Heathrow Airport power bank rules, 2026.
What the UK CAA allows and what British Airways enforces on the ground at LHR.
Same as the global standard.
The UK Civil Aviation Authority follows the ICAO global lithium-ion rules. Power banks up to 100 Wh travel in carry-on only. 100–160 Wh need airline approval, limit two. Over 160 Wh banned.
What the security line will ask.
LHR security will pull spare lithium batteries from checked bags during screening. Pack power banks in your carry-on so they’re ready to come out of your bag at the security tray. Most airlines flying from LHR — BA, Virgin Atlantic, Lufthansa, Air France — enforce the two-bank cap with no overhead storage and no in-seat charging.
What matters.
Under 100 Wh
UK CAA standard. Clutch Pro ≈18.5 Wh.
Two banks max
Aligned with BA, Lufthansa Group, and the ICAO framework.
Carry-on only
Never checked. LHR security will reroute spare lithium to carry-on.
15 colors. Pick yours.
The matte finish hides fingerprints, scuffs, and whatever happens after a long day.
Heathrow-ready in your pocket.
Clutch Pro sails through LHR security and clears every UK-bound airline’s rules.
Shop the Clutch ProFrequently asked
Is the Clutch Pro allowed on UK 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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