The Ugreen PB727 Nexode Pro is a 10000mAh power bank measuring just 9.0 x 5.1 x 3.3cm, barely larger than a pack of pocket tissues. The built in nylon braided USB-C cable and the separate USB-C port each deliver up to 55W on their own, taking a Galaxy S25 Ultra up 65 percent in 30 minutes, and a USB-A port lets a third device charge alongside them.

The same built in cable accepts 35W input, refilling the bank in about two hours. A digital display shows exact battery percentage and live charging speed in watts, and the 21700 lithium ion cells sit inside a 37Wh rating that keeps it airline approved.

• Model No: PB727 (75701B)
• Series: Nexode Pro
• Capacity: 10000mAh, 37Wh
• Ports: 2 (1 x USB-C, 1 x USB-A)
• Built in cable: 22 cm nylon braided USB-C, tested to 10,000 bends
• Output: 55W built in cable, 55W USB-C port
• Input: 35W, full recharge in about 2 hours
• Protocols: PD 45W, Samsung 45W, Xiaomi 55W Turbo Charge
• Display: Digital, battery percentage and live wattage
• Cells: 21700 lithium ion
• Dimensions: 90 x 51 x 33 mm

• 55W from a bank this small is unusual, and covers a light laptop as well as phones.
• A two hour recharge means it is ready again the same evening rather than the next day.
• The 37Wh rating is well under airline limits, so there is no question at security.