What is the best portable charger for long flights and road trips?

When choosing a portable charger for long flights and road trips, the most critical factors are battery capacity (staying under the FAA 100Wh limit for carry-on luggage), charging speed (USB-C Power Delivery), and port selection to charge multiple devices at once.

Our top pick is the Anker 737 Power Bank (PowerCore 24K) because of its massive 140W fast-charging capability, high capacity, and highly detailed smart display. For a slimmer profile that slides easily into a seatback pocket or laptop bag, the flat Baseus Blade 100W is an excellent alternative. If you want high capacity on a budget and only need to charge phones or tablets, the INIU 20,000mAh (22.5W) offers outstanding value.