Can I Bring a Portable Charger on an Airplane? | Airline Rules

Yes, you can bring a portable charger on an airplane, but it must go in your carry-on bag, not checked luggage, and the battery capacity must generally be 100 watt-hours or less to avoid needing airline approval.

Traveling with a power bank is straightforward once you know the FAA and TSA rules. The key is that portable chargers contain lithium-ion batteries, and those are treated as spare batteries — which means they cannot go in the cargo hold. Pack it in your carry-on, check the watt-hour rating on the label, and you’re set for most standard consumer power banks. Here’s exactly what the rules say and how to avoid the common mistakes.

Why Portable Chargers Must Go in Carry-On Bags

The FAA and TSA both require spare lithium batteries — including portable chargers and power banks — to be packed in carry-on baggage only. The FAA’s baseline rule for air passengers states that spare lithium batteries must be carried on and cannot be checked, and the TSA’s screening rules confirm that power banks containing a lithium-ion battery are only allowed in carry-on bags. The reason is fire risk: lithium batteries can overheat and cause a fire in the cargo hold where it cannot be easily detected or extinguished.

Watt-Hour Limits: What You Need to Know

The FAA sets capacity limits in watt-hours (Wh), not milliamp-hours (mAh). Most consumer power banks fall in the 0–100 Wh range, which is allowed without any special approval. For larger units between 101 and 160 Wh, you must obtain airline approval before traveling, and there is a limit of two such batteries per person. Any power bank exceeding 160 Wh is completely forbidden on passenger aircraft. If your charger’s label only lists mAh, you can convert: divide the mAh by 1000, multiply by the voltage (usually 3.7V), and you’ll get the Wh figure. For example, a 20,000 mAh power bank at 3.7V equals about 74 Wh — well within the standard limit.

For most travelers, a standard consumer power bank like the best options we recommend for airport use will fall under 100 Wh and need no special steps beyond packing it in your carry-on.

Common Mistakes That Get Power Banks Confiscated

The most frequent error is packing a portable charger in checked luggage — that is prohibited and the TSA will remove it during screening. Another is assuming the limit is based on mAh alone, which can lead to confusion when comparing chargers. Travelers also sometimes leave the Wh label unclear or missing; if the rating is not visible on the device, security may not allow it through, so verify the rating before heading to the airport. Finally, some people assume airline rules for onboard use are the same as the transport rule — airlines may require power banks to remain visible or not stowed in overhead bins, but those are separate operational policies, not the FAA/TSA transport rules covered here.

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