ea1181ae____Before_You_Fly___Passengers__Airline_approval_required
[Spare batteries] Spare fuel cell cartridges. No more than two spare fuel cell cartridges may be carried by passenger. Fuel cells containing fuel are permitted in carry-on baggage only. Fuel cells must be of a type that will not charge batteries when the portable electronic device is not in use and must be durably marked by the manufacturer, ‘APPROVED FOR CARRIAGE IN AIRCRAFT CABIN ONLY.’ Refuelling of fuel cells on board an aircraft is not permitted, although the installation of a spare cartridge is allowed. The airline’s approval is not required to carry spare fuel cell cartridges. However, the passenger must contact their airline prior to travel to obtain further information contained within the ICAO Technical Instructions. Travelling with portable electronic devices powered by fuel cells [Carry-on Baggage] Yes [Checked (hold) Baggage] Yes [On One's Person] Yes [Airline approval required] 
No
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Travelling with Spare Batteries | Before You Fly | Passengers
Airline approval required