Standard phone and laptop chargers without batteries are allowed in checked bags, but power banks with lithium batteries must go in carry-on.
You’re zipping up your checked suitcase, phone at 30 percent, and you realize the charger is still on the nightstand. Tossing it in feels like the obvious move — it’s just a cable and a brick. But then you pause, remembering something you heard about batteries and cargo holds.
The confusion is understandable because “charger” covers two very different items in the TSA’s rulebook. Standard laptop and phone chargers — the kind that plug into the wall — don’t contain batteries at all. Portable power banks, however, contain lithium-ion cells and follow stricter rules. This article explains exactly what can go where and why.
Standard Chargers vs. Power Banks — The Key Distinction
The TSA draws a clean line between these two categories. Standard laptop and phone chargers — the power brick and cable combo that connects to a wall outlet — contain no internal battery. These are generally allowed in both checked and carry-on luggage.
Power banks and portable chargers are a different story. These devices contain rechargeable lithium-ion cells that store energy. The TSA classifies them as spare lithium batteries rather than installed device batteries, which triggers a different rule.
That rule is straightforward: any portable charger or power bank containing a lithium-ion battery must be packed in your carry-on bag. Spare lithium batteries of any kind are prohibited in checked luggage entirely.
Why the Lithium Battery Rule Exists
You might wonder why a portable charger gets singled out when your laptop — which also has a lithium battery — can go in a checked bag. The reason comes down to accessibility and fire response. Here’s what makes power banks different:
- Fire risk at altitude: Lithium batteries can overheat and catch fire if damaged or if the terminals short-circuit. The FAA has documented multiple in-flight incidents linked to lithium battery fires.
- Inaccessibility in cargo hold: If a battery ignites inside a checked bag stored in the cargo hold, no one can reach it until the plane lands. In the cabin, flight crew can respond immediately.
- Loose battery danger: In checked luggage, power banks can shift during transit, potentially coming into contact with metal objects like keys or coins that may cause a short circuit.
- Past incident history: Several airline incidents, including a well-documented Delta flight in 2023, involved lithium battery fires originating from baggage, reinforcing the need for strict rules.
The rule isn’t arbitrary — it’s based on documented safety incidents where inaccessible batteries posed a serious threat during flight. Keeping power banks in the cabin gives the crew a fighting chance if something goes wrong.
What the TSA Rule Actually Says
The TSA’s official guidance is clear and worth reading directly. On its portable charger page, the agency explains that phone chargers and laptop chargers without batteries are fine in either bag. The catch comes with portable chargers: the TSA explicitly defines these as devices containing a lithium-ion battery that must be packed in carry-on bags.
This matters because a lot of travelers pack a compact power bank thinking it’s just another charger. The TSA clarifies this distinction on its TSA portable charger rule page, which states that any power bank containing a lithium-ion battery must travel with you in the cabin. Spare lithium batteries of all kinds are banned from checked luggage entirely.
The FAA reinforces this guidance, noting that lithium batteries can catch fire if damaged or if battery terminals are short-circuited. Because standard chargers contain no battery cells at all, they simply don’t present this same risk, which is why they face no restriction.
What Counts as a Power Bank
The definition is broader than you might think. Any device whose primary function is storing charge to power other electronics — regardless of size, shape, or brand — is a power bank under the TSA’s rules. Keychains with built-in charging capability, phone cases with integrated batteries, and even some laptop sleeve chargers all qualify.
| Item Type | Checked Baggage | Carry-On Baggage |
|---|---|---|
| Phone wall charger (cable + brick) | Allowed | Allowed |
| Laptop power brick and cable | Allowed | Allowed |
| Portable power bank (any size) | Prohibited | Allowed |
| Phone case with built-in battery | Prohibited | Allowed |
| Charging keychain or mini backup | Prohibited | Allowed |
The pattern is simple: if it stores power for later use, it goes in your carry-on. If it only transfers power from a wall outlet to your device, either bag works.
How to Pack Chargers Correctly for Your Flight
Knowing the rule is one thing; packing correctly is another. A few simple steps before your trip can prevent delays at the security checkpoint and keep you compliant with airline regulations.
- Identify your charger type before you pack. Look at the device. If it has a USB port and no prongs, it likely contains a lithium battery and belongs in carry-on. Standard wall chargers with prongs are usually safe for either bag.
- Pack standard chargers in checked baggage if preferred. Since they contain no battery, standard phone and laptop chargers can go in your checked suitcase without issue. This frees up carry-on space for bulkier items.
- Always place power banks in your carry-on bag. This is non-negotiable. The TSA will remove power banks from checked bags during screening, and you may face delays or lose the item entirely.
- Protect battery terminals from metal contact. If you’re packing a power bank in your carry-on, tape over the USB ports or place it in a dedicated pouch. This prevents accidental short-circuiting from keys or coins shifting around.
- Check your airline’s quantity limits. Some airlines limit the number of power banks you can carry or restrict batteries above a certain watt-hour rating. United, for example, limits spare batteries to 20 per passenger.
Taking these steps before you leave home means less fumbling at the airport and a smoother security experience. A minute of prep saves ten minutes of repacking at the checkpoint.
Airline Policies and Special Situations
While the TSA sets the baseline rule for security screening, individual airlines can impose their own restrictions on top of that. In practice, most major US carriers follow the same framework — power banks in carry-on only — but some go further.
American Airlines states on its restricted items page that devices using lithium-ion batteries cannot travel in checked bags but are acceptable in carry-on luggage. Delta, United, and Southwest have nearly identical policies. The consistency across carriers means the basic rule is simple to remember.
The reasoning behind these airline policies comes directly from safety data. The FAA has documented the specific fire risk that drives this policy — see its lithium battery fire risk page for the full safety data. Lithium batteries stored in checked luggage would be inaccessible during flight, making it impossible to respond to a fire emergency at cruising altitude.
International Travel Considerations
If you’re flying internationally, check the regulations for your destination country as well. The European Union Aviation Safety Agency (EASA) and Canada’s CATSA both apply similar rules, but battery capacity limits may differ. Some Asian carriers cap power banks at 100 watt-hours without special approval.
| Battery Capacity | Rule for Carry-On | Rule for Checked |
|---|---|---|
| Under 100 Wh (most consumer power banks) | Allowed without special approval | Prohibited |
| 100-160 Wh (larger laptop batteries) | Allowed with airline approval | Prohibited |
| Over 160 Wh (industrial batteries) | Banned from passenger aircraft | Banned from passenger aircraft |
If you’re traveling with a high-capacity power bank specifically for extended trips, contact your airline before you arrive at the airport to verify their approval process.
The Bottom Line
The rule boils down to one question: does your charger store power or just transfer it? Standard wall chargers and cables are fine in either bag. Power banks, phone-case batteries, and any device that stores a charge must go in your carry-on. Packing a power bank in checked luggage risks losing the item at security and delays your screening.
Before your next flight, take thirty seconds to check your specific carrier’s battery policy online — rules can vary slightly between airlines, and knowing yours ahead of time saves surprises at the check-in counter.
References & Sources
- TSA. “Phone Chargers” The TSA defines “portable chargers” or “power banks” as devices containing a lithium ion battery that must be packed in carry-on bags.
- FAA. “Lithium Batteries Baggage” Lithium batteries can catch fire if damaged or if battery terminals are short-circuited, which is why they are restricted in checked baggage.