Power bank UGREEN PB551 20,000 mAh 145W with 1x USB-C, 1x USB-A and integrated cable (55992B)

UGREEN PB551 is a 20,000 mAh portable power bank that supplies up to 145W total output through a combination of ports and an integrated cable. The compact battery pack includes a USB-C port, a USB-A port and a built-in cable for quick connection to compatible devices. The unit is intended to provide portable charging for smartphones, tablets and many laptops that accept high-power USB-C input, delivering a balance of capacity and power for travel, commuting and mobile work.

Advantages

The power bank offers high maximum output that supports fast charging of power-hungry devices and simultaneous charging of multiple gadgets. An integrated cable reduces the need to carry separate cords, while the additional USB-A port provides compatibility with a wide range of accessories and older devices. With 20,000 mAh capacity, it provides multiple full charges for typical smartphones and extended runtime for tablets and accessories. The form factor is designed for portability without sacrificing power delivery.

Suitable for

• Charging smartphones and phablets during travel or daily commuting
• Extending tablet runtime for media playback and remote work
• Providing emergency laptop charging for compatible high-power USB-C notebooks
• Powering accessories such as wireless earbuds, portable speakers and cameras

Key specifications

• Battery capacity: 20,000 mAh
• Maximum combined output: up to 145W
• Output ports: 1× USB-C, 1× USB-A, plus integrated charging cable
• Supported device types: smartphones, tablets, laptops with compatible input
• Portable form factor designed for travel and daily use

How to use

Connect the built-in cable or an appropriate USB-C/USB-A cable to the device you want to charge, then press the power button if required to start output. If charging multiple devices, connect them to available ports; the power bank will allocate output according to device demand and its power management design. Recharge the power bank itself using a compatible high-power USB-C charger to restore capacity more quickly. Observe device charging indicators to confirm successful power delivery.

Usage recommendations

Use a high-quality USB-C charger that supports sufficient wattage to recharge the power bank efficiently. For optimal lifespan, avoid leaving the power bank discharged for extended periods and store it in a cool, dry place. Check device compatibility for high-wattage charging before attempting to charge a laptop; some laptops require specific power-delivery profiles or adapters.