Are Batteries Allowed In Checked In Luggage? | Pack Smart

Most loose batteries and portable power banks are strictly prohibited in checked luggage due to fire safety risks, requiring placement in carry-on bags.

Navigating airport security and packing regulations can feel like a puzzle, especially when it comes to electronics and their power sources. Understanding where your batteries belong—checked luggage or carry-on—is essential for a smooth journey and compliance with safety rules.

The Core Rule: Why Batteries Can Be Tricky

The primary concern with batteries in air travel centers on fire safety. Certain battery types, particularly lithium-ion, pose a risk of “thermal runaway,” a condition where an internal short circuit or damage leads to uncontrolled heat generation and potential fire. In the pressurized environment of an aircraft cargo hold, such an event can be difficult to detect and extinguish, making strict regulations necessary.

Airlines and regulatory bodies, like the Federal Aviation Administration (FAA) and the Transportation Security Administration (TSA), have established clear guidelines to mitigate these risks. These rules differentiate between battery chemistries, their size, and whether they are installed in a device or carried as spares.

Lithium-Ion Batteries: The Strict Rules

Lithium-ion batteries power many of our essential travel gadgets, including laptops, smartphones, tablets, cameras, and portable power banks. Due to their higher energy density and associated fire risk, these batteries are subject to the most stringent rules.

• Carry-On Only: All spare lithium-ion batteries and portable power banks (which are considered spare batteries) must be packed in your carry-on luggage. They are strictly forbidden in checked bags.
• Watt-Hour (Wh) Limits:
  1. Up to 100 Wh: Most consumer lithium-ion batteries (e.g., smartphone, small tablet, standard laptop batteries) fall within this limit. You can carry a reasonable number for personal use in your carry-on without airline approval.
  2. 101-160 Wh: Larger laptop batteries, professional camera batteries, or some medical device batteries may fall into this range. You need airline approval to carry these in your carry-on, and there’s typically a limit of two spare batteries per passenger. They are still prohibited in checked luggage.
  3. Over 160 Wh: Batteries exceeding 160 Wh are generally prohibited from air travel, both in carry-on and checked bags, unless they are installed in specific mobility aids and have airline approval.
• Terminal Protection: Individual batteries must be protected from short circuits. This means keeping them in their original retail packaging, placing them in separate plastic bags or protective pouches, or taping over exposed terminals.

According to the TSA, lithium-ion power banks must be stored in carry-on bags and are strictly prohibited in checked luggage to prevent potential fire hazards in the cargo hold.

Alkaline & NiMH Batteries: More Flexibility

Standard household batteries, such as AA, AAA, C, D, and 9-volt alkaline or nickel-metal hydride (NiMH) batteries, present a lower fire risk compared to lithium-ion types. This difference allows for more flexibility in packing.

• Checked or Carry-On: Alkaline and NiMH batteries are generally permitted in both checked and carry-on luggage.
• Terminal Protection: While the risk is lower, protecting terminals from short circuits is still a recommended practice. Keeping them in their original packaging, a battery case, or taping the terminals prevents accidental discharge or contact with other metal objects.

Small, everyday electronics that use these battery types, like flashlights, portable radios, or children’s toys, can travel in either bag as long as the batteries are properly installed and the device is off.

Devices with Installed Batteries: What’s Permitted

When batteries are installed within a device, the rules shift slightly. The key factor is whether the device can accidentally activate or if the battery is easily removable.

• Common Electronics: Laptops, smartphones, digital cameras, electric shavers, and other personal electronic devices with non-removable or installed lithium-ion batteries (under 100 Wh) can travel in either checked or carry-on luggage.
• Safety Measures: If placing these devices in checked luggage, ensure they are completely turned off (not just in sleep mode) and protected from accidental activation. Cushioning them within your bag also helps prevent damage.
• Larger Devices: For items like portable medical devices or larger electronics with installed batteries between 101-160 Wh, airline approval is required if checking them. Always confirm with your airline beforehand.

Spare Batteries: Carry-On is Key

The rule of thumb for any spare battery—whether it’s for your camera, drone, or a backup power bank—is that it belongs in your carry-on bag. This is a consistent regulation across all airlines and is critical for safety.

• Individual Protection: Each spare battery must be individually protected to prevent short circuits. This means placing them in a separate plastic bag, a battery case, or taping over the exposed terminals. This prevents them from touching other metal objects or each other, which could cause a short.
• Quantity Limits: While there isn’t a strict limit on the number of small (under 100 Wh) spare lithium-ion batteries you can carry for personal use, airlines may impose reasonable limits. For larger batteries (101-160 Wh), the limit is typically two spare batteries per passenger, with airline approval.
• Accessibility: Keeping spare batteries in your carry-on ensures that if an issue arises, airline staff can address it immediately.

Medical Devices and Mobility Aids: Special Considerations

Travelers relying on battery-powered medical devices or mobility aids have specific regulations designed to accommodate their needs while maintaining safety.

• Pre-Notification: Always notify your airline in advance if you are traveling with a battery-powered wheelchair, scooter, or other medical device. This allows them to provide specific instructions and make necessary arrangements.
• Battery Types:
  1. Dry Cell (Non-Spillable) Batteries: These are often permitted in checked luggage if the battery is properly disconnected, terminals are insulated, and it’s securely attached to the device.
  2. Wet Cell (Spillable) Batteries: These are generally more restricted and often require specific packaging and handling. They might be allowed in checked luggage if packed in a strong, rigid container designed to prevent spillage, and only with airline approval.
  3. Lithium-Ion Batteries for Mobility Aids: These are subject to the same Wh limits but may have exceptions for larger sizes when installed in a mobility aid. Removable batteries must often be carried in the cabin.
• CPAP Machines: Most CPAP machines use small lithium-ion batteries or can run on alkaline batteries. The device itself can usually be carried on or checked, but any spare lithium-ion batteries must be in your carry-on, protected from short circuits.

Smart Luggage: A Unique Category

Smart luggage, equipped with built-in power banks, GPS trackers, or electronic locks, has its own set of battery rules. These bags often contain non-removable lithium-ion batteries, which can complicate travel.

• Removable Batteries: If your smart bag has a removable battery, you must take it out and carry it with you in the cabin. The bag itself can then be checked.
• Non-Removable Batteries: Smart bags with non-removable batteries are generally prohibited from being checked. Some airlines may even prohibit them as carry-on if the battery exceeds certain Wh limits or cannot be powered off. Always check your specific airline’s policy before flying with smart luggage.

Preparing Your Batteries for Travel

Proper preparation ensures compliance and safety, regardless of where your batteries are packed.

• Terminal Protection: For loose batteries, use electrical tape to cover the terminals, place each battery in a separate plastic bag, or use a dedicated battery case. This prevents accidental short circuits.
• Original Packaging: Keeping batteries in their original retail packaging is ideal, as it provides built-in terminal protection.
• Discharge Lithium-Ion Batteries: For spare lithium-ion batteries, it’s a good practice to discharge them partially (to about 30-50%) before flying. This reduces the energy contained within them, lessening the potential severity of a thermal event if one were to occur.
• Check Airline Specifics: While general rules apply, individual airlines may have slightly stricter policies or specific procedures, particularly for larger batteries or medical devices. A quick check of your airline’s website before packing can prevent delays.