Global Entry, customs, and your power bank.
Global Entry handles immigration. Power bank rules come from the country and the airline.

Skips the immigration line, not security.
Global Entry is a US Customs and Border Protection program. It expedites immigration when you arrive in the US, and includes TSA PreCheck benefits domestically. It has no effect on international security screening when you depart from foreign airports.
Country and airline rules.
Each country’s aviation authority sets its own power bank rules — almost all now follow the ICAO 100 Wh framework adopted March 27, 2026. Individual airlines layer their own caps and in-flight use rules on top.
The practical version.
Same global standard
100 Wh in carry-on works everywhere.
Check the airline
Per-bank caps differ — Emirates 1, most others 2.
Carry-on, always
Lithium batteries are never allowed in checked baggage anywhere.
15 colors. Pick yours.
The matte finish hides fingerprints, scuffs, and whatever happens after a long day.
One charger for every passport stamp.
Clutch Pro’s ≈18.5 Wh sails through TSA, EU, UK, Japan, Singapore, UAE, Australia security every time.
Shop the Clutch ProFrequently asked
Is the Clutch Pro allowed on international flights?
Yes. The Clutch Pro is approximately 18.5 Wh (5,000 mAh × 3.7V), well under the 100 Wh carry-on limit every major airline uses.
Can I put a power bank in checked luggage?
No. Lithium-ion batteries must always travel in carry-on luggage. This is an FAA, EASA, CAA, and ICAO rule — no airline allows it.
How do I convert mAh to Wh?
Wh = (mAh ÷ 1000) × voltage. For lithium-ion power banks, voltage is typically 3.7V. So 5,000 mAh ≈ 18.5 Wh, 10,000 mAh ≈ 37 Wh, 27,000 mAh ≈ 100 Wh.
What if my power bank is over 100 Wh?
Power banks between 100–160 Wh require airline approval and are limited to two per passenger. Anything over 160 Wh is banned from passenger aircraft.
Reviewed by The Clutch Team · June 2026
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