Cell phones, laptop, camera, smart phones, PDAs, games, tablets, watches, etc.
Most consumer personal electronic devices containing batteries are allowed in carry-on and checked baggage, including but not limited to cell phones, smart phones, PDAs, electronic games, tablets, laptop computers, cameras, camcorders, watches, calculators, etc. This covers typical dry cell batteries including lithium metal and lithium ion batteries for consumer electronics (AA, AAA, C, D, button cell, camera batteries, laptop batteries, etc.)
Quantity limits: None except that larger lithium ion batteries and spare nonspillable wet (gel cell, absorbed electrolyte) batteries are limited to two per person. For size restrictions on lithium metal, lithium ion, and nonspillable wet (gel cell, absorbed electrolyte) batteries, see separate "Spare batteries" entries in this table.
Spare batteries must be protected from damage and short circuit.
Spare lithium metal and lithium ion batteries are prohibited in checked baggage.
See the regulation: 49 CFR 175.10(a)(18)
Tip: To learn more about lithium batteries, their restrictions, and how to tell what size they are, go to http://SafeTravel.dot.gov
View our illustrated guide on Airline Passengers and Batteries.