Most items use USB‑C ports. A few battery chargers don’t list any wired connection ports, and some portable chargers include or mention built‑in USB‑C cables.
Listings commonly mention USB Power Delivery (PD, including PD 3.0) and Quick Charge. Protection and safety features cited include UL listing, short‑circuit and surge protection, and temperature monitoring.
Common output combinations include 5V/3A, 9V/3A, 15V/2A, and 20V/1.5A. Overall reported voltages range from 5V up to 20V, with current values typically between about 1.5A and 3A.
Listings explicitly mention certifications such as UL and broader compliance marks like USB‑IF, CE, and FCC.
Reported capacities range from about 1,460 mAh for smaller packs up to 20,000 mAh for high‑capacity power banks.
