Do airlines check batteries?

Both the batteries and the devices using them are allowed in carry-on and checked baggage. Because there is no clear information on the accepted size, make sure to check with your chosen airline if you have an abnormal-size battery. In that case, you might be required to put the battery in checked baggage.



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Checked Bags: No
With airline approval, passengers may also carry up to two spare larger lithium ion batteries (101–160 Wh) or lithium metal batteries (2-8 grams). This size covers the larger after-market extended-life laptop computer batteries and some larger batteries used in professional audio/visual equipment.

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Checked Bags: Yes in the most common sizes: AA, AAA, C, D, button cell, 9-volt, etc. Batteries must be protected from damage and creating sparks or a dangerous evolution of heat. For more information, see the FAA regulations on batteries. For more prohibited items, please go to the 'What Can I Bring?'

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They are not allowed in checked baggage, reason being that if for some reason they overheat and catch fire, it is not as easy to control in the cargo area as on board. Flight attendants are trained how to control an overheating lithium ion battery in the passenger compartment.

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If you also intend to bring some spare batteries, typically you have to put them into your carry-ons. Checked baggage is vulnerable to rough handling or temperature changes. According to the TSA, you can bring up to: Two large lithium-ion batteries, from 101 – 160 Wh.

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Spare (uninstalled) lithium metal batteries and lithium ion batteries, electronic cigarettes and vaping devices are prohibited in checked baggage. They must be carried with the passenger in carry-on baggage.

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These are the batteries we commonly use at home (AAA, AA…). They are allowed on board in both checked and carry-on baggage whether or not they are rechargeable.

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A dry AA(A) battery (type Alkaline, NiMh, NiCd,…) for personal small items such as a pocket torch or a radio are allowed as long as they are inside the device or enclosed in a strong package.

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What can happen if I accidentally forgot some portable electronics that use lithium batteries in my check in bag? Generally nothing happens. You can carry most electronic devices with installed lithium batteries in checked luggage. You cannot carry loose batteries or ones in external chargers.

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Except for spare (uninstalled) lithium batteries, all the batteries allowed in carry-on baggage are also allowed in checked baggage; however, we recommend that you pack them in your carry-on bag whenever possible.

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Good news! Most are allowed in carry-on or checked bags depending on the type of product and if they are battery operated. Battery operated toys that use traditional non-rechargeable batteries (AA, AAA, etc.) can go in checked or carry-on bags.

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Portable electronic devices containing non-spillable batteries, must be 12 V or less and 100 Wh or less. A maximum of 2 spare batteries may be carried.

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For example, flyers often wonder if a 20000mah power bank is allowed on flight. As 20000mah makes for less than 100 watt-hours, it can be carried in cabin luggage.

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Most consumer personal electronic devices containing batteries are allowed in carry-on and checked baggage, including but not limited to cell phones, smart phones, data loggers, PDAs, electronic games, tablets, laptop computers, cameras, camcorders, watches, calculators, etc.

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Quantity limits: None for most batteries — but batteries must be for use by the passenger. Batteries carried for further sale or distribution (vendor samples, etc.) are prohibited. There is a limit of two spare batteries per person for the larger lithium ion batteries described above (101–160 watt hours per battery).

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