Quick Answer

For most travelers, the best travel power bank is a 20,000mAh USB-C Power Delivery (PD) model at around 74Wh: carry-on legal, four-plus phone charges, enough output to top up a laptop. VoyageHacks’ pick in that class is the Anker 20,000mAh with a built-in USB-C cable. Want pocket-size? The Anker Nano 10,000mAh. Charging a laptop? The INIU 25,000mAh 100W or the slim Baseus Blade. Maximum legal capacity? The Anker Prime 27,650mAh.

Read the full guide: Best Travel Power Banks 2026: 5 Airline-Safe Picks

Can a power bank charge a laptop?

Yes, if it supports USB-C Power Delivery at around 65W or more; 100W banks like the INIU 25,000mAh or the slim Baseus Blade charge a MacBook at close to wall speed. A standard 20–30W phone bank will only trickle-charge a laptop, or won’t charge it at all. Match the bank’s output to the wattage of your laptop’s original charger.

What is pass-through charging on a power bank?

Pass-through charging lets a power bank charge your phone while the bank itself recharges from the wall, so one hotel-room socket refills both overnight. Not every model supports it and some charge slower in this mode, so check the spec sheet before relying on it. It’s a convenience feature, not a must-have. More quick answers live in our answers hub .