Can batteries go in suitcase when flying?

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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lithium metal and lithium ion/polymer batteries are prohibited in checked baggage—this includes external battery packs. Electronic cigarettes and vaporizers are also prohibited in checked baggage. “Checked baggage” includes bags checked at the gate or planeside.

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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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Items that are not allowed in checked luggage
  • Aerosols (in most cases) ...
  • Any device containing lithium metal or lithium-ion batteries. ...
  • Bug spray. ...
  • Christmas crackers. ...
  • Compressed gases. ...
  • Corrosive or oxidizing chemicals. ...
  • Cremated remains. ...
  • Emergency Position-Indicating Radio Beacons.


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When a carry-on bag is checked at the gate or at planeside, all spare lithium batteries and power banks must be removed from the bag and kept with the passenger in the aircraft cabin. The battery terminals must be protected from short circuit.

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Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery. Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery. These limits allow for nearly all types of lithium batteries used by the average person in their electronic devices.

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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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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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The battery voltage must not exceed 12 volts and the battery watt hour rating must not exceed 100 watt hours.

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Fire Hazards Lithium batteries can overheat and ignite under certain conditions, posing a fire hazard on aircraft. These fires can be challenging to extinguish and may cause severe damage to the airplane and its passengers.

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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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Damaged or recalled batteries and battery-powered devices, which are likely to create sparks or generate a dangerous evolution of heat must not be carried aboard an aircraft (e.g. carry-on or checked baggage) unless the damaged or recalled battery has been removed, or otherwise made safe.

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Why aren't power banks allowed in checked-in baggage but are allowed in hand-baggage? Power banks are basically large batteries and are made of Lithium. These batteries have tendency to bulge and burn/combust or sometimes even explode. If this happens inside the cargo then no one is there to handle it .

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In summary: Power banks are allowed on planes in carry on bags only. Power banks are not allowed in checked luggage / cargo luggage. You can bring power banks up to 27,000 mAh on most passenger aircraft.

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Most likely nothing will happen. Generally at worst if your bag is chosen for inspection and it's found they may throw it out.

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A: The bags are scanned for security, not specifically for lithium batteries. If you leave a lithium battery in your bag it will travel with you. It is safer for the battery to be in the cabin so that if a thermal runaway occurs the cabin crew can deal with it.

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If you need assistance with screening, you may ask for a Passenger Support Specialist or a Supervisory TSA Officer. Devices containing lithium metal or lithium ion batteries must be carried in carry-on baggage. Most other consumer electronic devices containing batteries are allowed in carry-on and checked baggage.

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How Does TSA Detect Lithium Batteries? The answer lies in the power of X-rays! Through a process called X-ray absorption, TSA agents are able to identify lithium-ion batteries and remove them for further inspection.

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