Choosing the Right Portable Charger
Power banks have evolved from bulky bricks to sleek, fast-charging devices. This guide helps you choose based on capacity, charging speed, and travel compatibility.
Capacity Guide
- 5,000mAh: One full phone charge. Pocket-friendly.
- 10,000mAh: Two phone charges. Best all-around size.
- 20,000mAh: 4-5 phone charges. Weekend trip essential.
- 30,000mAh+: Multiple device charges. Camping and travel.
Charging Speed
- USB-C PD: 18-140W, charges phones in 30-60 minutes
- Qualcomm QC 3.0: 18W max, many Android phones
- MagSafe Wireless: 15W max, convenient but slow
Top Picks
Anker 737 Power Bank ($109)
24,000mAh with 140W USB-C PD. Charges a MacBook Pro from 0-50% in 40 minutes. Digital display shows capacity.
Anker Nano 30K ($39)
30,000mAh, compact form. 30W USB-C PD. Built-in USB-C cable. Best value high-capacity option.
Airline Rules
The FAA allows power banks under 100Wh (about 27,000mAh) in carry-on luggage. 100-160Wh require airline approval. Over 160Wh is prohibited. Always carry-on, never checked baggage.
