YES — Allowed in Carry-on Bags
Spare lithium-ion or lithium-metal batteries must be carried in carry-on baggage only. Protecting the terminals is required.
Can you bring lithium batteries on a plane?
Quick Answer
Yes — Lithium Batteries is allowed in carry-on bags by TSA. Spare lithium-ion or lithium-metal batteries must be carried in carry-on baggage only. Protecting the terminals is required.
Also known as: lithium ion batteries, rechargeable lithium
What is lithium batteries?
Lithium Batteries is a common item that passengers frequently pack when traveling. Often referred to as lithium ion batteries, rechargeable lithium, it is classified under the Electronics category by aviation security authorities. When preparing for a trip, understanding exactly what this item is and how it functions can help you determine the best way to pack it in compliance with Transportation Security Administration (TSA) regulations. Generally, guidelines for traveling with lithium batteries in your luggage. Making sure you properly identify the item before arriving at the airport checkpoint ensures a smoother screening process.
Allowed in Cabin
Spare lithium-ion or lithium-metal batteries must be carried in carry-on baggage only. Protecting the terminals is required.
Strictly Prohibited
Spare lithium batteries are prohibited in checked baggage holds due to cargo fire hazards.
Official TSA Rules & Reason
Spare lithium-ion or lithium-metal batteries must be carried in carry-on baggage only. Protecting the terminals is required.
Official TSA SourceTraveler Packing Tip
Keep lithium batteries in your carry-on bag so it stays safe, protected, and within arm's reach during your flight. Avoid checking high-value personal items.
Step-by-Step Packing Instructions for Lithium Batteries
- 1Check container size or battery specifications to verify lithium batteries meets TSA carry-on limits.
- 2Place lithium batteries in a protective case or clear pouch near the top of your carry-on bag for quick access.
- 3If lithium batteries features a power switch or heating element, ensure it is completely powered off or safety-locked to prevent accidental activation during travel.
- 4At the security line, remove lithium batteries from your main bag only if requested by officers or if it contains large electronics/liquids.
- 5Store your bag in the overhead compartment or under the seat in front of you once boarded.
TSA Security Screening Procedure
During security screening for lithium batteries, any device larger than a standard smartphone (such as laptops, tablets, or large camera equipment) must be removed from your carry-on luggage and placed in a dedicated screening bin with nothing underneath or on top. Power banks, spare lithium-ion batteries, and rechargeable devices must remain in your carry-on luggage and are strictly forbidden in checked baggage due to FAA cargo fire safety protocols. Turn off high-capacity battery units to prevent accidental activation during flight.
Federal Aviation & HazMat Regulations
Under Federal Aviation Administration (FAA) HazMat safety regulations (49 CFR § 175.10(a)(18)) and IATA Dangerous Goods Regulations, lithium-ion batteries powering lithium batteries are capped at 100 Watt-hours (Wh) per battery for standard carry-on. Spare batteries between 100 Wh and 160 Wh require explicit airline approval. Uninstalled lithium batteries are strictly prohibited in checked cargo holds because cargo fires involving lithium chemistries cannot be easily extinguished in flight.
Airline & International Rule Variations
While TSA establishes baseline security screening at U.S. airports, individual airlines reserve the right to enforce more stringent baggage policies for lithium batteries. Legacy U.S. carriers like Delta, United, and American Airlines generally align directly with TSA standards. However, ultra-low-cost carriers (such as Spirit or Frontier) and international airlines (including Ryanair, Lufthansa, and Emirates) strictly enforce cabin bag dimensions and weight limits (typically 7 kg to 10 kg total carry-on allowance). If traveling internationally, foreign aviation authorities like EASA (European Union) or CAA (United Kingdom) may have additional custom rules regarding electronics items.
Airline & Country Specific Baggage Checker
Select your airline or destination to verify tailored limits for Lithium Batteries.
Exceptions & Special Cases
Always consult with your airline or the TSA directly if you believe you qualify for a special exception for carrying lithium batteries.
International Considerations
When flying internationally, you must comply not only with U.S. TSA regulations but also with the aviation security rules of your destination country and any transit hubs. For lithium batteries, policies can vary significantly in regions like the European Union (governed by EASA) or the United Kingdom (CAA). Some countries impose stricter volume limits on liquids, absolute bans on specific electronics, or rigorous customs declarations for items in the Electronics category. Always check the official customs and aviation authority website of your arrival country before packing this item.
Alternative Options
For travelers looking to optimize their packing space, consider multi-purpose alternatives to lithium batteries. Travel-specific versions are often lighter, more compact, and explicitly designed to meet both TSA and international aviation standards seamlessly.
Frequently Asked Questions About Lithium Batteries
Is lithium batteries allowed on a plane in 2026?▼
Yes, lithium batteries is allowed in carry-on cabin baggage and not allowed in checked hold luggage according to official TSA regulations. Spare lithium-ion or lithium-metal batteries must be carried in carry-on baggage only. Protecting the terminals is required.
Can I put lithium batteries in my carry-on bag?▼
Yes, lithium batteries is fully permitted in your carry-on bag. Ensure it is packed safely and complies with security guidelines.
Can I pack lithium batteries in checked luggage?▼
No, lithium batteries cannot be checked in cargo baggage. Spare lithium batteries are prohibited in checked baggage holds due to cargo fire hazards.
What happens if security officers flag lithium batteries at the airport?▼
If a TSA officer flags lithium batteries during X-ray inspection, your bag will be pulled aside for manual inspection. The officer will inspect the item, potentially test it for explosive residue, and verify compliance. The final decision always rests with the TSA officer on duty.
Do international baggage rules for lithium batteries differ from TSA rules?▼
While U.S. TSA rules cover all domestic flights, foreign aviation agencies (such as EASA in Europe or CAA in the UK) may enforce slight variations for electronics items. Always verify the rules of your destination country and transit airports before embarking on international flights.
TSA Officer Discretion
The final decision rests with the TSA officer on whether an item is allowed through the security checkpoint. Rules and regulations can vary depending on international travel destinations or dynamic airport security alert levels.
Verified Travel Information
This document has been rigorously reviewed and verified by our travel reference editors. All statuses, notes, and guidelines are checked against live security feeds from the TSA (Transportation Security Administration), FAA (Federal Aviation Administration), and CBP (Customs and Border Protection).
Official Regulation Citations
49 CFR § 175.10(a)(18)
FAA Regulation for Lithium Batteries & Electronic Devices — Federal Aviation Administration (FAA)
This regulation mandates baggage safety constraints, hazardous materials classifications, or general prohibited carriage parameters for airline passengers flying within or into the United States.