Product Price Capacity (mAh) Output Voltage (V) Output Current (A) Number of Ports Size (cm³) Fast Charging
Anker Anker 737 Power Bank 24,000mAh 140W (PowerCore 24K)
US
£89.68 24000 mAh 5V / 9V / 15V / 20V / 28V 3A / 5A / 2A / 1.5A 3 6.13 x 2.15 x 1.95 in

The Anker 737 (PowerCore 24K) is a 24,000mAh power bank with two USB-C ports and one USB-A port, an OLED status display, and up to 140W PD 3.1 fast charging for laptops and phones. It supports two-way 140W charging for rapid recharge of the bank itself and fast charging of compatible devices and includes multi-port simultaneous charging with intelligent power distribution. The unit is compact and airline-friendly at 86.4Wh and includes safety and temperature monitoring features.

★ Ideal for

Best for fastest charging because it supports up to 140W Power Delivery 3.1 via its USB-C ports, enabling the highest single-port PD charging among portable chargers.

Baseus Baseus Blade 300W 30,000mAh Portable Power Bank
US
£94.17 30000 mAh 5V/9V/12V/15V/20V Up to 3.25A (per USB-C at 20V) 1 x USB-C + 4 x USB-A (5 output ports) 5.71 x 2.56 x 1.5 in

Large 30,000 mAh capacity with an LED display, multi-protocol fast charging (PD, QC, SCP, FCP, AFC) and one high-power USB-C port delivering up to 65W for laptops plus four USB-A ports for phones and accessories. It supports PD input 60W for faster recharging and can charge multiple devices simultaneously, targeting users who need high capacity and laptop-level output on the go.

★ Ideal for

This product suits the question because it provides up to 65W USB-C PD output (specified PD Output 65W max), which enables one of the fastest single-port charging speeds in its capacity class.

Belkin Belkin BoostCharge Pro 25K 140W Portable Charger
US
£63.52 25,000 mAh 5V-28V 5A 3

High-capacity 25,000 mAh laptop power bank that delivers up to 140W via USB-C PD 3.1 EPR and supports simultaneous charging through two USB-C ports and one USB-A. It includes an integrated USB-C cable and a digital battery display, making it suitable for fast-charging laptops, tablets, and phones while meeting TSA carry-on limits. Ideal for travelers and professionals needing high-power portable charging.

★ Ideal for

Best for fastest charging because it supports USB-C PD 3.1 EPR up to 140W (single-port) and 158W shared output across ports.

UGREEN UGREEN Nexode 25000mAh 165W Portable Power Bank (PD 165W)
US
£82.20 25000 mAh 3.7 V 4 16.9L x 8.1W x 2.7Th centimetres

High-capacity 25000mAh power bank with a smart digital display, two built-in USB-C cables and two additional ports allowing simultaneous charging of up to four devices and up to 165W total output. It supports PD3.1 and multiple fast-charge protocols and is airline-friendly at 90Wh (25000mAh).

★ Ideal for

This product suits someone seeking the fastest portable charging because it delivers up to 165W total output and includes a 140W built-in USB-C cable and PD3.1 support for EPR-level fast charging.

Zendure Zendure SuperTank Pro 26,800mAh 140W Portable Charger (PD 140W)
US
£127.05 26,800mAh / 96.48Wh 5V, 9V, 12V, 15V, 20V Up to 5A 4 USB-C ports 4.9 in x 2.9 in x 1.8 in

High-capacity 26,800mAh power bank with an OLED display, four USB-C ports (two high-power 100W PD ports and two 18W ports), firmware updatable and fast recharge capability; suited for charging laptops, tablets, and multiple devices simultaneously. It combines airline-friendly battery size with laptop-class USB-C PD outputs and an aluminum shell.

★ Ideal for

This product suits the fastest-charging portable charger question because it provides up to 100W USB-C PD per port and up to 138W total output, enabling laptop-speed charging.