If you are flying with a phone, tablet, camera, or laptop, a power bank belongs in your carry-on bag—not in checked luggage. The practical question is whether its watt-hour (Wh) rating fits the airline rules.
Short answer: Under U.S. FAA guidance, spare lithium-ion batteries and power banks rated at 100Wh or less are generally permitted in carry-on baggage. Batteries from 101Wh to 160Wh require airline approval, and batteries above 160Wh are not permitted on passenger aircraft. Airlines and countries can impose additional rules, so always check your carrier before departure.
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Quick carry-on checklist
- Keep every power bank in your carry-on bag.
- Check the label for its Wh rating before you leave for the airport.
- Do not travel with a swollen, damaged, recalled, or overheating battery.
- Use a pouch or separate pocket so loose metal objects cannot contact the ports.
- Check your airline’s policy, especially when carrying more than one battery or any pack above 100Wh.
Why airlines use watt-hours, not just mAh
mAh measures battery capacity, while Wh measures stored energy. The usual conversion is:
Wh = (mAh ÷ 1,000) × nominal voltage
A 10,000mAh power bank using 3.7V cells is about 37Wh. A 20,000mAh pack using 3.6V cells is about 72Wh. These are helpful estimates, but the manufacturer’s printed Wh label is the value to rely on at the airport.
Can a 20,000mAh power bank go on a plane?
Usually, yes. Many 20,000mAh models are around 72Wh to 74Wh, which is below the 100Wh threshold. But capacity labels are not interchangeable: check the Wh value printed on your exact model. For help choosing capacity for your trip, see our guide to how much power-bank capacity you need.
Five travel-ready power banks
Each option below has a stated capacity below 100Wh. That makes it a practical carry-on choice under the FAA’s standard threshold, subject to your airline’s current policy and the condition of the battery.
| Best for | Product | Key specifications |
|---|---|---|
| Everyday carry | Anker Nano Power Bank A1259 | 10,000mAh, 30W USB-C, built-in USB-C cable, color display |
| USB-C and Lightning devices | Belkin BoostCharge Plus 10K BPB006 | 10,000mAh, 23W, integrated USB-C and Lightning cables |
| Laptop charging | UGREEN Nexode 20K 130W | 20,000mAh / 72Wh, 100W maximum single-port output, three ports, TFT display |
| Outdoor travel | Nitecore NB20000 Gen3 | 20,000mAh / 72Wh, 22.5W, dual USB-C, IPX5 rating, 291g |
| Maximum energy under 100Wh | Goal Zero Sherpa 100PD | 95Wh, 100W USB-C output, 15W wireless charging |
1. Anker Nano Power Bank A1259: best everyday carry
The Anker Nano A1259 is the simplest choice when you want a compact 10,000mAh bank with a built-in USB-C cable. Its 30W USB-C capability is useful for compatible phones and small devices, and its roughly 37Wh class is comfortably below the 100Wh threshold.
Check the Anker Nano Power Bank A1259 on Amazon
2. Belkin BoostCharge Plus 10K BPB006: best for mixed phone cables
Belkin’s BPB006 combines integrated USB-C and Lightning cables in one 10,000mAh travel bank. It is useful when you carry an iPhone with Lightning accessories or travel with more than one charging standard and want fewer loose cables.
Check the Belkin BoostCharge Plus 10K on Amazon
3. UGREEN Nexode 20K 130W: best for laptop charging
The UGREEN Nexode 20K stores 72Wh and provides up to 100W from its primary USB-C port. It is the pick here for travelers who need to charge a compatible laptop as well as a phone or tablet. Its capacity remains below 100Wh, but it is heavier than a 10,000mAh bank.
Check the UGREEN Nexode 20K 130W on Amazon
4. Nitecore NB20000 Gen3: best for outdoor durability
The Nitecore NB20000 Gen3 combines a 72Wh capacity with a 291g carbon-fiber-composite body and IPX5 water resistance. It suits travelers who also hike, cycle, or spend time outdoors and prioritize lower weight for a 20,000mAh bank.
Check the Nitecore NB20000 Gen3 on Amazon
5. Goal Zero Sherpa 100PD: best maximum capacity under 100Wh
The Goal Zero Sherpa 100PD is rated at 95Wh—close to, but still below, the standard 100Wh threshold. It offers up to 100W USB-C output and 15W wireless charging. Because it sits close to the limit, keep its label accessible and confirm your airline’s policy before departure.
Check the Goal Zero Sherpa 100PD on Amazon
Pack a power bank safely
Store it where you can reach it, keep the ports protected from keys and coins, and stop using it if it is damaged, swollen, unusually hot, or shows other signs of failure. For broader safety guidance, read our power-bank safety guide.
Before you fly
- Read the Wh rating printed on the power bank.
- Place it in your carry-on, not checked luggage.
- Review your airline’s battery policy before travel—particularly for 101Wh to 160Wh batteries.
- Bring a compatible cable and avoid using a damaged power bank.
Frequently asked questions
Are power banks allowed in checked baggage?
No. Treat a power bank as a spare lithium-ion battery and keep it in carry-on baggage.
Is a 20,000mAh power bank allowed on a plane?
Many are. A typical 20,000mAh model is around 72Wh to 74Wh, but you should check the Wh label on your exact unit and your airline’s policy.
Can I use a power bank during a flight?
Many airlines allow charging personal devices, but cabin-crew instructions always take priority. Do not use a power bank that is hot, damaged, or swollen.
What is the maximum power-bank size for carry-on travel?
Under FAA guidance, 100Wh or less is generally allowed in carry-on baggage. Batteries from 101Wh to 160Wh need airline approval; batteries above 160Wh are not permitted on passenger aircraft.
Bottom line
Yes, you can bring a power bank on a plane when you keep it in your carry-on and verify its Wh rating. For most travelers, a labeled 10,000mAh or 20,000mAh bank is a practical choice. If you need laptop power or capacity close to 100Wh, check the airline’s policy before your trip. You can also compare power banks for laptops if charging a computer is part of your travel plan.
Sources: FAA lithium-battery guidance; manufacturer specifications for Anker A1259, Belkin BPB006, UGREEN Nexode 20K 130W, Nitecore NB20000 Gen3, and Goal Zero Sherpa 100PD.