Product Price Capacity (mAh) Output Voltage (V) Output Current (A) Number of Ports Size (cm³) Fast Charging
Jackery Explorer 300 Portable Power Station
US
£208.16 293Wh 110VAC 2.7A 6 9.1 x 5.2 x 7.8 in

The Jackery Explorer 300 is a compact 293Wh portable power station with a 300W pure sine wave inverter (500W surge), multiple USB outputs including a 60W USB-C PD, and a 36.4dB quiet operating level. It charges rapidly via a 90W AC wall charger and 60W USB-C PD in combination, supports solar input, and is lightweight for camping and emergency backup.

★ Ideal for

It suits the question about the quietest portable charger because it lists a 36.4dB noise rating and uses a pure sine wave inverter with low-noise design.

Zendure SuperTank Pro PD 100W
US
£126.83 26,800mAh / 96.48Wh 5V, 9V, 12V, 15V, 20V up to 5A (at 20V) for high-power ports; other ports up to 3A or 2A as specified 4 USB-C ports 4.9 in x 2.9 in x 1.8 in

The Zendure SuperTank Pro is a 26,800mAh portable power bank with an aluminum shell, OLED status display, four USB-C ports and firmware upgradability. It supports up to 100W USB-C PD on two ports, PPS on one port, and a combined maximum output of 138W, making it suitable for charging laptops and multiple devices simultaneously.

★ Ideal for

Ideal for a user seeking the quietest portable charger because it uses solid-state USB-C PD with no moving parts and an aluminum body that aids passive heat dissipation while delivering up to 100W PD (two ports) and 138W total without fans.