Exact 100 Wh boundary: wording such as “under 100 Wh” needs airline confirmation for a bank labelled exactly 100 Wh.
Check a flight on Cathay Pacific →
- Power banks per passenger
- 2
- Over 100 to 160 Wh
- Not accepted above 100 Wh — interpretation; confirm with airline
- Recorded policy effective from
- 30 Mar 2026
- Checked baggage
- Power banks stay in cabin baggage
Carry, use and store
- Cabin baggage: protect terminals and follow crew storage instructions
- Charging a device from it: not allowed
- Charging it from seat power: not allowed
- Overhead bin: not allowed
- Checked bag: not allowed
Read the airline’s wording
Use of and recharging power banks onboard is not permitted at any time during the flight.
Where interpretation is involved
- approval 100 160: Cathay lists power banks among spare batteries, and says spare lithium batteries must be under 100 Wh. We read this as: power banks over 100 Wh are not accepted.
Conditions to check
- Extra power banks are confiscated at Hong Kong International Airport.
- Power banks must stay in cabin baggage under the seat in front.
From 1 January 2027
IATA’s standard changes the over-100 Wh allowance. We have not verified this airline’s implementation for every future flight. Check the scope of the 2027 change.
Official sources
- cathaypacific.com ↗ · checked 25 Oct 2026
- cathaypacific.com ↗ · checked 27 Oct 2026
Archived evidence and its limits
These dated records may be page captures or curated excerpts. A text fingerprint identifies the saved text; it does not prove that every rule interpretation is correct. This is not an independent audit.
- cathaypacific.com ↗ · saved 2026-10-25 ·
80657d3b9419 - cathaypacific.com ↗ · saved 2026-10-25 ·
0430792a2cad
Ordinary power banks only. No model-level recall verification or medical-device clearance. Help correct this record.