Can I Take Power Tool Batteries On A Plane. For example a 50 Wh battery can deliver one watt of power over 50 hours or 5W of power for 10 hours. The US and UK have implemented new travel requirements that restrict the carriage of electronic devices larger than a smartphone in the cabin.

The only AA battery that you cant pack in checked luggage is a long life AA lithium metal battery. Lithium Ion batteries 100-160Wh rating. You can bring lithium-battery powered devices and spare lithium batteries as carry-on items only with batteries individually protected to prevent short circuits.
However when it comes to battery and engine-powered tools there are some other things to keep in mind.
Flying with Power Tools. This size covers the largest aftermarket extended-life laptop batteries and most lithium ion batteries for professional-grade audiovisual equipment. The best way to take a drill on a plane is to check the drill in with checked luggage and to carry the battery in your. For more information see the FAA regulations on batteries.

