Why Can T You Have Lithium Batteries On A Plane. For more information see the FAA regulations on batteries. Yes according to TSA you can bring batteries on planes.
Well you can actually bring two batteries on the plane with you that are larger than 100 watt-hours but smaller than 160 watt-hours. The reason for this is that in the cabin your airline flight crew can better monitor conditions and if a fire does occur they can easily have access to the batteries. However the most recent study has shown that the systems dont actually have the power to put out the flames caused by an overheated lithium battery commonly found in laptops cell phones and a wide range of other devices when combined with other flammable substances such as gas in an aerosol can or cosmetics.
Now that isnt to say there isnt the potential for safety problems to occur especially when flying or when lithium-ion batteries dont have protections.
Spare uninstalled lithium ion and lithium metal batteries must be carried in carry-on baggage only. Until the jet is found and the crash explained the presence of the lithium batteries cant be ruled out as a possible cause. These mainly occur when the lithium-ion battery is overcharged kept at too high a temperature or goes through mechanical abuse such as being dropped or tossed around. The reason for this is that in the cabin your airline flight crew can better monitor conditions and if a fire does occur they can easily have access to the batteries.
