This category consists of mobility aids powered by one of three different types of batteries, non-spillable wet batteries, nickel-metal hydride batteries or dry batteries.
Non-spillable wet batteries.
Wet cell batteries can be considered as non-spillable if they can withstand the vibration and pressure differential tests described in IATA DGR, without leaking of battery fluid.
A passenger may carry a maximum of one spare wet, non-spillable battery.
Nickel-metal hydride batteries.
Nickel-metal hydride batteries or nickel-metal hydride battery-powered devices, equipment or vehicles having the potential of a dangerous evolution of heat are not subject to these Regulations (DGR) provided they are prepared for transport to prevent:
-a short circuit (e.g., in the case of batteries, by the effective insulation of exposed terminals; or, in the case of equipment, by disconnection of the battery and protection of exposed terminals)
-unintentional activation.
A passenger may carry a maximum of two spare nickel-metal hydride batteries.
Dry batteries.
Examples of such batteries are alkali-manganese, zinc-carbon and nickel-cadmium batteries. Any electrical battery or battery-powered device, equipment or vehicle having the potential of a dangerous evolution of heat must be prepared for transport to prevent:
-a short circuit (e.g., in the case of batteries, by the effective insulation of exposed terminals; or, in the case of equipment, by disconnection of the battery and protection of exposed terminals)
-unintentional activation
A passenger may carry a maximum of two spare dry batteries.
All removed and spare batteries must be carried in strong, rigid packaging and must only be carried in the cargo compartment.