Travel safety
Can you take a power bank on an airplane? Check watt-hours first
In the United States, the FAA treats power banks as spare lithium batteries. They belong in carry-on baggage, and the watt-hour rating determines whether airline approval is needed. Airlines and other countries may apply additional rules, so verify before every trip.
Carry-on only is the starting rule
FAA guidance says spare lithium batteries—including power banks and portable chargers—must be carried in the cabin and cannot be placed in checked baggage. Cabin crews can respond more quickly if a battery overheats or smokes.
If a carry-on bag is checked at the gate, remove the power bank first and keep it with you in the cabin.
Find the watt-hour rating
Look for Wh printed on the power bank. If only voltage and amp-hours are shown, watt-hours equal volts multiplied by amp-hours. For milliamp-hours, divide by 1,000 before multiplying by voltage.
Use the manufacturer's printed watt-hour rating whenever available because internal voltage and marketing capacity can be misunderstood. A label that is missing or unreadable may create problems during airline checks.
Know the FAA size categories
Current FAA guidance allows rechargeable lithium batteries from 0–100Wh on passenger aircraft for personal use. Batteries above 100Wh and up to 160Wh require air-carrier approval, and passengers may carry no more than two spare batteries in that larger category. Batteries above 160Wh are generally forbidden on passenger aircraft outside specific mobility-device rules.
An airline can have stricter quantity or handling requirements. International rules can also differ, so check the operating airline and each country on the itinerary.
- Keep the manufacturer's capacity label visible.
- Protect the power button from accidental activation.
- Cover exposed terminals or keep the bank in a protective pouch.
- Do not carry a swollen, damaged, leaking, or recalled battery.
Choose travel capacity by the devices you carry
Estimate how many phone, tablet, or accessory recharges you need, then balance capacity against weight and airline limits. Conversion losses mean the usable output is lower than the number printed in milliamp-hours.
Also compare USB-C Power Delivery support, port count, charging speed for the bank itself, a clear watt-hour label, and warranty support. Avoid relying on capacity claims from an untraceable seller.
Decision table
Match the answer to your situation
| Situation | Practical choice | Why |
|---|---|---|
| Power bank marked 100Wh or less | Carry it in cabin baggage | FAA guidance permits it for personal use without airline approval. |
| Power bank over 100Wh through 160Wh | Ask the airline before travel | Approval is required and the larger-spare limit is two. |
| No readable Wh rating or visible damage | Do not rely on it for the trip | The airline may reject an unverified or unsafe battery. |
Sources
Check the official guidance
Rules and product capabilities can change. Use these primary sources to confirm current information before acting.
Optional shopping links
Compare relevant products
As an Amazon Associate I earn from qualifying purchases. These links may earn a commission at no extra cost to you. Research and editorial order are independent of affiliate payments.