picks.
Ship it ahead. Lithium-ion batteries can ship via FedEx and UPS Ground (not air) with hazmat declarations. Costs $20 to $40 domestically. Worth it for a $300+ portable power station you don’t want to lose.

What gets confiscated at security

The most common reasons a power bank is confiscated at TSA or international security checkpoints:

Wh rating not visible or worn off. Without proof it’s under 100 Wh, security may default to confiscating. Take a photo of the rating before the trip as backup.
Loose batteries without terminal protection. Spare batteries (cells, not full banks) need terminals taped or in original packaging to prevent short circuits.
Damaged or swelling banks. Any visible bulge, cracked case, or burn marks gets confiscated immediately.
Counterfeit / no-name brands without certification. Some checkpoints reject banks lacking UL, FCC, or CE markings.

Frequently asked questions

FAQ

Power bank airline rules FAQ

Can I bring a 10,000 mAh power bank on a plane?

Yes. A 10,000 mAh power bank at 3.7 V is 37 Wh, well under the TSA's 100 Wh limit. Pack it in carry-on, not checked luggage. There is no count limit at this size, so you can bring multiple. Most travelers carry 1 to 2 power banks plus their phone, laptop, and other electronics with no issue.

Can I bring multiple power banks on a plane?

Yes. The TSA does not enforce a hard count limit on power banks under 100 Wh. Most international airlines follow the same rule, with a few exceptions (Singapore Airlines caps total spare batteries at 20). For banks between 100 Wh and 160 Wh, you can carry up to 2 with airline approval. Over 160 Wh, no airline allows them on passenger aircraft.

Can I use my power bank during the flight?

Yes. There's no rule against using a power bank to charge devices during the flight. Some airlines ask you not to plug in lithium devices during takeoff and landing as a precaution, but in-flight use at cruise is normal and common. The bank itself does not need to be in airplane mode.

Is a 20,000 mAh power bank allowed on an international flight?

Yes, on most airlines. 20,000 mAh at 3.7 V is 74 Wh, under the IATA 100 Wh limit. Two airlines (China Eastern, Hong Kong Airlines) cap power banks at exactly 20,000 mAh regardless of Wh, but a 20,000 mAh bank still meets that cap. For other Asian carriers like Singapore Airlines, ANA, JAL, and Cathay Pacific, 20,000 mAh is fine.

Do power banks get x-rayed differently than other electronics?

No. Power banks go through the regular x-ray machine in your carry-on bag. You don't need to remove them separately like a laptop. Some international airports may ask you to remove banks for separate screening if their internal cells aren't visible on the initial x-ray. Have it accessible in case.

Can I bring a power station (300+ Wh) on a plane?

No. Portable power stations like the EcoFlow River 3, Jackery Explorer 1000, and Anker SOLIX C300 all exceed 100 Wh by a wide margin. They cannot fly on passenger aircraft. Ship them via ground freight or buy at the destination. For travel-sized power, stick to power banks under 100 Wh.

What if my power bank's Wh rating is worn off or unreadable?

Bring a screenshot of the manufacturer's product page showing the Wh rating, or the original packaging. Without proof of capacity, TSA agents may default to confiscation in ambiguous cases. Photographing the regulatory label before your first trip is good practice.

What to look for when buying a travel-friendly power bank

If you fly frequently, prioritize banks that:

Print the Wh rating in large, durable type on the case (not a sticker that peels)
Are clearly under 100 Wh (avoid borderline 26,000+ mAh banks)
Have UL or CE certification
Include pass-through charging (charges your phone while the bank itself is being recharged from a hotel outlet)

For a 100% airline-compliant pick that handles 4-5 phone charges or one MacBook charge, see our best 20,000 mAh power banks guide. For pocket-size daily carry, see best 10,000 mAh power banks.

Last reviewed: May 2026. Airline policies change; verify with your specific carrier 48 hours before travel.