Can I Carry Batteries On An Airplane. Car batteries wet batteries or spillable batteries are prohibited from both carry-on and checked baggage unless they are being used to power a scooter or wheelchair. However there are limits as to the quantity and size of the batteries.

These 160 watt-hour batteries must be carried on. Dry batteries your common. One spare battery not exceeding 300 watt hours or two spare batteries not exceeding 160 watt hours each are permitted in carry-on bags.
Allowed in carry-on baggage in equipment or spares as well as in checked baggage.
What Batteries are Not Allowed on Airplanes. - Dry Cell Alkaline Batteries. This is the official FIA information on carrying this type of battery Pack Safe. If you need to pack a spare battery for a scooter or wheelchair you must advise the aircraft operator so that the battery can be properly packaged for air travel.
