How do you fly with lithium batteries?

Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. 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).



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Methods include: leaving the batteries in their retail packaging, covering battery terminals with tape, using a battery case, using a battery sleeve in a camera bag, or putting them snugly in a plastic bag or protective pouch.

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Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery.

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Damaged, defective or recalled lithium batteries must not be carried in carry-on or checked baggage if they are likely to be a safety concern by overheating or catching on fire.

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If these devices are packed in checked baggage, they should be turned completely off, protected from accidental activation and packed so they are protected from damage. Spare (uninstalled) lithium metal batteries and lithium ion batteries, electronic cigarettes and vaping devices are prohibited in checked baggage.

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Do airport detectors detect lithium batteries? Batteries are picked up very vividly by baggage scanner machines used in the airport security process, and they are diligently assessed by security.

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Portable chargers or power banks containing a lithium ion battery must be packed in carry-on bags. For more information, see the FAA guidance on portable rechargers.

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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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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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Pack all spare lithium batteries in carry on luggage only.
This is so that, in the unlikely event of a fire hazard caused by a short-circuit, the crew of the plane has easy access to the batteries.

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Just remember with lithium ion, you can carry four batteries under 100 watts on the airplane with you. You can't check them if they're loose. You can check them if they're in other devices. You can also take two up to 160 watt or sometimes one 300 watt battery with special permission.

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Can lithium batteries be detected by metal detectors? Of course! Lithium-ion batteries are made out of aluminum, among other metals. So yes, a metal detector would spot these batteries.

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Airport security staff tend to be very strict when removing dangerous items from luggage, with good reason. For example, TSA guidance is very clear: If prohibited items are found during security checks, they won't be returned to their owners.

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For lithium metal batteries the lithium metal content must not exceed 2 g and for lithium ion batteries the Watt-hour rating must not exceed 100 Wh. Devices in checked baggage must be completely switched off and must be protected from damage. Each person is limited to a maximum of 15 PED.

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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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Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only.

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Power Banks and Battery Packs
The airport staff will check to see that your power bank is under 100Wh (watt hours); if it isn't, or is up to 160Wh without prior approval from the airline, it will probably be confiscated. This isn't directly due to any notion that airport scanners damage batteries.

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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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